Designing a questionnaire that informs product design Engineers play a key role in our everyday lives, often in ways we may not realise. Take the Watt Nightclub in Rotterdam as an example - engineers have designed a system that turns the energy created by dancing into power for the lighting. Even the colour of the lights was a consideration. In this activity, students will explore the relationship between colour and mood, and how it might impact the amount of electricity generated on a dance floor. This is one of a set of resources developed to aid the class teaching of the secondary national curriculum, particularly KS3. It has been designed to support the delivery of key topics within maths, science and design and technology (DT). Activity: The activity begins with a class discussion on whether colour can scientifically affect mood. Students will then learn about the role of questionnaires in research, including what makes a good questionnaire and what factors need to be considered when designing one. The class will watch the Dance Power film, which directly relates to this technology, and then split into groups to create their own questionnaires. These will be tested, evaluated, and refined before being conducted as homework. Students will process and present their findings, considering the reliability and accuracy of their evidence. They’ll discuss their results and the effectiveness of questionnaires as a research tool. The engineering context Market research is essential for engineers working in product design, providing valuable insights into consumer needs and preferences, enabling them to create innovative products that meet market demand and improve user satisfaction. Furthermore, by exploring how engineers can use colour to influence mood and hence energy production, students will gain an insight into the creativity and problem-solving involved in engineering. Suggested learning outcomes Through this activity, students will gain an understanding of the scientific method, specifically the design and implementation of a market research questionnaire. The class will develop the ability to generate scientific evidence to prove a hypothesis, in this case, the relationship between colour and mood. They will also consider what constitutes sufficient evidence for scientists to confirm a hypothesis. Download our activity sheets for free! The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. All activity sheets and supporting resources are free to download (including the video), and all the documents are fully editable, so you can tailor them to your class’s and your schools’ needs. Please do share your highlights with us @IETeducation.

Use data on energy consumption to investigate how average values are calculated This scheme of work is designed to enable students to explore the relevant issues of energy cost and efficiency. Learners will use functional mathematics to understand that published facts and figures may not always be accurate, and that mathematical insights are necessary to scrutinise data. In this engaging activity for KS3, students will analyse data related to electricity consumption, with a focus on how average values are determined. Students will also evaluate the accuracy of published data sources and consider potential biases. This resource would work well as a main lesson in maths. This activity uses data for England. Students in Wales, Scotland, or Ireland may wish to research data for their areas. To begin the activity, prompt students to create a list of the various types of housing that individuals reside in. Which type of house is likely to require the most energy? Provide students with the Resource Sheet handout, which displays typical yearly electricity bills for different housing types. Students should collaborate in groups of 2-4 to review and analyse the data, and answer the questions included on the resource sheet. Students should be encouraged to reflect on the meaning of this data rather than just accepting it at face value – can they find raw figures and do the calculations to support the information shown? The engineering context Energy efficiency refers to the use of less energy to perform a specific task or achieve a particular outcome. In other words, it is the ability to accomplish the same level of output using less energy input. Energy efficiency can be achieved through the use of more efficient technologies, equipment, or processes, as well as through changes in behaviour and practices. It is an important concept in the context of sustainable development, as it helps to reduce energy consumption and greenhouse gas emissions, conserve natural resources, and lower energy costs. Examples of energy-efficient practices include using energy-saving light bulbs, improving building insulation, and upgrading to energy-efficient appliances. Suggested learning outcomes By the end of this activity students will understand that mathematics is used as a tool in a wide range of contexts, and they will be able to use mathematics to interpret the impact of energy costs on society. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Use mathematics to investigate the topical issue of the cost and efficient use of energy This engaging activity for KS3 seeks to teach students how to use mathematics to investigate the topical issue of the cost and efficient use of energy. This is a thought-provoking exercise that will teach students to think about sustainability and develop their understanding of mathematical modelling. In this activity students will investigate the topical issue of the cost and efficient use of energy. Using functional mathematics, they will recognise that published facts and figures are not necessarily accurate and that mathematical insight should be used to probe data. As an optional extension activity, students could quantify how energy is used for heating within a dwelling. The quantification could be in terms of units of energy and/or cost. They could then find comparable data for one or more dwellings of different design, for example of different sizes, of radically different design (e.g. flats vs. detached houses), or dwellings designed to be eco-friendly. They should analyse the differences in energy performance identified. This is a quick and simple activity that will take approximately 15 – 30 minutes to complete. Tools/resources required Projector/Whiteboard The engineering context Energy efficiency refers to the use of less energy to perform a specific task or achieve a particular outcome. In other words, it is the ability to accomplish the same level of output using less energy input. Energy efficiency can be achieved through the use of more efficient technologies, equipment, or processes, as well as through changes in behaviour and practices. It is an important concept in the context of sustainable development, as it helps to reduce energy consumption and greenhouse gas emissions, conserve natural resources, and lower energy costs. Examples of energy-efficient practices include using energy-saving light bulbs, improving building insulation, and upgrading to energy-efficient appliances. