A fully-resourced lesson that looks at the different sampling methods that can be used to estimate the populations of animals and plants in a habitat and to analyse how their distribution is affected, The lesson includes a detailed and engaging lesson presentation (56 slides) and differentiated worksheets so that students of different abilities are challenged and can access the work. The lesson begins by looking at the use of a quadrat to estimate the population of plants in a habitat. There is a focus on the mathematical calculations associated with the method and students are given hints and worked examples so that any common misconceptions are addressed. Moving forwards, students are introduced to the capture-mark-recapture technique to sample animals. The rest of the lesson looks at alternative pieces of apparatus, such as the sweep net, and discusses situations when these would be used. This lesson has been written for GCSE students (14 - 16 year olds in the UK) but is appropriate for both younger students who are learning about ecology and also for A-level students who need a recap on this topic.

A fully resourced revision lesson which uses a range of exam questions (with explained answers), quick tasks and quiz competitions to enable the students to assess their understanding of the topics found within module 3 (Exchange and transport) of the OCR A-level Biology specification. The topics tested within this lesson include: Exchange surfaces Mammalian gaseous exchange system Tissues in the gaseous exchange system Transport in animals Blood vessels Exchange at the capillaries ECG Transport of oxygen Transport in plants Transport tissues Movement of water through plants Transpiration Translocation Student will enjoy the range of tasks and quiz rounds whilst crucially being able to recognise any areas which require further attention

An engaging lesson presentation (43 slides) that uses exam questions, quick tasks and competitions to enable students to assess their understanding of the topics within module 6.1.3 of the OCR A-Level Biology A specification. All of the exam questions have displayed mark schemes and explanations so that students can recognise any errors or misconceptions. Competition rounds included in this lesson are "From numbers 2 letters" and "Is this SEQUENCED correctly".

This is a highly detailed and engaging lesson that covers the detail of the 2nd part of specification point 6.2.1 of the AQA A-level Biology specification which states that students should be able to describe the establishment of resting potential, the changes in membrane potential that lead to depolarisation and the importance of the refractory period. This topic is commonly assessed in the terminal exams so a lot of time has been taken to design this resource to include a wide range of activities that motivate the students whilst ensuring that the content is covered in the depth of detail that will allow them to have a real understanding. Interspersed within the activities are understanding checks and prior knowledge checks to enable the students to not only assess their progress against the current topic but also to challenge themselves on the links to earlier topics such as methods of movements across cell membranes and saltatory conduction. There are also a number of quiz competitions which are used to introduce key terms and values in a fun and memorable way and discussion points to encourage the students to consider why a particular process or mechanism occurs. Over the course of the lesson, the students will learn and discover how the movement of ions across the membrane causes the membrane potential to change. They will see how the resting potential is maintained through the use of the sodium/potassium pump and potassium ion leakage. There is a real focus on depolarisation to allow students to understand how generator potentials can combine and if the resulting depolarisation then exceeds the threshold potential, a full depolarisation will occur. At this point in the lesson students will discover how the all or nothing response explains that action potentials have the same magnitude and that instead a stronger stimulus is linked to an increase in the frequency of the transmission. The rest of the lesson challenges the students to apply their knowledge to explain how repolarisation and hyperpolarisation result and to suggest advantages of the refractory period for nerve cells. This lesson has been designed for students studying the AQA A-level Biology course and ties in nicely with other uploaded lessons on mammalian sensory receptors and the structures and functions of the neurones.

