Isotopes - a complete KS4 / GCSE lesson Lesson objectives: * Understand atomic structure. * Know what isotopes, mass number, and atomic number are. * Describe nuclei of different atoms using mass number and atomic number in the form: X superscript m subscript p. * Use atomic number and mass number to calculate the number of protons, electrons and neutrons in an atom. * Draw the structures of specific atoms. The lesson contains: * Notes to help the teacher. * Help sheet (can be given to all students, or to only those who the plenary shows found the lesson difficult, or to students who missed the lesson). * Homework sheet with answers (you choose whether your learners need to do it). * Starter - picture puzzle. * Simple task where students self-assess themselves against each objective * Big question to get students thinking. * Scientific literacy. * Revision game - played in small teams - all answers are provided. * Questions – all answers are provided. * Gap fill activities - various, with answers. * Theory slides (carefully sculpted and interactive to avoid ‘death by powerpoint’) * Video clip link (carefully selected – saves you time searching the internet). * Plenary assessment quiz. * Student self-assessment versus objectives activity. Waste no more of your precious time searching, buy now! This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. History of the atom and the discovery of the nucleus. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations 5. Activity and half life 6 to 14 Please see this power point for the rest of the list. Thank you, and happy teaching! Yours, Barclayfox.

A complete / full / ready to go AS/A level Physics lesson. It contains: Notes to help the teacher. Title and lesson objectives (see below). SI fundamental units activity. Questions with answers. Many numerical Questions with FULLY WORKED OUT answers. Definitions… Theory slides Homework (simple research) Video link (very cool) Assessment activity / plenary quiz Student self assessment versus objectives activity. Lesson objectives: * Explain what electric current is. * Define current, Amp and the Coulomb. * Understand and use the equation for charge. It also covers 7 Fundamental SI units. Please buy this lesson and leave positive feedback. Thank you for your time Barclayfox.

A complete ’ AS / A level Physics lesson on “Physical quantities and units”. Lesson objectives: * Explain that some physical quantities consist of a numerical magnitude and a unit. * Correctly use important units. * Derive units e.g. units of Force, Energy etc Activities this lesson contains: Notes to help the teacher. Starter task - picture puzzle. Literacy / SPaG Questions (with answers) Boggle game Gap fill Quiz questions with answers. Etc All answers are provided to make things easy for you. As science teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by ‘Barclayfox’ once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all my resources. I hope you will purchase this excellent lesson and please leave positive feedback. This lesson is part of a series, and you may wish to buy others from the series: 1. Physical quantities and units. 2. Prefixes and making estimates. 3. Scalar and vector quantities, resultants and resolving. 4. More on vectors – resultants and resolving. 5. Definitions in kinematics. 6. DT & VT graphs of motion. 7. Constant acceleration (SUVAT) equations. 8. Free fall. 9. Measurement of g. Thank you for your time. Yours, Barclayfox.

A complete, and ready to deliver, high quality KS4 / GCSE lesson from Barclayfox, no work required! Can be used by the teacher or for home learning - the Powerpoint easily navigates you thro’ the lesson even if you have not had time to review it before the lesson! Lesson objectives: - Understand what “nuclei” and “radioactivity” and “decay”etc mean. - Explain and understand “half life”. - Use radioactive decay graphs to find half life. - Use maths / numbers to find half life. The lesson contains: Animation (unique). Differentiated activity sheets (HA and MA/LA). Activity sheet answers. Notes to help the teacher. Starter task where students self-assess themselves against each objective. Scientific literacy activities. Homework (capable groups could do this in class). Questions (lots and lots) – all answers are provided. Paired work activities with answers. Gap fills Theory slides (minimal and carefully sculpted – not ‘death by powerpoint’) Video clip links x 2 (carefully selected – this alone can easily save you 20+ minutes). Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt BONUS materials: A ppt for students to go on your VLE / shared area. A short version of the master lesson. Don’t waste any more time searching, you’ve found an excellent lesson - buy it now! Thank you for your time, happy teaching. Yours, Barclayfox.