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Identify the advantages and disadvantages of remote or robotic surgery Telemedicine is a new and fast developing field in healthcare. Even 20 years ago the idea of a surgeon being able to operate a robot from hundreds of miles away in order to perform an operation seemed like science fiction. Today, this is not only possible but engineers, working with scientists and doctors, are now designing robotic systems which will be able to operate on patients with no human intervention at all. Activity info, teachers’ notes and curriculum links In this activity, learners will explore the impact of modern technology on science, using telemedicine and robotics as a context. The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Investigate aspects of biomedical signal processing The use of different types of signals is hugely important in all areas of healthcare. Signal processing engineers are involved in everything from extracting information from the body’s own electrical and chemical signals to using wireless signals to allow search-and-rescue robot swarms to communicate with each other. Activity info, teachers’ notes and curriculum links In this practical session students investigate aspects of signal processing. Working in teams, students convert an analogue brain signal into a digital format and transmit it across the classroom to another team using flashes from the LED on the Digital Communicator that they will need to build. The other team will record the digital format and rebuild the original waveform from that information. This activity can be used as a hands-on extension to the ‘Which Imaging Technique?’ activity (see Related activities section below). The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources (including film clips!) are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Investigate the properties of smart springs and see how they might be used as muscles in a robotic arm This fun engineering activity encourages students to investigate prosthetic materials and the properties of smart springs and see how they could be used as muscles in a robotic arm. This is a free resource aimed at secondary school students. This activity encourages students to investigate the properties of smart materials and carry out some data manipulation. Students will also explore the possible moral and ethical issues associated with people potentially choosing to replace healthy body parts with artificial prostheses because they offer higher performance. This exercise should take around an hour to complete. Resources required for class: Several desk fans should be available but kept out of sight of the students until needed. Resources required per team: Wooden ‘arm’ as shown in the diagram on the handout below. These will need to be constructed in advance of the lesson. This could be done either by the science technician or by the students themselves as part of a joint project with design and technology. 1 to 1.5 mm diameter copper or other fairly flexible metal wire. Must be stripped of insulation A smart spring made from a shape memory alloy such as nitinol Power supply, leads, crocodile clips Retort stand Ammeter Voltmeter Sets of slot masses of various sizes The engineering context The development of new materials with incredible properties is changing the way we live. From LCD TVs to super light airliners, these materials have quickly found their way into the modern technology around us. One area where modern materials have made a huge impact is in the development of prosthetic devices. Some of these devices are beginning to outperform ‘natural’ body parts. Suggested learning outcomes By the end of this activity learners will be able to explain why a material is chosen for a use based on its properties, they will be able to describe how smart materials are used in a real life context and they will be able to use and manipulate material-related data. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Structured class debate on the location of a new wind farm There is much debate about the issues created by carbon emissions and how renewable energy sources can help resolve these challenges. Most people agree that renewable energy is a good thing, but many oppose to having wind turbines built near their neighbourhood. In this role-play activity, participants take on different roles to debate a proposed wind farm. In pairs, students discuss whether their character would be in favour of the proposed wind farm and prepare a two-minute talk to share their case with the group. Afterwards, divide the larger groups into ‘for’ and ‘against’ and bring together all the individual statements to form a strong, coherent case. Four people are chosen to give two reasons to support their argument. Activity info, teachers’ notes and curriculum links This activity has been written with a strong science bias. However, it can easily be taught in design and technology with either a systems and control approach or from a ‘sustainability’ angle, looking at the topic of wind farms and the future of energy production. The ‘sustainability’ perspective will provide an activity that could involve design and technology, geography and citizenship. Download the activity sheets for free! All activity sheets and supporting resources are free to download and are fully editable, so you can tailor them to your students’ and your schools’ needs. Please do share your classroom learning highlights with us @IETeducation The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland, and Wales.