This is a fully-resourced lesson that explores the meaning of irradiation and contamination and challenges the students to make links to the different types of radiation in order to state which type of radiation is most dangerous outside of the body and inside the body. This lesson includes an engaging lesson presentation (28 slides) and a differentiated worksheet which gives assistance to those students who find the task of writing the letter difficult. The lesson has been written to include real life examples to try to make the subject matter more relevant to the students. Therefore, whilst meeting the term contamination, they will briefly read about the incident with Alexander Litvinenko in 2006 to understand how the radiation entered the body. Moving forwards, students will learn that there are examples of consensual contamination such as the injection of an isotope to act as a tracer. At this point of the lesson, links are made to the topic of decay and half-lives and students are challenged to pick an appropriate isotope based on the half-life and then to write a letter to the patient explaining why they made their choice. The remainder of the lesson challenges students to decide which type or types of radiation are most dangerous when an individual is irradiated or contaminated and to explain their answers. This type of progress check can be found throughout the lesson along with a number of quick competitions which act to maintain engagement as well as introduce new terms. This lesson has been written for GCSE aged students

This fully-resourced lesson is highly detailed and in combination with the uploaded lesson on the causes of diabetes type I and II, it covers all of specification point 6.4.2 of the AQA A-level Biology specification which states that students should be able to describe the homeostatic control of blood glucose concentration using negative feedback mechanisms that release insulin or glucagon. A wide range of activities will maintain motivation and engagement whilst the content is covered in detail to enable the students to explain how the receptors in the pancreas detect the concentration change and how the hormones attaching to receptor sites on the liver triggers a series of events in this effector organ. This is a topic which has a huge amount of difficult terminology so time is taken to look at all of the key words, especially those which begin with the letter G so students are able to use them accurately in the correct context. The action of adrenaline is also considered and linked to the breakdown of glycogen to glucose during glycogenolysis. This lesson has been written for students studying on the AQA A-level Biology course and ties in with the already mentioned lesson on diabetes but also with the other uploaded lessons on topic 6 such as nerve impulses and kidney function

An engaging lesson presentation (84 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 unit P5 (Forces) of the AQA GCSE Combined Science specification (specification point P6.5). The topics that are tested within the lesson include: Gravity Speed Velocity Acceleration Newton’s laws Forces and braking Momentum Conservation of momentum Students will be engaged through the numerous activities including quiz rounds like “Can you go the DISTANCE” whilst crucially being able to recognise those areas which need further attention

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 Chemistry unit C3 (Quantitative chemistry) of the AQA GCSE Combined Science specification (specification point C5.3). The lesson includes useful hints and tips to encourage success in assessments. For example, students are shown how to recognise whether to use Avogadro’s constant or the moles formula in a moles calculation question. The topics that are tested within the lesson include: Conservation of mass and balanced symbol equations Relative formula mass Mass changes when a reactant or product is a gas Moles Amounts of substances in equations Concentration of solutions Students will be engaged through the numerous activities including quiz rounds like “Number CRAZY” and “Are you on FORM” whilst crucially being able to recognise those areas which need further attention

A fully resourced revision lesson which uses a range of exam questions (with explained answers), quick tasks and quiz competitions to enable the students to assess their understanding of the topics found within module 6.1.2 (Patterns of inheritance) of the OCR A-level Biology A specification. The topics tested within this lesson include: Genetic variation Monogenic inheritance Dihybrid inheritance Multiple alleles Sex linkage Codominance Epistasis Using the chi-squared test Discontinuous and continuous variation The Hardy Weinberg principle Student will enjoy the range of tasks and quiz rounds whilst crucially being able to recognise any areas which require further attention

