This detailed lesson describes the different types of plant responses, including responses to abiotic stress and herbivory and the range of tropisms. The PowerPoint and accompanying resources have been primarily designed to cover the content set out in point (a) of module 5.1.5 of the OCR A-level biology A specification, but as the role of auxins in phototropism and gravitropism are also described, some aspects of point (b) are covered. This lesson also acts as an excellent revision tool as the students’ knowledge of previously-covered topics including classification, defences against pathogens, and biological molecules are constantly challenged. The lesson begins with one of these challenges, where the students must recognise 7 key terms from their descriptions and use the respective 1st letters to reveal the key term, stimuli. This leads into the recognition of the need for plants to respond to these changes in the environment to increase their chances of survival. Students will have briefly encountered auxins at GCSE and this first part of the lesson builds on this knowledge, introducing IAA, and ensuring that they know the fundamentals, including how these hormones move from the tips to the growing regions. A series of application questions will challenge them to describe how plants display positive phototropism and roots display positive gravitropism. Moving forwards, the students will learn that nastic responses are independent of the direction of the external stimuli and the Venus flytrap is used as an example. Again, a series of exam-style questions will challenge the students on their knowledge of topics related to this carnivorous plant. The remainder of the lesson considers responses to abiotic stress, such as water stress and the herbivory response, including the production of alkaloids and pheromones. The answers to all understanding checks are embedded into the PowerPoint to allow the students to assess their progress.

This lesson uses a step-by-step guide to describe the role of gibberellins in the germination of barley. The PowerPoint and accompanying resource have been planned to cover point (3) of topic 15.2 of the CIE A-level biology specification (for assessment in 2025 - 27). The lesson begins with a challenge, where the students must identify the term, germination, from a series of clues. They will learn that this is the development of a plant from a seed following a period of dormancy and involves gibberellins. A quick quiz round is then used to introduce the embryo, endosperm and aleurone layer in the structure of a barley seed. The process of seed germination can be divided into a sequence of 9 events and the main task of the lesson challenges the students to order these 9 events. However, this task has an extra level of difficulty as two of the events have been missed out, so the students must use the clues to predict the key biological processes in these events.

This lesson describes the features of the endocrine system, focusing on the differing actions of peptide and steroid hormones at target cells. The detailed PowerPoint and accompanying resources have been primarily designed to cover point (1) of topic 15.1 of the CIE A-level biology specification but can also be used as a revision tool to check on their knowledge of the role of glucagon in the homeostatic control of blood glucose concentration from topic 14 whilst introducing transcription factors which will be covered in topic 16. Students should have a base knowledge of the endocrine system from GCSE and topic 14 so this lesson has been planned to build on that knowledge and to add the detail needed at this level. The lesson begins by challenging this knowledge to check that they understand that endocrine glands secrete these hormones directly into the blood. Students will learn that most of the secreted hormones are peptide (or protein) hormones and a series of exam-style questions are used to challenge them on their recall of the structure of insulin as well as to apply their knowledge to questions about glucagon. Moving forwards, the students are reminded that hormones have target cells that have specific receptor sites on the surface of their membrane. The relationship between a peptide hormone as a first messenger and a second messenger on the inside of the cell is described to allow students to recall how the activation of cyclic AMP triggers a cascade of events on the inside of the cell. The rest of the lesson focuses on steroid hormones and specifically their ability to pass through the membrane of a cell and to bind to transcription factors, as exemplified by oestrogen.

This detailed and engaging lesson will support students to revise in the build up to their PAPER 1 mocks or final assessment. The wide range of tasks and activities will challenge students on their knowledge of topics 1 - 7 of the Edexcel A-level biology B specification, allowing them to recognise those areas which require further attention before the examinations. Included in the range of tasks are exam-style questions and understanding checks and all answers are embedded into the PowerPoint. There are quiz rounds to maintain engagement and to encourage healthy competition, as well as guided discussion periods to provide opportunities for students to support each other. The following content is directly covered by this revision lesson: The nature of the genetic code Classification hierarchy and the binomial name The meaning of a biological species The three-domain model DNA triplets and mRNA codons The structure of haemoglobin and collagen Fibrous and globular proteins The roles of the heart valves in the cardiac cycle The enzymes in DNA replication The role of meiosis in genetic variation The structure of starch and cellulose The ultrastructure of eukaryotic cells The light-dependent and light-independent reactions of photosynthesis The role of APCs and T helper cells in the immune response The evolution of antibiotic resistance Many of the tasks have been differentiated to maintain challenge whilst providing access to all. This is an extensive lesson with many tasks so it is estimated that it will take over 3 hours of teaching time if covered in full, but teachers may choose to use small sections in shorter lessons to focus on a specific topic.

