Presentation and practical handout for observing onion cells under a light microscope for teaching and revision. A step by step visual guide for all abilities. Can be used as a distance based learning tool during local covid lockdown and in classes where practicals are on-hold due to coronavirus. Can be used with Microscopy Slides and Worksheet: https://www.tes.com/teaching-resource/resource-12332237 Content covered: Light microscope parts Slide preparation Using a microscope Drawing and labeling observations Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Microscopy lesson https://www.tes.com/teaching-resource/resource-12829559

Powerpoint and worksheet on contraception for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Next topic Infertility: https://www.tes.com/teaching-resource/resource-12366752 Content Covered: Puberty Menstrual cycle overview Hormone control of the menstrual cycle (FSH, LH, oestrogen and progesterone) Please note that this only covers the science and is not intended as a PSHE resource. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on diffusion and osmosis for teaching and revision. Includes a visual guide to the required practical. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus but is also applicable to other courses. Leads on to Exchange Surfaces: https://www.tes.com/teaching-resource/exchanging-surfaces-slides-and-worksheet-gcse-biology-aqa-12332716 Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Diffusion and osmosis lesson https://www.tes.com/teaching-resource/resource-12831793

Key Stage 4 ~ GCSE Biology~ lesson on X and Y Chromosomes. In this lesson, students will discuss the pros and cons of embryo screening, use genetic diagrams to calculate the odds of inheriting conditions from dominant and recessive alleles and read family trees to show how characteristics are inherited. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: Title slide with learning objectives A starter activity Group reading Task boxes Comprehension questions polydactyly (dominant) Comprehension questions cystic fibrosis (recessive) Discussion exercise Handout sheet task with extension Long-answer questions Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. It does assume that students have some prior familiarity with genetic diagrams and the terminology of genetics (https://www.tes.com/teaching-resource/-13044789). For the extension to the handout task they will need to have some understanding of drug development (https://www.tes.com/teaching-resource/resource-12948723). Discussion/extension answers are in the ppt notes.

PowerPoint presentation and worksheet on control of blood glucose and diabetes for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Next topic The Kidneys: https://www.tes.com/teaching-resource/resource-12364592 Content Covered: Recap of carbohydrate digestion Insulin and glucagon Regulation of high and low blood sugar Type I and II diabetes Insulin therapy Disease management through diet and exercise Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on communicable disease for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Immunity: https://www.tes.com/teaching-resource/immunity-slides-and-worksheet-gcse-biology-aqa-12347551 Content Covered: Pathogen spreading and containment Viruses, bacteria, fungi and protists Measles, HIV and tobacco mosaic virus Rose black spot Malaria Salmonella and gonorrhoea Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo NEW! Free lessons on communicable disease for GCSE Biology. *Pathogens https://www.tes.com/teaching-resource/resource-12910846 Spread and Prevention https://www.tes.com/teaching-resource/resource-12922886 *Communicable Disease Examples https://www.tes.com/teaching-resource/resource-12943788

Discussion exercise and worksheet on health and disease for teaching and revision. See notes in the PowerPoint presentation. This resource follows the AQA Biology GCSE syllabus. Leads on to Disease Risk Factors: https://www.tes.com/teaching-resource/disease-risk-factors-slides-and-worksheet-gcse-biology-aqa-12343042 Content Covered: Communicable vs non communicable diseases Disease interactions Pathogen types Other factors which can affect health Human costs vs financial costs Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Health and disease lessons https://www.tes.com/teaching-resource/resource-12873200

PowerPoint presentation and worksheet on cardiovascular disease for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Cancer: https://www.tes.com/teaching-resource/cancer-slides-and-worksheet-gcse-biology-aqa-12343787 Content Covered: Heart failure and heart attack Coronary artery disease Stents and statins Pacemakers Valve replacement Artificial hearts Artificial blood Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Two-part lesson on cardiovascular disease https://www.tes.com/teaching-resource/resource-12869212 and https://www.tes.com/teaching-resource/resource-12870772

PowerPoint presentation and worksheet on kidneys and dialysis for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus but is also applicable to other courses. Check my shop for other courses: https://www.tes.com/teaching-resources/shop/Dr_Troilo Content Covered: Urine production in the kidneys Anti-diuretic hormone (ADH) Negative feedback control of blood water content Dialysis machines Kidney transplant Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ lesson on Fertility. In this lesson, students will describe which hormones can be used to control fertility and describe other contraceptive methods. They will also explain how fertility can be increased using hormones and reproductive technologies like IVF and ICSI. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: Title slide with learning objectives A starter activity Group reading Keywords (vocabulary: contraception, mucus, spermicide, abstinence and sterilisation) Task boxes Handout sheet task Comprehension questions Discussion exercise Order the steps Recall questions Discussion notes Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes.