Select a method of medical imaging most appropriate for a particular medical condition The use of different types of signals is hugely important in all areas of healthcare. Signal processing engineers are involved in everything from extracting information from the body’s own electrical and chemical signals to using wireless signals to allow search-and-rescue robot swarms to communicate with each other. Together with related activities, this resource allows students to investigate the wide range of sophisticated imaging technology available in modern hospitals, and to explore the latest ideas in search-and-rescue robotics. Activity info, teachers’ notes and curriculum links This activity gets students to work in small teams to select a method of medical imaging which is appropriate to a particular medical condition. Students are provided with the medical records of eight patients. The different imaging techniques covered in this activity include: CAT, Gamma cameras, MRI, PET, Thermology, Ultrasound and X-rays. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources (including film clips!) are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Analyse data to find the best material for a prosthetic foot The development of new materials is having a huge impact on all of our lives. This engineering activity for kids encourages students to look at a variety of materials and find out which would be the best for ankle and foot prosthetics. Different materials will perform in a variety of different ways, and it is through the analysis of the materials that students will be able to work out which would be the best for a prosthetic foot. This fun STEM activity is designed as a main lesson exercise for secondary school students. Learners will carry out some data manipulation to find the best material from which to make a prosthetic foot. The activity offers strong opportunities for cross-curricular work with Mathematics. The class will be split into teams. Students will work as teams of engineering materials consultants and have to find the best material from which to make a prosthetic foot. Using the related handouts, which can be found below, students will plot graphs of stress against strain for seven different materials and calculate the gradient in order to find the stiffness for each material. Based on this information, students should select which of the seven materials is the most suitable for the construction of the foot. Students will present their recommendations to the rest of the class and the other teams will comment on their recommendations. What you will need: Graph paper Pen/pencil The engineering context The development of new materials with incredible properties is changing the way we live. From LCD TVs to super light airliners, these materials have quickly found their way into pretty much all of the modern technology around us. One area where modern materials have made a huge impact is in the development of prosthetic devices. Some of these devices are beginning to outperform ‘natural’ body parts. The resources within this, and the related activities, encourage students to investigate the properties of smart materials and carry out some data manipulation. Students will also explore the possible moral and ethical issues associated with people potentially choosing to replace healthy body parts with artificial prostheses because they offer higher performance. By the end of this activity students will be able to make the link between material properties and material usage. They will be able to understand how smart materials are used in a real life context and they will be able to use and manipulate material-related data.