This is a fully-resourced REVISION lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 4 (Magnetism and magnetic fields) of the OCR GCSE Physics A 9-1 specification. The specification points that are covered in this revision lesson include: Describe the attraction and repulsion between unlike and like poles for permanent magnets Describe the difference between permanent and induced magnets Explain how the behaviour of a magnetic (dipping) compass is related to evidence that the core of the Earth must be magnetic Apply: force on a conductor (at right angles to a magnetic field) carrying a current = magnetic flux density x current x length Apply: potential difference across primary coil (V)/potential difference across secondary coil (V) = number of turns in primary coil / number of turns in secondary coil Describe how a magnet and a current-carrying conductor exert a force on one another Show that Fleming’s left-hand rule represents the relative orientations of the force, the current and the magnetic field Explain how the force exerted from a magnet and a current-carrying conductor is used to cause rotation in electric motors Explain the action of a loudspeaker and headphones Of all of the Physics topics, this one tends to be one of the least well understood. Therefore, time has been taken to not only make this an engaging revision lesson but to go into detail on some of the topics which are commonly assessed in the exams. LInks have also been made to topic 3 (electricity) as these can often be combined in questions on Paper 1. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This REVISION lesson contains an engaging powerpoint (45 slides) and is fully-resourced with 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 topics P12 (Magnetism and the motor effect) and P13 (Electromagnetic induction) of the Edexcel GCSE Combined Science specification. Generally, these topics are poorly understood by students but are regularly assessed through questions in the GCSE exams and so time has been taken to design the lesson so that the key points are covered and common misconceptions addressed. The following specification points are covered in this lesson: Recall that unlike magnetic poles attract and like magnetic poles repel Explain the difference between permanent and induced magnets Describe the use of plotting compasses to show the shape and direction of the field of a magnet and the Earth’s magnetic field Explain how the behaviour of a magnetic compass is related to evidence that the core of the Earth must be magnetic Explain that magnetic forces are due to interactions between magnetic fields Recall and use Fleming’s left-hand rule to represent the relative directions of the force, the current and the magnetic field for cases where they are mutually perpendicular Use the equation which connects force on a conductor, magnetic flux density, current and length Recall that a transformer can change the size of an alternating voltage Explain why, in the national grid, electrical energy is transferred at high voltages from power stations, and then transferred at lower voltages in each locality for domestic uses as it improves the efficiency by reducing heat loss in transmission lines Explain where and why step-up and step-down transformers are used in the transmission of electricity in the national grid Use the power equation (for transformers with 100% efficiency) This lesson is suitable for use 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 is an engaging REVISION lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 2 (Electricity) of the AQA GCSE Physics (8463) specification. The specification points that are covered in this revision lesson include: Standard circuit diagram symbols Current, resistance and potential difference Resistors Series and parallel circuits Direct and alternating potential difference Mains electricity Power Static charge The students will thoroughly enjoy the range of activities, which include quiz competitions such as “GRAFT over these GRAPHS” where they have to compete to be the 1st to recognise one of the graphs associated with the resistors whilst all the time evaluating and assessing which areas of this topic will need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is a highly-detailed revision resource which has been designed to be used over a number of lessons and allows teachers to dip in and out of the material as fits to the requirements of their classes and students. The resource consists of an engaging and detailed powerpoint (148 slides) and worksheets which have been differentiated to allow students of differing abilities to be challenged whilst accessing the work. The lesson consists of a wide range of activities which will engage and motivate the students and includes exam questions, quiz competitions and quick tasks and mathematical skills are challenged throughout. The lesson has been designed to cover as many of the sub-topics within topics 1, 2 and 3 of the OCR Gateway GCSE Biology A specification but the following sub-topics have been given particular attention: Topic B1: Cell-level systems Eukaryotic and prokaryotic cells Respiration Functions of the organelles of animal and plant cells Microscopy and calculating size Topic B2: Scaling up The functions of the components of blood Specialised cells Osmosis Mitosis and the cell cycle The heart and blood vessels Topic B3: Organism-level systems The nervous system The structures and functions of the eye IVF This revision resource can be used in the lead up to mocks or the actual GCSE exams and due to its size, it could be repeatably used to ensure that students develop a deep understanding of these topics.

