A fully-resourced lesson which explores the photosynthesis reaction, focusing on where it takes place and the reactants and products of this chemical reaction. This lesson includes an engaging and detailed lesson presentation (45 slides), a summary task and a crossword which is used throughout the lesson. Students will already have a fair knowledge of this topic from KS3 so this lesson has been written to take that knowledge and push it forward. Key details are added throughout the lesson such as how the reactants enter the plant by osmosis and diffusion and also how water travels from the roots to the leaves in the xylem vessel. An engaging competition runs during the lesson called “LIGHT up the crossword” and this enables the key terms of the topic to be stored in one place. There are two main written tasks during the lesson which challenge the students to summarise the reaction using all that they have learnt and also to state the different uses of glucose. The lesson has been linked to related topics with understanding checks written in at regular intervals so this knowledge can be assessed. This lesson has been written for GCSE students but could be used with higher ability KS3 students who want to learn more than they currently know

A fast paced lesson which focuses on the equation for work done and using this in calculations. The lesson includes a student-led lesson presentation and a question worksheet which together explore the different problems that students can encounter when attempting these questions and therefore acts to eliminate any errors. There is a big mathematical element to the lesson which includes the need to rearrange formula, understand standard form and to convert between units as this is a common task in the latest exams. Students will learn that some questions involve the use of two equations as they are needed to move from a mass to a force (weight) before applying the work done equation. The last part of the lesson looks at how work done is involved in the calculation for power. This lesson has been designed for GCSE students.

An engaging lesson which uses a range of tasks to ensure that students understand the meaning of the term, background radiation, and are able to name a number of sources of this type of radiation. The start of the lesson focuses on the definition of background radiation and the idea that is all around us is revisited again a number of times during the lesson. Through a range of activities and discussion points, students will meet the different sources as well as the % that they each contribute. It seemed appropriate to challenge some mathematical and scientific skills at this point so students will represent the data in a pie chart form. Related topics are discussed such as Chernobyl. Progress checks are written into the lesson at regular intervals so the students can constantly assess their understanding. This lesson is designed for GCSE students.

An engaging lesson presentation which looks at the organs of the human endocrine system, the hormones they release and briefly considers some of their functions. This lesson has been designed for GCSE students but could be used with younger students at KS3 who are studying the different organ systems in the human body. The lesson begins by looking at the meaning of endo and crine so that students recognise that this is also known as the hormonal system and the hormones are always released directly into the blood. A number of quick competitions have been written into the lesson to maintain engagement and provide opportunities to check understanding in an alternative way to simple questions. This first of these games is called “Any sign of the ENDOCRINE”, where students are challenged to pick the endocrine gland out of a selection of three and then come to board to point to where it would be found on a body outline. The students have to label the diagram on the worksheet included in this lesson and then allocate hormones to 5 of the 6 glands. Time is taken to focus on the pituitary gland and three of the hormones that it releases in FSH, LH and TSH because these relate to the menstrual cycle and the thyroid gland. The final part of the lesson involves students being shown an acronym, HBGT, that they can use in longer answers to ensure that they mention the hormone, blood, the gland that releases the hormone and the target tissue.

This lesson has been designed to enable students to recognise the key stages in the formation of the early atmosphere and to also show how today’s atmosphere was formed. The lesson has been primarily designed for GCSE students but is suitable for higher ability younger students who perhaps are studying the Earth and its formation. The lesson begins by checking that the students know the percentages of the different gases found in the modern day atmosphere. Some time is taken to check on their mathematical skills by challenging them to produce a pie chart to represent these different percentages. Students are then asked to predict how they think the percentage of oxygen, carbon dioxide and water vapour would have differed from now to the early atmosphere. The key steps in the formation are then introduced and critical points discussed. Students will learn about the volcanic activity, formation of the oceans and photosynthesis as crucial points in the change to the percentages of those three gases. A number of progress checks are written into the lesson, which check knowledge from this lesson and related topics such as the reaction of acids and gases.