A complete and ready to deliver KS3 lesson. Lesson objectives: * Explain that radioactive elements are unstable and emit alpha or beta particles when they change into other elements. * Explain what happens to the nucleus during alpha decay and beta decay and gamma decay. * Successfully write decay equations / nuclear equations. This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter – activity sheet (built into this powerpoint just print this one slide for each student, or project it) * Starter - simple task where students self-assess themselves against the objectives. * Activity sheet - built into this powerpoint just print this one slide for each student - ore project it. * Gap fill activity - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Physical model build activity - various colours of plasticine are required. * Kinaesthetic activity (as above) – to aid recall. * Play ball * Paired work activities – answers are provided. * Plenary formative/summative assessment quiz / activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. You’ve found what you need, waste no more of your valuable time! This lesson is part of a series, and you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. Atoms, radiation and the discovery of the nucleus. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations (THIS LESSON) 5. Activity and half life 6. Activity practicals 7. Dangers and precautions 8. Nuclear radiation in medicine (uses in medicine) 9 to 13. Etc etc please search for “Barclayfox” on TES. Happy teaching! Barclayfox.

Half life - complete KS4 lesson Lesson objectives: * Do a physical practical to deepen understanding of half life and decay. * Be able to plot and explain a decay curve. * Find half lives from a decay curves. half life half-life * Notes to help the teacher. * Starter - simple task where students self-assess themselves against the objectives. * Gap fill activity - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Up and about activity. * Theory slides (carefully sculpted, interspaced with learning activities, * Practical in groups – with scaffolding text and results table blank and expected results (as required) * Equipment list – to give to your technicians. * Kinaesthetic activity – to aid recall. * Differentiated questions with answers. * Play ball * Paired work activities – answers are provided. * Scientific literacy activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. Thank you, and happy teaching! Yours, Barclayfox.

A complete KS4 lesson. Fusion, fission, hydrogen, proton, repulsion, repel, nuclei. Lesson objectives: * Explain the difference between nuclear “fusion” and nuclear “fission”. * Explain why nuclear fusion needs high temperatures and pressures. *Explain why mankind is finding it hard to make a practical and profitable fusion power station - a sun here on earth!!! This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Help sheet (can be given to all, or only to those that the plenary shows found the lesson difficult, or given later to students who missed the lesson). * Starter – unscramble. * Matching task – answers are provided. * Unscramble the words race. * Gap fill activity - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Up and about activity. * Theory slides (carefully sculpted, interspaced with learning activities, * Video clip link (carefully selected – this alone can save you 20+ minutes of searching). * Play ball. * Paired work activities – answers are provided. * Scientific literacy activity. * Homework, you choose whether your learners need to do it (if a worksheet answers are provided). * Plenary formative/summative assessment quiz / activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as stand alone individual lessons you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. Atoms, radiation and the discovery of the nucleus. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations 5. Activity and half life 6. to 14 - see list in this powerpoint Thank you, and happy teaching! Yours, Barclayfox.

A complete and ready to deliver high quality GCSE lesson. This is a complete lesson from start to end, you do not need to spend many hours carefully planning, creating, resourcing and improving this lesson after each use. I have already spent those hours preparing this lesson for my students and improving it over many years. There is nothing to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * Describe the function of the parts of a nuclear power station. * Describe how this is different to using fossil fuels. * Discuss the advantages & disadvantages of nuclear power. This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter - simple task where students self-assess themselves against the objectives. * Activity sheets “Big Picture” - built into this powerpoint just print these slides as described. * Gap fill activity - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Up and about activity - during “Big Picture” activity. * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Play ball. * Paired work activities – answers are provided. * Scientific literacy activity. * Plenary formative/summative assessment quiz / activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. As teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by “Barclayfox” once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. This lesson is part of a series, and you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. Atoms, radiation and the discovery of the nucleus. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations 5. Activity and half life 6. Activity and half life practicals 7. Dangers and precautions 8. Nuclear radiation in medicine (uses in medicine) 9. Nuclear fission and chain reactions (nuclear power). 10. Electricity from nuclear power. 11. Nuclear Fusion and our sun. 12. Nuclear issues including waste 13. Prediction, theory acceptance and peer review. 14. Revision Thank you, and happy teaching! Yours, Barclayfox.