This fully-resourced lesson covers the content of the first part of specification point 6.2.2 of the AQA A-level Biology specification that states that students should be able to describe the detailed structure of a cholinergic synapse and a neuromuscular junction and be able to compare the transmission across both of these structures. The majority of the lesson uses the cholinergic synapse as the example but other neurotransmitters and drugs are considered so students are prepared to describe the differing effects on the synapse. The lesson begins by using a version of the WALL (as shown in the cover image) which asks the students to group 12 words into three groups of 4. Not only will this challenge their prior knowledge from topics earlier in this module but it will also lead to the discovery of four of the structures that are found in a synapse. Moving forwards, students are introduced to aectylcholine as the neurotransmitter involved at cholinergic synapses and they will start to add labels to the structures found in the pre-synaptic bulb. Time is taken to focus on certain structures such as the voltage gated channels as these types of channel were met previously when looking at the depolarisation of a neurone. There is plenty of challenge and discovery as students are pushed to explain why organelles like mitochondria would be found in large numbers in the bulb. With this process being a cascade of events, a bullet point format is used to ensure that the key content is taken in by the students and again key points like exocytosis and the action of acetylcholinesterase are discussed further. The next part of the lesson challenges the application aspect of the specification as students are introduced to unfamiliar situations in terms of synapses with new drugs like MDMA and are asked to work out and explain how these affect the nervous transmission. The final part of the lesson focuses on the NMJ and challenges the students to use the knowledge gained from earlier in the lesson to develop their understanding of these junctions. Time is taken to look at the structure of the sarcolemma to enable students to understand how the binding of the acetylcholine leads to the wave of depolarisation passing to the transverse tubules. Understanding checks and prior knowledge checks are included throughout the lesson so that students can not only assess their progress against the current topic but also see whether they can make links to earlier topics. This lesson has been designed for students studying the AQA A-level Biology course but could be used with very able GCSE students who are keen to develop their understanding of synapses over and above the small detail that is provided at that level. This lesson also ties in nicely with the other uploaded lessons from topic 6

This lesson describes the light-dependent reactions of photosynthesis, focusing on the link to the light-independent reactions. The detailed PowerPoint and accompanying resources have been designed to cover the details included in point 5.7 of the Edexcel A-level Biology specification and therefore describes how light energy is trapped by exciting electrons in chlorophyll and the role of these electrons in generating ATP, reducing NADP in photophosphorylation and producing oxygen through photolysis of water. This is a topic which students tend to find difficult so this lesson has been intricately planned to walk them through each of the key reactions in the light-dependent stage. Time is taken to describe the roles of the major protein complexes that are embedded in the thylakoid membrane and this includes the two photosystems, the proton pump and ATP synthase. A series of exam-style questions have been written that link to other biological topics in this course such as cell structure and membrane transport as well as application questions to challenge them to apply their understanding. Some of these resources have been differentiated to allow students of differing abilities to access the work and to be pushed at the same time. Students will learn that there are two pathways that the electron can take from PSI and at the completion of the two tasks which describe each of these pathways, they will understand how ATP is generated in non-cyclic and cyclic fashion. The final task of the lesson asks them to compare these two forms of photophosphorylation to check that they understand when photolysis is involved and reduced NADP is formed. Due to the detail included in this lesson, it is estimated that it will take in excess of 2.5 hours of allocated A-level teaching time to complete

This fully-resourced lesson describes the relationship between the structure of the chloroplast and its role in the overall reaction of photosynthesis. The detailed PowerPoint and accompanying resources have been designed to cover points 5.5 & 5.9 of the Pearson Edexcel A-level Biology A (Salters Nuffield) specification and provide a thorough introduction to the light-dependent and light-independent reactions which are covered in the next 3 lessons. Students will have some knowledge of photosynthesis from GCSE and were introduced to the ultrastructure of eukaryotic cells in topics 3 and 4 so this lesson has been written to test and to build on that knowledge. A version of the quiz show POINTLESS runs throughout the lesson and this maintains engagement whilst challenging the students to recall the parts of the chloroplast based on a description which is related to their function. The following structures are covered in this lesson: double membrane thylakoids (grana) stroma intergranal lamellae starch grains chloroplast DNA and ribosomes Once each structure has been recalled (or introduced) , a range of activities are used to ensure that key details are understood. As the main focus of the lesson is the reaction of photosynthesis, extra time is taken to introduce the details of the light-dependent and light-independent reactions that take place in the grana and stroma respectively. This includes descriptions of the role of the thylakoid membranes in the light-dependent reactions and the importance of ATP and reduced NADP for the reduction of GP to GALP in the Calvin cycle of the light-independent reactions. Links to other related topics are also made throughout and this is exemplified by the final task of the lesson where students are challenged on their recall of the structure, properties and function of starch (as originally covered in topic 1) As described above, this lesson has been specifically planned to prepare students for the upcoming lessons that cover the details of specification points 5.7 & 5.8 (i) and (ii).