This revision resource has been designed to include a range of activities that will engage the students whilst they assess their understanding of the content of topic C12 of the CIE IGCSE Combined Science specification for examination in June and November 2020 and 2021. Exam questions, quick tasks and quiz competitions such as “Are you on FORM” will challenge the students on their recall of the content as well as their ability to apply this knowledge. The lesson was written to cover as much of the content as possible, but the following topics have received particular attention: �� The conditions needed for cracking • Alkanes and alkenes as the products of cracking • Alkanes as saturated hydrocarbons with single covalent bonds between their atoms • Alkenes as unsaturated hydrocarbons with one double covalent bond • Testing between saturated and unsaturated hydrocarbons using aqueous bromine solution • The fractional distillation of crude oil • The uses of the fractions This resource contains an engaging PowerPoint (51 slides) and associated worksheets and is ideal for use at the end of this topic or in the lead up to mocks or the actual terminal exams

This revision resource has been designed to include a range of activities that will engage the students whilst they assess their understanding of the content of topic C2 (Experimental techniques) of the CIE IGCSE Combined Science specification for examination in June and November 2020 and 2021. Exam questions, quick tasks and quiz competitions such as “SEPARATE the FACT from the FICTION” will challenge the students on their recall of the content as well as their ability to apply this knowledge. The lesson was written to cover as much of the content as possible, but the following topics have received particular attention: • Simple distillation and fractional distillation Choosing appropriate apparatus Experimental and investigational skills Crystallisation and filtration Paper chromatography Calculating the retention factor This resource contains an engaging PowerPoint (45 slides) and associated worksheets and is ideal for use at the end of this topic or in the lead up to mocks or the actual terminal exams

This engaging and detailed lesson has been written to cover the content of points 7.6 & 7.7 (The hormonal and barrier methods of contraception) as detailed in the Edexcel GCSE Biology & Combined Science specifications. This is a topic which can be difficult to teach due to the awkwardness of a class or students believing that they already know all of the information without really knowing the detail which is laid out in the specification. With this in mind, a wide range of activities have been included in the lesson to maintain motivation whilst ensuring that this important detail is covered. Students will learn about a range of hormonal methods including oral contraceptives and progesterone patches and how these methods influence the menstrual cycle. Barrier methods are also discussed and their effectiveness considered. Time is taken to look at alternative methods such as abstaining from sexual intercourse before and after ovulation and sterilisation. Due to the clear link to the topic of the menstrual cycle, previous knowledge checks are written into the lesson and challenge the students on their knowledge of FSH, LH, oestrogen and progesterone. There are also mathematical skills check so that students are prepared for the added mathematical element in this course. This lesson has been written for GCSE-aged students who are studying on the Edexcel GCSE Biology or Combined Science courses but is suitable for younger students who are looking at contraception in their Science lessons

This lesson has been designed to cover the content in specification point 17.3 (Mitosis) which is part of topic 17 (Inheritance) of the CIE IGCSE Biology specification. A wide range of activities have been written into the lesson to motivate and engage the students whilst ensuring that the following content of both the Core & Supplement sections are covered in detail. The duplication of chromosomes before mitosis Mitosis is a form of division that results in genetically identical cells The important roles of mitosis for living organisms Stem cells use mitosis before differentiation to produce specialised cells Understanding checks have been included in the lesson at regular points to allow the students to assess their understanding as well as previous knowledge checks to topics like organelles in animal and plant cells. This lesson has been designed for GCSE-aged students but is suitable for older students who are studying mitosis at A-level and need to recall the key points

This lesson has been designed to cover the higher tier content of specification point 5.3.4 (Hormones in human reproduction) which is found in topic 5 of the AQA GCSE Biology & Combined Science specifications. A wide range of activities will engage and motivate the students whilst the content is covered in detail and understanding checks are included at regular points to enable the students to self-assess their new found knowledge. The following Biology is covered in this lesson: Reproductive hormones in the development of secondary sexual characteristics The role of testosterone as the main male reproductive hormone The role of oestrogen and progesterone in the repair and maintenance of the uterus lining The role of FSH and LH in the maturation of an egg and ovulation The interaction of these four hormones in the control of the menstrual cycle The final part of the lesson involves a number of questions where the students are challenged to apply their knowledge to unfamiliar situations This lesson has been designed for GCSE-aged students who are taking the AQA GCSE Biology or Combined Science course but it is also suitable for younger students who are looking into this topic as part of the reproduction module

