A series of 5 exam questions that challenge students to work out the actual size of a section as seen under a microscope or the magnification. These questions will test their ability to convert between measurements and give answers in micrometers. These questions are suitable for GCSE and A-level students

A detailed lesson presentation (25 slides) that introduces students to the difficult topic of specific heat capacity. Students are guided through the equation for energy transferred and shown how to rearrange the equation, so they are able to tackle the question, no matter the subject of the question. There are regular opportunities for students to apply their new found knowledge to questions and to assess themselves against the answers. Quick games and competitions are also used to maintain engagement. If you choose to download this lesson, it would be much appreciated if you would take just a few seconds to write a review so I can improve my practice and other teachers can see if this resource is right for them. Thank you in advance.

This is a fully-resourced revision lesson that uses a combination of exam questions, understanding checks, quick differentiated tasks and quiz competitions to help the students to assess their understanding of the topics found within Topic C2 (Inorganic chemistry) of the Edexcel iGCSE Chemistry specification which has its’ first assessment in 2019. The topics that are tested within the lesson include: Group 1 (alkali metals) Group 7 (halogens) Gases in the atmosphere Reactivity series Extraction and uses of metals Acids, alkalis and titrations Chemical tests Students will be engaged through the numerous quiz rounds whilst crucially being able to recognise those areas which require their further attention during general revision or during the lead up to the actual assessment. The detail of this lesson means that it could be used over a number of lessons at school so that each topic is covered in sufficient depth.

This is a fully-resourced REVISION lesson that consists of a detailed and engaging PowerPoint (86 slides) and associated worksheets that challenge the students on their knowledge of the content of Topic 5 (Health, disease and the development of medicines) of the Edexcel GCSE Biology specification. A wide range of activities have been written into the lesson to maintain motivation and these tasks include exam questions (with answers), understanding checks, differentiated tasks and quiz competitions. The lesson has been designed to include as much which of the content from topic 5, but the following sub-topics have been given particular attention: Identification of bacterial, fungal and viral diseases in animals and plants The treatment of bacterial infections The reduction and prevention of the spread of pathogens The body’s response to immunisation The physical defences of humans and plants The risk factors of CHD and possible treatments BMI The production and use of monoclonal antibodies This lesson can be used at numerous points over the duration of the course, as an end of topic revision aid, in the lead up to the mocks or in the lead up to the actual GCSE exams.

This lesson describes how to obtain and use sampling results to calculate an estimate for the population size of a sessile, slow-moving or motile organism. The PowerPoint and accompanying worksheets are part of the second lesson in a series of 4 lessons that have been designed to cover the content of topic 7.4 (Populations in ecosystems) of the AQA A-level Biology specification and includes descriptions of the use of randomly placed quadrats, quadrats along a belt transect and the mark-release-recapture method. As you can see from the image, step by step guides are included in the lesson that walk the students through each stage of the calculations and these are followed by opportunities to challenge their understanding by answering exam-style questions. Mark schemes for the 7 questions that are answered over the course of the lesson are embedded into the PowerPoint and this allows the students to assess their progress. When considering the mark-release-recapture method, the assumptions that are made and the precautions that need to be taken are considered and the students are challenged to link the changes in the numbers of rabbits to the topic of stabilising selection.

A fully-resourced lesson that includes a lesson presentation (20 slides) and a differentiated worksheet. The lesson uses a step-by-step method to guide students through the process of writing net ionic equations. Students will learn the meaning of a spectator ion and be able to identify them within an equation so that they can be removed when writing the final net ionic equation. The lesson focuses on writing these equations for neutralisation and precipitation reactions, with the former being a very common question in assessments. This lesson has been written for GCSE students (14 - 16 year olds)

An informative lesson presentation (37 slides) and associated question worksheet which looks at the key properties of alpha, beta and gamma radiation. Students are given key pieces of information during the lesson and are then challenged to use their knowledge of related topics such as atomic structure and waves to complete the information table about the types of radiation. By the end of the lesson, students will be able to compare the types of radiation on form, charge, relative mass, penetrating power and equation symbols. Progress checks have been written into the lesson at regular intervals so that students can constantly assess their understanding. This lesson has been written for GCSE students (14 - 16 year olds in the UK).