Learn about the technology behind satellite navigation systems and discuss the pros and cons of using them Can your students consider how a GPS system functions and discuss the advantages and disadvantages of using them? This activity is suitable for KS3 and KS4 and encourages students to undertake research and produce a visual display. This activity is an engaging investigation into the uses of communication technology in the modern world. This activity is an individual activity and could be run in an ICT suite to allow students to use the internet for research. Distribute the Sat Nav handout to students. This handout gives some outline information about satellites and an un-annotated diagram. Students can cut out or copy the un-annotated diagram and add information to this to produce a visual display of how a Sat Nav system works. There are a series of questions on the Sat Nav handout. Questions 1-4 are designed to get students to undertake research on the topic of satellites and their functionalities and capabilities. This is a simple activity that will take approximately 30 minutes to complete. How does a Sat Nav system work? What we often refer to as ‘Sat Nav’ is properly called the Global Positioning System (GPS). This uses satellites that continually transmit a signal. They are like an accurate orbiting clock. The signal from at least three and up to seven satellites is received and compared by the Sat Nav device. Using some complicated maths, the Sat Nav device can work out not only where it is on the Earth’s surface, but at what altitude it is as well. The position information is compared with a map downloaded and stored by the Sat Nav device. The satellites tell you where you are, and the mapping hardware fills in the pictures of the road around you. The satellites need to have a clear path through the air to the Sat Nav device – this is normally called a clear line of ‘sight’. The engineering context Living in a highly technological world, where access to information and entertainment is at our fingertips, the Inform and Entertain Me topic is a gateway to engage and introduce students to the principles and technology that form the basis for communication devices that are used in our everyday lives. Download the free How does a Sat Nav system work? activity sheet! All activity sheets, worksheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Work out how to reach destinations using a scale map In our daily life we take 21st-century technology for granted. Some could argue that we aren’t developing basic skills, as technology often does the work for us. When the technology fails, however, the absence of some necessary skills could create difficult situations. Can your students use our worksheet and presentation to work out how to reach a destination from a scale map? This activity is an engaging investigation into the uses of communications technology in the modern world. There is an opportunity to audit the students’ skills such as visualisation or map-reading to form a scale drawing. These are skills that may not have been developed due to the use of various electronic devices. As a visualisation activity, distribute the Lost Now presentation as a handout or display it using a data projector. This is an activity where the process of thinking about what the map might show is more important than the actual outcome of the sketch they would produce. The handout has text handouts that can be printed and given to the students. There is also a map using Ordnance Survey symbols that might be better displayed on a screen using a data projector. Students should complete the three activities outlined in the presentation either in groups or as individuals. Tools/resources required Ruler (a transparent ruler showing millimetres is best) Calculators Students will need Ordnance Survey symbols from the website below (either print sheets of the symbols or display them on a screen to save on copying). The engineering context Living in a highly technological world, where access to information and entertainment is at our fingertips, the Inform and Entertain Me topic is a gateway to engage and introduce students to the principles and technology that form the basis for communication devices that are used in our everyday lives. Suggested learning outcomes By the end of this activity students will be able to make informed decisions about technology for social, economic and environmental reasons, they will be able to use scale drawing and they will have an understanding of how waves are used to carry a communications signal. Download the free Reading maps and scale drawings activity sheet! All activity sheets, worksheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

**This activity gets students to use their knowledge of electromagnetism in order to design and build a magnetic tool holder for a surgical robot. ** Students learn how simple scientific principles can be used in sophisticated applications, how electric circuits can be switched on and off, and the factors that can affect the strength of an electromagnet. Activity introduction Each group is a dedicated design team with a compelling mission – to craft a comprehensive outline design for a tool holder tailored to seamlessly integrate with a surgical robot’s arm. The task at hand: • Each surgical tool boasts a magnetic fitting, necessitating the utilisation of an electromagnet within the tool holder to ensure a secure grip. • A dynamic approach is required considering the diverse range of sizes and weights among these tools; This entails varying the electromagnet’s strength to account for this. Guided by these challenges, teams will brainstorm, innovate, and collaborate to present their inventive solutions in a concise one-minute presentation to the rest of the class and assessed according to the success criteria on the design brief. The engineering context Telemedicine employs contemporary communication technology to provide medical diagnoses and patient care, even when the physician and patient are geographically separate. Remote surgery entails utilising robotic systems within the operating room to aid surgeons during procedures. The surgeon observes the patient through a terminal and controls robotic surgical instruments using a specialised console. Suggested learning outcomes Upon completion of this activity, students will gain an understanding of the capabilities of surgical robots. They will grasp the transformation of basic scientific principles into intricate