This is a fully-resourced REVISION lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 7 (Magnetism and electromagnetism) of the AQA GCSE Physics (8463) specification. The specification points that are covered in this revision lesson include: Poles of a magnet Electromagnetism Fleming’s left hand rule Electric motors Loudspeakers Transformers Of all of the Physics topics, this one tends to be one of the least well understood. Therefore, time has been taken to not only make this an engaging revision lesson but to go into detail on some of the topics which are commonly assessed in the exams. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is an engaging REVISION lesson which is fully-resourced and uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 2 (Forces) of the OCR GCSE Physics A 9-1 specification. The specification points that are covered in this revision lesson include: Recall and apply: distance travelled (m) = speed (m/s) x time (s) Recall and apply: acceleration (m/s2) = change in velocity (m/s) / time (s) Apply: (final velocity (m/s))2 - (initial velocity (m/s))2 = 2 x acceleration (m/s2) x distance (m) Recall and apply: kinetic energy (J) = 0.5 x mass (kg) x (speed (m/s))2 Describe how to measure distance and time and use these to calculate speed Explain the vector–scalar distinction as it applies to displacement and distance, velocity and speed Recall and apply: force (N) = mass (kg) x acceleration (m/s2) Recall and apply: momentum (kgm/s) = mass (kg) x velocity (m/s) Recall and apply: work done (J) = force (N) x distance (m) (along the line of action of the force) Recall and apply: power (W) = work done (J) / time (s) Represent such forces as vectors Define momentum and describe examples of momentum in collision Recall and apply Newton’s third law Recall and apply: force exerted by a spring (N) = extension (m) x spring constant (N/m) Recall and apply: gravity force (N) = mass (kg) x gravitational field strength, g (N/kg Recall and apply: (in a gravity field) potential energy (J) = mass (kg) x height (m) x gravitational field strength, g (N/kg) Recall and apply: pressure (Pa) = force normal to a surface (N) / area of that surface (m2) Recall and apply: moment of a force (Nm) = force (N) x distance (m) (normal to direction of the force Calculate a spring constant in linear case Describe that all matter has a gravitational field that causes attraction, and the field strength is much greater for massive objects Define weight, describe how it is measured and describe the relationship between the weight of an object and the gravitational field strength (g Define and calculate the moment of the force in such examples Use the relationship between the force, the pressure and the area in contact There is clearly a huge emphasis on the mathematical aspect of the subject in this topic and the various skills needed for success in the calculations are tested throughout this lesson. Students will enjoy the range of activities which includes quiz competitions such as “FILL THE VOID” where students compete to be the 1st to complete one of the 12 recall equations in this topic. This lesson is suitable to be used as a revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This REVISION resource has been written with the aim of motivating the students whilst they are challenged on their knowledge of the content in Chemistry TOPIC 2 (States of matter and mixtures) of the Edexcel GCSE Combined Science specification. The resource contains an engaging and detailed PowerPoint (65 slides) and accompanying worksheets, most of which are differentiated to allow a range of abilities to access the work. The wide range of activities, which include exam questions and quiz competitions, have been designed to cover as much of topic 2 as possible but the following sub-topics have been given a particular focus: Pure substances in Science Using melting and boiling points to distinguish between pure and impure Separating mixtures using simple and fractional distillation Determining a state of matter using data Physical changes Crystallisation The mobile and stationary phases of paper chromatography Calculating the retention factor The treatment of water to make potable water This resource is suitable for use at the end of topic 2, in the lead up to mocks or in the preparation for the final GCSE exams.