This is a concise REVISION lesson that contains an engaging powerpoint (43 slides) and associated worksheets. The lesson uses a range of activities which include exam questions (with displayed answers), differentiated tasks and quiz competitions to engage students whilst they assess their knowledge of the content that is found within topic P8 (Space Physics) of the AQA 9-1 GCSE Physics specification. The following sub-topics in the specification are covered in this lesson: Our Solar System The life cycle of a star Natural satellites Red-shift This lesson can be used throughout the duration of the GCSE course, as an end of topic revision lesson or as a lesson in the lead up to mocks or the actual GCSE exams

This engaging lesson looks at the structure of the quaternary protein, haemoglobin, and describes its role with red blood cells in the transport of oxygen. The PowerPoint has been designed to cover the first part of point 3.4.1 of the AQA A-level Biology specification and explains how the cooperative nature of binding results in a loading of each molecule with 4 oxygen molecules and describes how it is unloaded at the respiring cells too. The lesson begins with a version of the quiz show Pointless to introduce haemotology as the study of the blood conditions. Students are told that haemoglobin has a quaternary structure and are challenged to use their prior knowledge of biological molecules to determine what this means for the protein. They will learn that each of the 4 polypeptide chains contains a haem group with an iron ion attached and that it is this group which has a high affinity for oxygen. Time is taken to discuss how this protein must be able to load (and unload) oxygen as well as transport the molecules to the respiring tissues. Students will plot the oxyhaemoglobin dissociation curve and the S-shaped curve is used to encourage discussions about the ease with which haemoglobin loads each molecule. Students will learn that a conformational change upon binding of the first oxygen leads to it being easier to bind future oxygens and that this is known as cooperative binding. This lesson has been written to tie in with the other uploaded lesson on the Bohr effect.

This fully-resourced lesson looks at the structures that make up the gross anatomy of the heart and also covers the calculation of cardiac ouput. The engaging and detailed PowerPoint and accompanying resources have been designed to cover the 4th part of point 3.4.1 of the AQA A-level Biology specification which states that students should be able to describe the gross structure of the human heart and be able to use the equation stroke volume x heart rate to calculate cardiac output. As this topic was covered at GCSE, the lesson has been planned to build on this prior knowledge whilst adding the key details which will enable students to provide A-level standard answers. The primary focus is the identification of the different structures of the heart but it also challenges their ability to recognise the important relationship to function. For example, time is taken to ensure that students can explain why the atrial walls are thinner than the ventricular walls and why the right ventricle has a thinner wall than the left ventricle. Opportunities are taken throughout the lesson to link this topic to the others found in topic 3.4.1 such as blood circulation and the cardiac cycle. Moving forwards, the students are introduced to the stroke volume and meet normative values for this and for resting heart rate. This will lead into the calculation for cardiac output and a series of questions are used to test their ability to apply this equation as well as percentage change.

This fully-resourced revision lesson consists of an engaging PowerPoint and differentiated resources which together challenge the students on their knowledge of the Key concepts in Physics, which are detailed in topic 1 of the Pearson Edexcel GCSE Physics specification . The content in this topic is particularly important because it will be assessed in both paper 1 and paper 2 of the terminal exams. The lesson has been filled with a wide range of activities which test the following specification points: Recall and use the SI units for physical quantities Recall and use multiples and sub-multiples of units Be able to convert between different units Use significant figures and standard form# To fall in line with the heavy mathematical content of this specification, the main task of the lesson challenges the students to carry out a range of calculations where they have to convert between units and leave their answers in a specific form.

