A complete lesson covering section 4.2.1 c and d of the OCR A level Biology specification- how to calculate and interpret the Simpson’s index of biodiversity. It introduces the index, provides worked examples and an opportunity for students to complete a full calculation. It also introduces the second part of PAG3.1 so students can calculate their own values of biodiversity based on the previous lessons practical work. The lesson includes a starter, full notes, various independent student activities and a differentiated summary at the end. All answers provided.

A complete lesson covering section 4.2.1a and b of the OCR Biology specification- sampling strategies and techniques. It covers the data collection part of PAG3.1 with the analysis covered in a future lesson. The lesson introduces quadrats and how they can be used to sample species. This includes the use of a point frame as well as other ways of estimating percentage cover. The lesson includes a starter, full notes, various student activities and a differentiated summary at the end. All answers provided

This is a full lesson covering section 4.2.2a and of the OCR A level chemistry specification. It covers synthetic routes and provides students with a summary diagram of all the reactions studied so far in the course. It also introduces analysing compounds with multiple functional groups as well as how reactions can be used to convert one functional group to another in multi-step procedures This is the third of a series of lessons covering section 4.2.2a and PAG5 The lesson includes a starter, full notes, various student activities and a fully differentiated summary at the end . All answers included Edited 21/03 to add extra exam question Please see my shop for further resources

This is a full lesson covering section 4.2.2a and PAG5.4 of the OCR A level chemistry specification. It covers the quick fit apparatus and the methods for distillation and using a separation funnel. It is based PAG 5.4. and includes follow up questions. This is the second of a series of lessons covering section 4.2.2a and PAG5 The lesson includes a starter, full notes, various student activities and a fully differentiated summary at the end . It also includes a sheet for students to complete their own risk assessments prior to the lesson. All answers included Please see my shop for further resources

This is a full lesson covering section 4.2.2a and PAG5.3 of the OCR A level chemistry specification. It introduces the quick fit apparatus and the methods for distillation and heating under reflux. It is based on the Cleaps version of PAG 5.3. and includes follow up questions. This is the first of a series of lessons covering section 4.2.2a and PAG5 The lesson includes a starter, full notes, various student activities and a fully differentiated summary at the end . It also includes a sheet for students to complete their own risk assessments prior to the lesson. All answers included Please see my shop for further resources

This is a complete lesson covering section 4.2.1 a and b of the OCR A level Biology specification- biodiversity and sampling techniques. It covers what biodiversity is and how it can be considered at different levels. It also covers different sampling strategies including random and non- random sampling and techniques for sampling animals. It closes with capture recapture. The lesson includes a starter recalling previous topics, full notes, many student independent activities and a fully differentiated summary at the end. All answers provided This is a free lesson to show the nature and quality of my resources. Please see my shop for other resources available- https://www.tes.com/teaching-resources/shop/atdewar

A full lesson covering point 4.2.2e of the OCR A level Chemistry specification- the environmental issues caused by haloalkanes. It covers the development and use of organohalogens as well as the mechanisms by which CFCs cause damage to the ozone layer. It also includes the other chemicals that may damage the ozone layer and the chemicals that are being used as an alternative. The lesson includes a starter, full notes, various student activities and a fully differentiated summary at the end. All answers included.

A complete lesson revising content from AQA trilogy topic B6- Genetics and reproduction. The lesson has been updated to reflect the return to normal exam oprocedures. The old version is inclduded. the lesson covers : Gender determination Genes and DNA Genetic crosses Asexual reproduction Meiosis Vs mitosis Cystic fibrosis Evolution Selective breeding and GM

A complete lesson covering section 4.2.2 a-d of the OCR A level chemistry specification- the hydrolysis of haloalkanes. It covers the reactions with water and hydroxide, the definition and use of the term nucleophile, the reaction mechanism for the reaction with primary haloalkanes, and an explanation of the trend in the rates of hydrolysis. It also includes a method (with tech details and safety) for testing the rate of reaction. This includes some follow up questions to the practical as well as sample results should it not be possible to complete the practical. The practical can be used towards PAG 7. The lesson includes a starter, full detailed notes, a variety of independent student tasks and a fully differentiated summary at the end. All lessons included.

A complete lesson covering section 4.2.1c of the OCR A level chemistry specification. It covers the oxidation of primary and secondary alcohols and the resistance to oxidation or tertiary alcohols. The lesson includes a starter, full notes, various student tasks and a fully differentiated summary at the end. All answers included

A complete lesson covering section 4.2.1 b, d and e- the combustion, elimination and substitution reactions of alcohols. It covers the combustion of alcohols, the difference between burning alcohols and alkanes, the dehydration of alcohols to form alkenes, how heating under reflux works and substitution reactions with hydrogen halides. The lesson includes a starter, full notes, various independent student learning activities and a fully differentiated summary at the end. All answers are included

A full lesson covering section 4.1.1m of the OCR A level Biology specification- sources of disease. It covers the use of plants as a source of medicine, some examples of plant based medicines, the importance of maintaining biodiversity and synthetic biology and personalised medicines. The lesson includes a starter, full notes, a variety of individual student learning activities and a fully differentiated summary at the end All answers provided

A full lesson covering section 4.1.1n the benefits and risks of the use of antibiotics. This includes the discovery of antibiotics by Fleming in 1928 as well the development of antibiotics as a treatment in WW2. It also covers the risks associated with the development of antibiotic resistance and ways in which this might be prevented The lesson includes a starter, full notes, multiple independent student learning activities and a fully differentiated summary at the end. A homework is also included All answers included

A full revision lesson based around the OCR A level physics course module 4- electricity. It includes a number of exam questions, a variety of short answer questions to check the recall of equations and other key facts, and a section covering circuit symbols. The exam questions build on each other allowing students to practice key skills adding a layer of difficulty each time. All answers included.

This is a complete lesson covering points 4.1.1 j and l of the OCR A Level Biology specification-vaccination and types of immunity. It covers what a vaccination is, how it was developed, the use of vaccines to tackle epidemics and the difference between active and passive immunity and natural and artificial immunity. The lesson includes a starter, full notes, a variety of individual student activities, and a fully differentiated summary at the end. It also includes a homework based on Jenner and his vaccine for small pox. All answers included

A complete lesson covering specification points 4.1.1h- antibodies. It covers the structure and function of antibodies, the various roles they play in the immune system, how antibodies contribute to allergies and the difference between the primary and secondary immune response. The lesson includes a starter, full notes, a variety of independent student learning activities and a differentiated summary at the end All answers provided