This resource has been designed to cover the higher tier content of specification point 7.8 as detailed in the Edexcel GCSE Biology & Combined Science specifications. The lesson takes the format of a day at a fertility clinic and students will see how three couples, who are at different stages of their currently unsuccessful journey to getting pregnant, are advised and the treatments that could be on offer to them. Discussion points are included throughout the lesson to encourage the students to talk about the Biology and to allow any misconceptions to be addressed if and when they arise. In addition, previous knowledge checks are regular so that the links between this topic and earlier ones such as the hormones in the menstrual cycle and contraception can be made. Students will be introduced to the abbreviation ART before learning how clomifene is used to treat infertility in women do not ovulate. Time is taken to explore alternative fertility drugs and students are challenged to explain why FSH and LH would be the reproductive hormones contained in these substances. The main focus of the lesson is IVF treatment and the main task culminates with students gaining a number of key points in the for and against argument before being challenged to continue this as a set homework in the form of an evaluation. Quiz competitions are used to introduce key terms in a fun and memorable way and the final task is a mathematical skills check where students will be able to compare the high number of multiple births that are associated with this treatment as compared to the number from natural births. This lesson has been designed for students studying the Edexcel GCSE Biology or Combined Science course but is also suitable for older students who are looking at this topic

This engaging REVISION lesson has been designed to cover the content of topic 3 (Enzymes) of the CIE International A-level Biology specification. A wide range of activities have been written into the lesson to engage the students whilst they assess their understanding of the topic content. All of the exam questions contain detailed answers which students can use to identify missed marks and quiz competitions are used, like FROM NUMBERS 2 LETTERS (shown in the cover image) to recall key concepts and check on the finer details. The lesson has been planned to cover as much of the specification content as possible but the following sub-topics have received particular attention: Enzymes as globular proteins that act as biological catalysts Formation of the enzyme-substrate complex The lock and key theory and induced-fit hypothesis Competitive and non-competitive inhibitors The Michaelis-Menten constant The effect of changes in pH and temperature on the tertiary structure of the enzymes The immobilisation of enzymes using alginate Time has been taken in the design to ensure that links to other topics are made. For example, when checking the knowledge of the denaturation of enzymes due to pH and temperature, the bonds found in the tertiary structure are recalled and considered in depth.

This fully-resourced REVISION LESSON has been designed to provide the students with numerous opportunities to assess their understanding of the content of topic 12 (Energy and respiration) of the CIE International A-level Biology specification. The importance of this metabolic reaction is obvious and this is reflected in the volume of questions in the terminal exams which require an in depth knowledge of the stages of both aerobic and anaerobic respiration. The lesson contains a wide range of activities that cover the following points of the specification: Glycolysis as a stage of aerobic and anaerobic respiration The use and production of ATP through respiration Anaerobic respiration in mammalian muscle tissue The stages of aerobic respiration that occur in the mitochondrial matrix Oxidative phosphorylation The use of respirometers Calculating the respiratory quotient value for different substrates Revision lessons which cover the other topics of the specification are also uploaded and tie in well with this lesson.

This fully-resourced lesson explores the inheritance of genetic characteristics that involve multiple alleles and codominant alleles. The engaging and detailed PowerPoint and differentiated worksheets have been designed to cover the part of point 16.2 (b) of the CIE International A-level Biology specification which states that students should be able to use genetic diagrams to solve problems which involve codominance and multiple alleles. The main part of the lesson uses the inheritance of the ABO blood groups to demonstrate how the three alleles that are found at the locus on chromosome 9 and the codominance of the A and B alleles affects the phenotypes. Students are guided through the construction of the different genotypes and how to interpret the resulting phenotype. They are challenged to use a partially completed pedigree tree to determine the blood group for some of the family members and to explain how they came to their answer. To further challenge their ability to apply their knowledge, a series of questions about multiple alleles and codominance in animals that are not humans are used. All of the questions are followed by clear, visual mark schemes to allow the students to assess their progress and address any misconceptions

This fully-resourced REVISION lesson has been designed to enable the students to challenge their knowledge of the content of topic 16 (Inherited change) of the CIE A-level Biology specification. The engaging PowerPoint and accompanying differentiated worksheets will motivate the students whilst they assess their understanding of the content and identify any areas which may require further attention. The wide range of activities have been written to cover as much of the topic as possible but the following specification points have been given particular focus: Homologous pairs of chromosomes The meanings of haploid and diploid The behaviour of chromosomes in meiosis Crossing over and random assortment as causes of genetic variation The use of key genetic terminology The use of genetic diagrams to solve problems including autosomal and sex-linkage, dihybrid inheritance and gene interactions The use of the chi-squared test Gene mutations Genetic control of protein production in prokaryotes Gibberellins and how they cause the breakdown of DELLA proteins Due to the extensiveness of this resource, it is likely that it will take a number of lessons to go through all of the activities