This fully-resourced lesson explores the contributions of the chromosome mutations that arise during meiosis to genetic variation. The engaging PowerPoint and accompanying worksheets have been designed and written to cover the part of point 4.3 of the AQA A-level Biology specification which states that students should be able to describe how mutations in the numbers of chromosomes can arise spontaneously and significantly contribute to evolution. Over the course of the lesson, students will encounter a number of chromosome mutations but the main focus is chromosome non-disjunction and they will learn that this can result in Down, Turner’s and Klinefelter’s syndromes. Students are guided through a description of the formation of gametes and zygotes with abnormal numbers of chromosomes before being challenged to describe the formation of a zygote with Turner’s syndrome. The key aspects of meiosis, which are taught in a future lesson, are introduced and related to the lead up to the change in chromosome number. Inversion, translocation, duplication and deletion are also introduced and links are made to other topics such as regulatory sequences and gene expression.

This is a fully-resourced lesson which uses exam-style questions, engaging quiz competitions, quick tasks and discussion points to challenge students on their understanding of the content of topics P1 - P6, that will assessed on PAPER 5. It has been specifically designed for students on the Edexcel GCSE Combined Science course who will be taking the FOUNDATION TIER examinations but is also suitable for students taking the higher tier who need to ensure that the fundamentals are known and understood. The lesson has been written to cover as many specification points as possible but the following sub-topics have been given particular attention: Factors affecting thinking and braking distance The 7 recall and apply equations tested in PAPER 5 The units associated with the physical factors challenged in PAPER 5 Recognising the motions represented by different motions on velocity-time graphs Using a velocity-time graph to calculate acceleration Resultant forces Sound waves as longitudinal waves The electromagnetic waves Using significant figures and standard form The relative charges and masses of the particles in an atom Recognising isotopes Using the half-life of radioactive isotopes The development of the atomic model In order to maintain challenge whilst ensuring that all abilities can access the questions, the majority of the tasks have been differentiated and students can ask for extra support when they are unable to begin a question. Step-by-step guides have also been incorporated into the lesson to walk through students through some of the more difficult concepts such as half-life calculations. Due to the extensiveness of this revision lesson, it is estimated that it will take in excess of 3 teaching hours to complete the tasks and therefore this can be used at different points throughout the course as well as acting as a final revision before the PAPER 5 exam.

An engaging lesson presentation (95 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within TOPIC 4 (Chemical changes) of the AQA GCSE Chemistry specification (specification point C4.4) The topics that are tested within the lesson include: Reactivity series Extraction of metals and reduction Oxidation and reduction in terms of electrons Reactions of metals with acids Neutralisations Titrations Electrolysis Half equations Students will be engaged through the numerous activities including quiz rounds like “It’s time for ACTION” and “Number CRAZY” whilst crucially being able to recognise those areas which need further attention

A detailed lesson presentation (37 slides) and associated worksheets that guide students through the DNA sequencing method called pyrosequencing. The lesson focusses on the numerous enzymes and substrates which are involved in the cascade of events which eventually leads to the production of light when the conversion from luciferin to oxyluciferin occurs. A step by step guide is used to show the students how these events occur and the different outcomes are explored. There are regular progress checks throughout the lesson so that students can assess their understanding of this topic and the links to similar topics. This lesson has been designed for A-level students and above

An engaging lesson presentation (63 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within the Biology unit B7 (Ecology) of the AQA GCSE Combined Science specification (specification unit B4.7). The topics that are tested within the lesson include: Communities Abiotic factors Biotic factors Levels of organisation Recycling materials Deforestation Global warming Students will be engaged through the numerous activities including quiz rounds like “Number CRAZY" whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (70 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within the Chemistry unit C1 (Atomic structure and the Periodic Table) of the AQA GCSE Combined Science specification (specification unit C5.1). The topics that are tested within the lesson include: Mixtures Development of the model of the atom The subatomic particles Electronic structure The periodic table Metals and non-metals Group 0 Group 1 Group 7 Students will be engaged through the numerous activities including quiz rounds like “UNLOCK the safe" whilst crucially being able to recognise those areas which need further attention