applications, comprehend the functioning of electric circuits’ activation and deactivation, and discern the variables impacting the strength of an electromagnet. Download the free activity sheet! All activity sheets and supporting resources are free to download, and all the documents are fully editable so that you can tailor them to your students and your schools’ needs. The activity sheet includes teacher notes, guidance, helpful web links, and links (where appropriate) to the national curriculum in the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Students compete to make the strongest electromagnetic tool holder for a surgeons robotic arm. A practical activity where students work in teams to build their own electromagnet and use this to make an ‘arm’ with an electromagnetic gripper at one end. They are given some basic parts to start and a budget - a sum of ‘money’ or tokens with which to buy the other parts. Once their arm and gripper are complete they have 30 seconds to move as many paper clips from one pile to another as possible. The team moving the most paper clips in the allotted time is the winner. This activity makes students consider the factors involved in electromagnet strength and design. Download the activity sheets for free! And please do share your classroom learning highlights with us @IETeducation

This is a practical exercise in which students will utilise their mathematical knowledge to solve problems and apply formulas. Specifically, they will compute the length of pipes necessary for an underfloor heating system. They will also write a brief explanation of how a sustainable underfloor heating system operates. This can be effectively taught within mathematics or within design and technology, as part of resistant materials or product design. How long will this activity take? This activity will take approximately 60-90 minutes to complete Tools/resources required Green School film Projector/Whiteboard Measuring equipment e.g. tape measures or trundle wheels Squared paper The engineering context Sustainability is a key consideration in modern engineering practices. As the world faces pressing environmental challenges such as climate change and resource depletion, engineers must design solutions that not only meet the needs of society, but also minimise their impact on the planet. Sustainable engineering involves developing systems, products and processes that are socially, economically, and environmentally responsible. This can include reducing carbon emissions, optimising energy use, minimising waste, conserving natural resources, and designing products that can be recycled or repurposed at the end of their lifecycle. Suggested learning outcomes By the end of this activity students will be able to describe the operation of a sustainable underfloor heating system and they will be able to create and apply mathematical formulae in a practical context. Download the free Maths Behind a Heating System activity sheet! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Write a set of rules for governing the behaviour of a robot swarm used in search and rescue operations The use of different types of signals is hugely important in all areas of healthcare. Signal processing engineers are involved in everything from extracting information from the body’s own electrical and chemical signals to using wireless signals to allow search-and-rescue robot swarms to communicate with each other. Together with related activities, this resource allows students to investigate the wide range of sophisticated imaging technology available in modern hospitals, and to explore the latest ideas in search-and-rescue robotics. Activity info, teachers’ notes and curriculum links This activity gets students to work in small teams to create a set of simple rules which can be used to control a robot swarm designed to help in search-and-rescue-type scenarios such as earthquakes. The ‘Robot Swarms’ student brief sets the scene. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources (including film clips!) are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs.

Time the journeys of different shaped boats and present the results This engaging engineering activity for KS3 considers displaying data from a practical investigation looking at the effect of streamlining a boats hull. Students will be asked to consider how this information can be represented effectively and use this to form conclusions. The reliability of their results will then be discussed. Activity Measuring boat speed Students will use the test rig, which can be found in the resources below, to test several different shaped boats. Students should measure the time taken for each boat to travel a set distance and record the results. Ask the students to discuss the fact that there is no measurable independent variable as it is very difficult to quantify the hull shape in terms of numbers. The students should ponder how they are going to represent these results graphically. If time is available, complete the investigation by repeating the tests. Discuss the sorts of errors that might occur in the collection of results. Learners will then plot their results into a bar graph. This could be used as part of an advertising campaign to sell the boat which could include design, bar chart, a brief conclusion and an explanation as to why the results are reliable. There is also an opportunity to use data logging equipment as well as light gates to further reduce errors in this engineering activity. As an extension, students could calculate speed (s=d/t), and the mean speed for each boat, taking into account the anomalous results. Students could consider what they could measure to draw a line graph and find the optimal hull design. If time is available, students could manufacture and test their own designs and include them within the analysis. This activity will take approximately 45 minutes. Tools/resources required The construction is a fairly simple activity and can be undertaken by your KS3 students (as an after school activity or by a technician) Boat objects Stop Watch Graph Paper Suggested learning outcomes By the end of this activity students will be able to explain when to use a bar chart and when they should be used to display categoric variables, they will be able to evaluate an experiment in terms of its reliability and precision and they will be able to apply scientific and mathematical understanding to an engineering context. All activity sheets, worksheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Please share your classroom learning highlights with us @IETeducation