A complete, 3 tier differentiated KS4 lesson This is a complete lesson from start to end, with Differentiated resources and a Practical, There is nothing for you to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * I understand what momentum is a measure of. * I can explain that momentum is a vector. * I am able to calculate momentum in lots of scenarios. * I can rearrange and use the momentum equation. In short this lesson contains: theory, differentiated worksheet with all answers, and a practical activity - for full details please see below. * Notes to help the teacher. * Starter - choice of two. * Short Starter - simple task where students self-assess against the objectives. * Activity sheet - Differentiated with ANSWERS. * Quiz with answers. * Questions – all answers are provided, students get lots of practice. * Up and about activity * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Differentiated questions with answers. * Paired work activities T/P/S – answers are provided. * Homework * Scientific literacy activity. * Optional Practical Activity. * Plenary formative/summative assessment quiz / activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all my series are bundled) 1. Momentum. 2. Conservation of momentum, collisions, elastic and inelastic events. 3. Momentum, impulse, crumple zones and safety. Thank you, and happy teaching! Yours, Barclayfox. Search words: Momentum, momentum, momentum, miss spellings: mementum, momenyum, monentum, mimentum, mmomentum, momentum, what is momentum, mass, velocity, inertia, physics, p = m x v, p=mv, p=mxv, kgm/s, kg m/s, momentum, momentum, vector quantity, vector, mom, p=, units, AQA, edexcel, WJEC, OCR, Momentum, GCSE, N5, 10th grade 10 grade, grade 10, grade 9, 9th grade, 9 grade, 8th grade, 8 grade, grade 8.

KS4 F=Ma, Newton’s 2nd Law. There is nothing for you to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * I can draw “free body diagrams” * I can calculate the resultant force on an object. * I can rearrange and use F = M a * I can explain why an object travelling around a corner at constant speed is accelerating. * Understand what inertia is This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter - unscramble the words. * Starter - simple task where students self-assess against the objectives. * Activity sheet - differentiated and unique, all answers are provided. * Gap fill activity - all answers are provided. * Questions – all answers are provided. * Differentiated questions – all answers are provided. * Peer marking * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Play ball. * Video clip link (carefully selected – this alone can save you 20+ minutes of searching). * Paired work activities – all answers are provided. * Scientific Literacy activity. * Scientific Numeracy via the many questions. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. As teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by “Barclayfox” once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundles – contain some or even all lessons (if available, not all my series are bundled) 1. Vectors and scalars. 2. Forces between objects (contact / non-contact and Newton’s 3rd law). 3. Resultant forces – part 1 4. Resultant forces – part 2 5 to 12 - please see list in this powerpoint Thank you, and happy teaching! Yours, Barclayfox.

A complete, and ready to deliver, high quality KS4 / GCSE lesson. (USA grades 9, 10 and 11) There is nothing for you to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * Know the forces that oppose the driving force of a vehicle. * Define thinking distance, braking distance and stopping distance. * Describe factors affecting thinking distance and braking distance. * Understand why doubling speed doubles thinking distance but more than doubles braking distance. * Use the braking distance equation successfully. This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter - recall quiz. * Starter - simple task where students self-assess against the objectives. * Practical experiment. * Peer marking * Self marking * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Questions – all answers are provided. * Differentiated questions - all answers are provided. * Play ball. * Video clip link (carefully selected – this alone can save you 20+ minutes of searching). * Paired work activities – all answers are provided. * Scientific Literacy activity. * Scientific Numeracy activity * SMSC * Plenary formative/summative assessment questions. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. As teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by “Barclayfox” once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. Thank you, and happy teaching! Yours, Barclayfox.