A fully-resourced lesson that looks at the topic of osmosis and how the movement of water between a cell and the solution can affect the appearance of an animal and a plant cell. This lesson includes a detailed and engaging lesson presentation (42 slides) and differentiated worksheets that include exam questions that can be set as homework. There is a lot of key terminology associated with this topic and time is taken to ensure that students understand the meaning of each of these terms before moving forwards. Students are introduced to the different types of solutions and then a step-by-step guide is used to show them how to compare the water potential of the solution and the cell and then how this will determine which was water moves. The main task is differentiated so that students are challenged and can access the work. This lesson has been designed for GCSE students (14 - 16 year olds in the UK) but is also suitable for A-level students

This is a highly engaging, detailed and fully-resourced revision lesson which has been designed to test the students on their knowledge and understanding of topic 6 (Radioactivity) of the Pearson Edexcel GCSE Physics specification. The PowerPoint and accompanying resources contain a wide range of resources which include exam-style questions with fully-explained answers, differentiated tasks and quick quiz competitions. The students will be motivated by the range of tasks whilst crucially recognising those areas of the specification which require some extra time before the exams The following specification points are covered in this lesson: Describe the structure of atom and recall the typical size Recall the relative masses and charges of the subatomic particles and use the number of protons and electrons to explain why atoms are neutral Describe the structure of the nuclei of an isotope Explain what is meant by background radiation and recall sources Describe methods for measuring and detecting radioactivity Describe the process of beta minus and beta plus decay Write and balance nuclear decay equations Explain the effects on the proton and nucleon number as a result of decay Recall that the unit of radioactivity is Bq Use the concept of half-life to carry out calculations Describe the use of isotopes in PET scanners Describe the differences between nuclear fission and fusion Explain how the fission of U-235 produces two daughter nuclei, two or three neutrons and releases energy Describe the advantages and disadvantages of nuclear energy Explain why nuclear fusion cannot happen at low temperatures and pressures It is estimated that it will take in excess of 2 hours of GCSE teaching to cover the detail of this lesson and it can be used for effective revision at the end of the topic or in the lead up to mock or terminal exams.

A really engaging and detailed lesson presentation (44 slides) and associated differentiated worksheets that looks at communicable diseases in plants and challenges students to diagnose these diseases in plants. During the lesson the students will take on the role of the “Treeage” (triage) nurse and have to direct each plant to the correct ward in the “CASUALTREE” according to the pathogen which has infected them. They will also have to explain how the symptoms which they have identified were caused and explain the future for this plant, during their time as the “Tree surgeon”. The three diseases included in the lesson are tobacco mosaic virus, crown gall disease and powdery mildew disease. There are regular progress checks throughout the lesson so that students can assess their understanding and there is a set homework included as part of the lesson. This lesson has been designed for GCSE students but is also suitable for A-level students looking at the communicable diseases topic

A fully resourced revision lesson which uses a range of exam questions (with explained answers), quick tasks and quiz competitions to enable the students to assess their understanding of the topics found within module 5.1.5 (Plant and animal responses) of the OCR A-level Biology A specification. The topics tested within this lesson include: Investigating tropisms The mammalian nervous system The brain Reflex actions Controlling heart rate Muscle Muscle contraction Student will enjoy the range of tasks and quiz rounds whilst crucially being able to recognise any areas which require further attention