Key Stage 4 ~ GCSE Biology~ lesson on the Menstrual Cycle. In this lesson, students will describe the stages of the menstrual cycle and how it is controlled by four main hormones. Pupils will then explain how LH, FSH, oestrogen and progesteron interact with each other. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: Title slide with learning objectives A starter activity Group reading Stage Matching Task boxes Handout sheet task Comprehension questions Exam style questions Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes.

Key Stage 4 ~ GCSE Biology~ lesson on treating kidney failure. In this lesson, students will describe in detail how dialysis words, compare dialysis and kidney transplants and revisit immunity from topic 3 to explain why transplanted organs are sometimes rejected. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. Note: the function of the kidneys and anti-diuretic hormone are covered in a separate lesson which is available for free here https://www.tes.com/teaching-resource/resource-13034532 This lesson includes: Title slide with learning objectives A starter activity Discussion exercise Task boxes Group reading Keywords (vocabulary: concentration, diffusion, dialysis, ions and partially permeable membrane) Handout sheet task Comprehension questions Comparison task Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes.

PowerPoint presentation and worksheet on immunity for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Drugs: https://www.tes.com/teaching-resource/drugs-slides-and-worksheet-gcse-biology-aqa-12356469 Content Covered: Outer body defenses Phagocytosis Antibodies and antigens Immunity Vaccination Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Free lessons on immunity. The Immune System https://www.tes.com/teaching-resource/resource-12945455 Vaccination https://www.tes.com/teaching-resource/resource-12945573

Key Stage 4 ~ GCSE Biology~ lesson on the Kidneys. In this lesson pupils will describe the role of the kidneys in cleaning the blood, explain how hormones control the function of the kidneys and state the different types of treatment for kidney failure. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. Note: this lesson does not discuss in detail how the two treatment methods work- this will be covered in a separate lesson. This lesson includes: Title slide with learning objectives A starter activity Discussion exercise Handout sheet task Group reading (literacy) Keywords (vocabulary: urine, urea, excretion, filter and anti-diuretic hormone ADH) Task boxes Order the steps Comprehension questions Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes.

Key Stage 4 ~ GCSE Biology~ lesson on Blood Glucose and Diabetes. In this lesson pupils will describe how blood glucose is controlled, explain the difference between type I diabetes and type II diabetes and describe how diabetes can be managed. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: Title slide with learning objectives A starter activity Group reading (literacy) Keywords (vocabulary: diabetes, insulin, glucagon, glycogen and pancreas) Task boxes Order the steps Discussion exercise Handout sheet task Comprehension and recall questions Numeracy task Linking questions Includes assessment for learning (AFL). Answer slides included for self-assessment Suitable for remote, online, distance learning Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes.

PowerPoint presentation and worksheet on cancer for teaching and revision. This resource follows the AQA Biology GCSE syllabus. All parts of the syllabus directly relating to disease will be made available for free from my shop https://www.tes.com/teaching-resources/shop/Dr_Troilo Content Covered: Benign and malignant tumours Secondary tumours Cancer risk factors Related topic DNA https://www.tes.com/teaching-resource/resource-12372361 Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Cancer lesson https://www.tes.com/teaching-resource/resource-12902474

PowerPoint presentation and worksheet on binary fission of bacteria and other prokaryotic cells for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus but is also applicable to other courses. Next topic Cell Organisation: https://www.tes.com/teaching-resource/resource-12321911 Content Covered: -Prokaryotic cell division -Mean division time calculations Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Binary fission lesson https://www.tes.com/teaching-resource/resource-12831346

Key Stage 4 ~ GCSE Biology~ full lesson on Transpiration and Translocation. In this lesson pupils will describe the process of transpiration and explain how the xylem and phloem are adapted to their function. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Handout sheet task -Task boxes -Comprehension questions -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes. -Next lesson Transpiration Rate https://www.tes.com/teaching-resource/resource-12864561

Key Stage 4 ~ GCSE Biology~ short lesson on the Reaction Time Practical designed to be used with a practical session or as year 11 pre-exam revision of the required practical. In this lesson pupils will learn a method for measuring reaction time, explain the different variables in this experiment and interpret data from the experiment. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Order the steps -Task boxes -Discussion exercise -Handout sheet task -Comprehension questions -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes. https://www.tes.com/teaching-resources/shop/Dr_Troilo

Discussion exercise and worksheet on risk factors and non-communicable diseases for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Cardiovascular Disease: https://www.tes.com/teaching-resource/cardiovascular-disease-slides-and-worksheet-gcse-biology-aqa-12344623 Content Covered: Types of risk factor Asbestos Global, national and local risk factors Direct and indirect causes of disease Identifying risk factors by correlation Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Health and disease lesson https://www.tes.com/teaching-resource/resource-12873200