This is a revision lesson that makes use of many games, activities, work sheets and loop puzzles to revise the following:- Radioactivity, radiation, atoms, isotopes, activity, half life, alpha, beta, gamma, the discovery of the nucleus, changes in the nucleus, alpha scattering. Rutherford, how our model of the atom has changed over time, radiation uses and dangers, nuclear radiation in medicine, fission and fusion. Excellent tried and tested resources which are ready to be used, and some of which are differentiated. Answer sheets are also provided to allow student independence and peer or self assessment. As teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by “Barclayfox” once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. Atoms, radiation and the discovery of the nucleus. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations 5. Activity and half life 6. Activity and half life practicals 7. Dangers and precautions 8. Nuclear radiation in medicine (uses in medicine) 9. Nuclear fission and chain reactions (nuclear power). 10. Electricity from nuclear power. 11. Nuclear Fusion and our sun. 12. Nuclear issues including waste 13. Prediction, theory acceptance and peer review 14. Revision Lesson - THIS ONE Thank you, and happy teaching! Yours, Barclayfox.

A complete, KS4 lesson For USA - this lesson is for use between 8th to 10th grade. There is nothing for you to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * Understand the difference between mass and weight. * Understand the role that gravity plays in this difference. * Be able to successfully calculate weight and mass. This carefully crafted lesson is over 30 slides long, and is full of learning activities as below: * Starter - simple task where students self-assess against the objectives. * Quiz with answers. * Questions – all answers are provided. * Differentiated questions – all answers are provided. * Peer marking * Self marking * Theory slides (carefully sculpted, interspaced with learning activities, * Play ball. * Video clip link (carefully selected – this alone can save you 20+ minutes of searching). * Paired work activities – all answers are provided. * Scientific Literacy activity. * Scientific Numeracy activity * Plenary formative/summative assessment quiz / activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. * Extension activities – just in case additional activities are required. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundles – contain 3 or more of these lessons at a discounted price (however please note not all my series are bundled). 1. Vectors and scalars. 2. Forces between objects (contact / non-contact and Newton’s 3rd law). 3. Forces and Newton’s third law (N3L). 4. Resultant forces, free body diagrams. 5. Forces and acceleration F=Ma 6. Required practical F=Ma 7 to 12 - please see list in this powerpoint Thank you, and happy teaching! Yours, Barclayfox.

A complete, and ready to deliver, KS4 For USA - this lesson is for use between 8th to 10th grade. Lesson objectives: * Describe the difference between contact forces & non-contact forces. * State examples of non-contact forces and relate them to real life scenarios. * Describe what a force field is and what affects it. * Understand how the strength of force is represented and how it changes with distance. This carefully crafted lesson is over 30 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter - simple task where students self-assess against the objectives. * Activity sheet (unique) - differentiated HA and LA and all answers are in the powerpoint. * Practical / student experiment. * Sorting activity * Gap fill activity on the activity sheet - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Peer marking / Self marking opportunities * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Play ball. * Paired work activities – all answers are provided. * Homework * Scientific Literacy activity. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. * Extension activities - only for use if required. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundles – contain 3 or more of these lessons at a discounted price (however please note not all my series are bundled). 1. Vectors and scalars. 2. Forces between objects, contact and non-contact forces. 3. Forces and Newton’s third law (N3L). 4 to 12 - please see list in this powerpoint Thank you, and happy teaching! Yours, Barclayfox.

A complete and ready to deliver high quality GCSE lesson from Barclayfox. This is a complete lesson from start to end, you do not need to spend many hours carefully planning, creating, resourcing and improving this lesson after each use. I have already spent those hours preparing this lesson for my students and improving it over many years. There is nothing to do but give it a quick look through and familiarise yourself with it. Lesson objectives: * Explain key words and phrases including “hypothesis”, “peer review”, “theory” and the “prediction”. * Explain the scientific method and how new hypotheses are validated by other scientists before they are accepted. * Understand trial by evidence. This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter 1 - unscramble the words. * Starter 2 - simple task where students self-assess themselves against the objectives. * Matching task - answers are provided. * Activity sheet - built into the powerpoint simply print this slide for each student. * Unscramble the words race. * Sequencing activity. * Gap fill activity - all answers are provided. * Quiz with answers. * Questions – all answers are provided. * Up and about activity * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Differentiated questions with answers (ACTIVITY SHEETS built into powerpoint simply print them). * Play ball. * Paired work activities – answers are provided. * Scientific literacy activity. * Homework * Plenary is the activity sheets. * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. As teachers we all work ridiculously long hours each week. Give yourself a break, spend some life with your wife / husband / children / friends / family by purchasing more lessons created by “Barclayfox” once they appear on TES. Please note: when searching for resources please type barclayfox into the search box/engine and it will show you all our resources. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundle – contains all lessons (if available not all series are bundled) 1. History of the atom, discovery of the nucleus, Thompson and Rutherford. 2. Isotopes and Mass number and Atomic number. 3. Alpha, Beta and Gamma – ionising radiation. 4. Changes in the nucleus – decay equations 5-14. See this powerpoint for the list. Thank you, and happy teaching, Barclayfox.