A detailed lesson presentation and associated question worksheet which uses a step by step guide and numerous worked examples to show students how to draw genetic crosses to calculate offspring percentages. Before students are able to draw genetic diagrams, they need to understand and be able to use genetic terminology so this is the focus for the start of the lesson. Time is taken to go over the meaning of dominant and recessive alleles, genotypes and phenotypes. Moving forwards, students will be challenged to link genotypes to phenotypes for both dominant and recessive disorders and common misconceptions such as carriers in recessive disorders are explained. Finally, a 5 step guide is used to walk students through drawing genetic diagrams. Students are then given a chance to apply their new-found knowledge to questions about the inheritance of cystic fibrosis and polydactyly. Progress checks have been written into the lesson at regular intervals so that students can assess their understanding. This lesson has been designed for GCSE students but is perfectly suitable for A-level students who are studying the topic of monogenic inheritance

This fully-resourced lesson describes the role of transcription factors in the regulation of gene expression. The detailed PowerPoint and accompanying resources have been designed to cover the details of specification points 7.2 (i) and (ii) of the Edexcel A-level Biology B course. This is one of the more difficult concepts in this A-level course and therefore key points are reiterated throughout this lesson to increase the likelihood of student understanding and to support them when trying to make links to actual biological examples in living organisms. There is a clear connection to transcription and translation as covered in topic 1.4, so the lesson begins by reminding students that in addition to the structural gene in a transcription unit, there is the promotor region where RNA polymerase binds. Students are introduced to the idea of transcription factors and will understand how these molecules can activate or repress transcription by enabling or preventing the binding of the enzyme. At this point, students are challenged on their current understanding with a series of questions about DELLA proteins so they can see how these molecules prevent the binding of RNA polymerase. Their understanding is then tested again with another example with oestrogen and the ER receptor. The final and main section of the lesson focuses on the lac operon. Students will be able to visualise the different structures that are found in this unit of DNA and time is taken to go through the individual functions. A step by step guide is used to walk students through the sequence of events that occur when lactose is absent and when it is present before they are challenged to apply their understanding to an exam question.

This fully-resourced lesson describes the ultrastructure of an eukaryotic cell and describes the relationship between the structure and function of the organelles. The detailed and engaging PowerPoint and accompanying resources have been designed to cover point 2.1 (v) of the Edexcel A-level Biology B specification As cells are the building blocks of living organisms, it makes sense that they would be heavily involved in all of the 10 topics in the Edexcel A-level B course and intricate planning has ensured that links are made to topic 1 and details are provided to link to the upcoming topics. A wide range of activities, that include exam-style questions, class discussion points and quick quiz competitions, will maintain motivation and engagement whilst covering the finer details of the following structures and organelles: nucleus nucleolus ribosomes rough endoplasmic reticulum Golgi apparatus lysosomes smooth endoplasmic reticulum mitochondria cell surface membrane centrioles vacuole (+ tonoplast) chloroplasts cell wall As mentioned above, all of the worksheets have been differentiated to support students of differing abilities whilst maintaining challenge Due to the detail that is included in this lesson, it is estimated that it will take in excess of 3 hours of allocated A-level teaching time to cover the work

An engaging and detailed lesson presentation (53 slides) and associated worksheets that looks at the properties and functions of enzymes and explores how the rate of enzyme-controlled reactions changes with changes in conditions. The lesson begins by using a quick quiz competition to introduce the key terms of active site and substrate. Diagrams accompany the important descriptions so that students can visualise how enzymes are specific to a single substrate and will form enzyme-substrate complexes with only them. Emil Fischer’s lock and key hypothesis is briefly discussed so that the correlation between the hypothesis and key terms can be made. Students are shown how most enzymes or groups of enzymes can be named by remembering two rules and they will be tested on this through a second competition. At this point, a progress check is used to allow the students to assess their understanding and ability to bring the information together for enzyme function. The rest of the lesson looks at how changing the temperature and pH will affect the rate of an enzyme controlled reaction. Students will meet the graph shapes that accompany both of these factors and then are helped with the explanation of the trend which is normally poorly done in exam questions. This lesson has been designed for GCSE students.