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Edexcel Specification 6.17 - 6.19 Two lessons which takes students through the process of how the polymerase chain reaction works and how gel electrophoresis can produces banding patterns. There are opportunities for class discussion and tasks for the students to complete. I have also included a video which discusses DNA fingerprinting.

Edexcel Spec Link - 6.16 and 6.20 Three lessons which focus on the forensic science element of the topic. The first lesson looks at the role of microorganisms in decomposition. This is a recap session, looking at the carbon cycle. Lesson 2 introduces the idea of using body temperature and rigor mortis to determine time of death. lesson 3 finishes the topic looking at the role of bacteria and insects in decomposition. This links to succession which had been studied previously. There are many different student activities including questions and answers on the topic.

Tow power point lessons which look at the action of antibiotics on bacteria - bacteriostatic and bactericidal. Also, how natural selection has made certain bacteria resistant to antibiotics and why this has occurred. There are activities for the students to promote active learning plus video resources and questions.

This resource focuses on Edexcel specification link 6.11 It introduces the different types of immunity. There is a video resource and questions to check understanding. The information cards can be printed and put around room for students to collect information to make it more interactive. I was short on time so I went through them on the board as students made their own notes.

2 lessons focusing on Edexcel specification link 2.7 The first lesson is an introduction to enzymes and naming enzymes The second lesson focuses on how they work and factors which affect the rate of reaction.

4 lessons focusing on the non-specific and specific responses to infection. I have split the lessons into 4 parts due to the subject material being very complex. The lessons cover Edexcel specification links 6.8 - 6.10 but can be used with other exam boards The lessons have many different opportunities for assessment and recalling previous learnt material.

2 lessons looking at the causes, symptoms and treatments of 2 deadly diseases. Edexcel Spec link 6.6 There is plenty of opportunity for class discussion and links into history for both diseases. I have included graded tasks in both lessons as my students enjoy working their way up to the higher grades.

Edexcel Spec link 6.7 (i) (ii) An introduction to how bacteria are able to spread from one person to another. We then look at how the body protects itself against pathogen entry. This is a circus activity where students gather information from around the room (cards provided). Finally we research how bacteria cause the disease with endotoxins and exotoxins.

Edexcel specification link 6.5 (i) (ii) Two power point complete lessons focusing on the structure of viruses and bacteria. The second lesson looks at the lytic and lysogenic cycles with a short video clip on retrovirus reproduction - this will be looked at again when we study HIV. The lesson includes an exam question with mark scheme.

We have started using this technique in our science department to allow students to highlight areas where they make mistakes. This could be due to misreading questions; not understanding the material; not understanding the questions; calculation questions or not using correct terminology. Once our students were aware of where the mistakes were being made, we gave them focused targets and it has helped improve their performance.

Edexcel Topic 1 spec points:1.10, 1.11, 1.15 and 1.17 2 power point lessons with lots of information and independent tasks to allow students to develop their knowledge.

2 ppt lessons covering the specification links in Edexcel 5.23 - 5.25 A range of activities plus assessment opportunities. Tailor made questions fit to students ability. A good topic to generate class discussion too.

2 complete lessons covering the events which lead to the formation of a blood clot and how atherosclerosis occurs. Edexcel IAL spec link - 1.10 and 1.11 There is an excel video included in the ppt. There are many opportunities for assessment in the power points and an exam question for each lesson.

Edexcel Specification Point: 5.20; 5.21; 5.22 covered. A complete lesson discussing the implications in a global change of climate. There are opportunities for group/pair discussion plus exam style questions and answers to check understanding.

Edexcel IAL specification - students learn how the data for a model is produced and then extrapolated. We then look at factors other than carbon dioxide which can influence the model. Limitations of models are discussed.

A power point lesson which guides students through data in the form of carbon dioxide levels; global temperature; rising sea levels and glacial melting. Students gain practice in data analysis which is vital in this module. There are also a series of exam questions with answers to support their understanding. This lesson links with Edexcel IAL Unit 4

Edexcel Biology - specification refernce 5.17 and 5.18 2 powerpoint lessons investigating the Carbon Cycle and Carbon sinks. The second lesson investigates the causes of climate change including the issues of methane from farming.

A series of 4 lessons covering the following points: GPP = NPP + R Calculating net primary productivity Calculating the effficiency of biomass and energy transfers between trophic levels Terminology Biotic and abiotic factors Concept of niche Stages of succession PPT include many tasks for students to promote independent thinking and learning plus exam style questions and answers.

POwer point lesson focusing on the structure and function of DNA in the organism including tasks and questions to challenge/extend students knowledge.