A complete, and ready to deliver, KS4 lesson For USA - this lesson is for use between 8th and 10th grade. There is nothing for you to do but give it a quick look through and familiarise yourself with it. Lesson outcomes, students will be able to: * Draw “free body diagrams”. * Explain Newton’s first law. * Explain Newton’s third law. * Successfully calculate “resultant” forces. This carefully crafted lesson is over 40 slides long, and is full of learning activities as below: * Notes to help the teacher. * Starter - simple task where students self-assess against the objectives. * Activity sheet (unique) - simply print this slide for each student. * Activity sheet - answers. * Gap fill activity - all answers are provided. * Quiz with answers - using mini whiteboards (if available) * Questions – all answers are provided. * Peer or self marking * Theory slides (carefully sculpted, interspaced with learning activities, not ‘death by powerpoint’). * Play ball. * Paired work activities – all answers are provided. * Homework * Scientific Literacy activity. * Scientific Numeracy activity * Student self-assessment versus objectives activity – so learners can judge for themselves how much they have learnt. Please purchase this lesson, and leave a positive review. This lesson is part of a series, whilst they all work very well as standalone individual lessons you may wish to buy others from the series: 0. Bundles – contain 3 or more of these lessons at a discounted price (however please note not all my series are bundled). 1. Vectors and scalars. 2. Forces between objects (contact / non-contact and Newton’s 3rd law). 3. Forces and Newton’s third law (N3L). 4. Resultant forces, free body diagrams - This Lesson. 5. Forces and acceleration F=Ma 6. Required practical F=Ma 7 to 12 - please see list in this powerpoint Thank you, and happy teaching! Yours, Barclayfox.

This lesson is 4 in a series of 5 STARTER Pupils become engaged in the lessons by thinking/working in pairs to solve a picture puzzle to find out what today’s lesson is about. After revealing the title and lesson outcomes students self assess against their current understanding of this topic. Next there is a scientific literacy Q and A activity to ensure all students learn the key words required to understand this lesson. MAIN Homework is set and then dispersion is demonstrated by the teacher, this is an opportunity for differentiation as high ability groups can do a short practical. There is a Q and A activity to bring out the key points. MAIN Dispersion is linked to the colours in a rainbow and how a rainbow is created. The standard ROY G BIV mnemonic for remembering the spectrum is introduced. MAIN Students study a slide which shows the sun, an apple and a girl and asks them, how is it that the girl can see that the apple is red in colour? This leads to a discussion and the revealing of how some colours are absorbed and some reflected off the apple and into the girl’s eyes so that she sees the apple as red. This progresses further into what effect different colours of light has on the colours that we see when looking at objects. Students then apply their new understanding to complete an activity and peer mark their answers. MAIN Students complete a practical experiment to investigate the effect of coloured filters on the colours that they can see. Next they look at the three RGB primary colours and the effects of adding them together. PLENARY A quiz - peer marked - which uncovers how much they have learnt during the lesson. Students self assess their understanding of this topic now they have reached the end of the lesson, and compare it to their previously self-assessed understanding at the start of the lesson. Students who need further support set themselves homework. EXTENSION ACTIVITIES A variety of activities are provided just in case any of your groups requires them either this year or in future years. There is nothing for you to do but order the equipment for the class practical (simply hand your technician the printed off kit list.doc). Thank you for looking, your feedback is much appreciated! :) Lesson 4 in a series of 5. Happy teaching, Barclayfox.