Learn about sound waves in this free STEM with this free lesson plan for KS3 From founding communications, such as the fire beacon, to being able to communicate with space, there is no denying that developments in communication have advanced at a rapid speed. This topic presents students with communications of the past, present and future, helping them to understand the principles that form the basis for these developments. This engaging STEM activity is aimed at KS3 students and deals with how animals use sounds and how sounds change in natural phenomena. This is so that a student can understand how sound waves travel. The teacher will first distribute a copy of the ‘Animal Sounds’ handout, which can be downloaded below, to each student. Make sure students understand sound is a longitudinal wave of compressions and rarefactions of the material. Soundwaves follow the laws of wave behaviour, so they are a useful introduction to wave properties. This activity can be simplified (particularly for less able students) by creating a discussion on why different animals have different hearing ranges and their experience of phenomena such as the Doppler effect. Use the handout to discuss different sounds and what they might have learned in other lessons (e.g. music) about pitch, frequency, amplitude etc. As an extension students could produce a display from low to high frequency, showing where the sound ranges used by different animals lie. Students could consider how sounds outside the normal spectrum could be used to develop new products. For example, to make ‘silent’ devices to broadcast sound or data between two points. This is a quick and simple activity that will take approximately 15 minutes. Tools/resources required Calculators The engineering context Sounds are vibrations travelling through materials. Many animals make sounds, either for communication or for location. Sound travels at different speeds in different materials. Generally, the denser the material, the faster the sound will travel. Sound is a longitudinal wave of compressions and rarefactions of the material (a rarefaction involves particles in the material being more spread out than usual). Sound waves follow the laws of wave behaviour, so they are a useful introduction to wave properties. Suggested learning outcomes By the end of this free resource students will know that sound is produced by objects vibrating and they will understand that sound is a longitudinal wave. They will also know about the range of frequencies that can be heard by humans and other animals and they will understand that sound travels at different speeds in different mediums. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Explore the risks associated with exposure to microwaves Living in a highly technological world, where access to information and entertainment is at our fingertips, the Inform and Entertain Me topic is a gateway to engage and introduce students to the principles and technology that form the basis for communication devices that are used in our everyday lives. Activity info, teachers’ notes and curriculum links This engaging activity allows students to explore the hazards and risks associated with exposure to microwaves. A microwave monitor is used to measure the microwave radiation from a microwave oven and a working mobile phone at a range of distances. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Explore the properties of solids, liquids and gases In this unit, students will develop their understanding of the properties of the three states of matter. They will have the opportunity to experiment with a range of different substances that do not fit neatly into the traditional states of matter model. Activity info, teachers’ notes and curriculum links An engaging activity where students will explore materials to develop an understanding of why they behave the way they do. The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Look at the type of electromagnetic radiation used in different imaging techniques In this engaging activity students will look at the properties and applications of waves in general, and the electromagnetic spectrum in particular. The use of different types of signals is hugely important in all areas of healthcare. Signal processing engineers are involved in everything from extracting information from the body’s own electrical and chemical signals to using wireless signals to allow search-and-rescue robot swarms to communicate with each other. From X-rays to MRI scans, student will gain a new appreciation for the science behind these common procedures. This is one of a set of resources developed to aid the teaching of the secondary national curriculum, particularly KS3. It has been designed to support the delivery of key topics within science and design and technology (DT). Activity: Looking at the type of electromagnetic radiation used in different imaging techniques Learners will try to work out the type of electromagnetic radiation used in different imaging techniques. Students will be given a quiz handout with five statements related to a specific wavelength of electromagnetic radiation. They will discuss in mixed ability teams to determine the correct type of radiation for each statement. The quiz includes four rounds, with the possibility of extending the activity by adding properties for other areas of the spectrum such as infrared, ultraviolet, and more. The engineering context Many medical imaging technologies, such as X-rays, CT scans, and MRI, are based on principles of electromagnetic radiation. By looking at the practical applications of electromagnetic radiation, students will see first hand how engineers can make significant contributions to healthcare and other vital sectors. Suggested learning outcomes Students will deepen their understanding of the electromagnetic spectrum and its continuous range of wavelengths, frequencies, and associated properties. They will become aware of the practical applications of electromagnetic radiation in medicine, particularly through the use of scanners. This knowledge will not only enhance their scientific understanding but also foster critical thinking and cooperative learning skills. Download our activity sheets for free! The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. You can download our classroom lesson plan and quizzes for free! Please do share your highlights with us @IETeducation.