PowerPoint presentation and worksheet on variation and selective breeding for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource assumes some basic knowledge of sexual reproduction and inheritance. Next topic Evolution: https://www.tes.com/teaching-resource/resource-12557498 Content Covered: Genetic variation Environmental variation Selective breeding Causes of variation (mutation and sexual reproduction) Uses and disadvantages of selective breeding 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 the work of the monk Gregor Mendel 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 Variation and Selective Breeding: https://www.tes.com/teaching-resource/resource-12547790 Content Covered: Overview of Mendel’s work First and second generation crosses Relating Mendel’s work to later discoveries -See also “Genetic Diagrams” https://www.tes.com/teaching-resource/resource-12974524 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 genetic 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 Inherited Disoders: https://www.tes.com/teaching-resource/resource-12405728 Content Covered: Alleles Homozygous and heterozygous Both types of genetic diagram covered in the course with practice questions and worked examples 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 X and Y chromosomes 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. Content covered: X chromosomes and Y chromosomes Meiosis and fertilisation Introduction to genetic diagrams using X and Y chromosomes as an example Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

Meiosis Slides and Worksheet (GCSE Biology AQA). PowerPoint presentation and worksheet on meiosis 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. 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 DNA, protein synthesis and mutations 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 Reproduction: https://www.tes.com/teaching-resource/resource-12376794 Content Covered: DNA structure Protein synthesis Human genome mapping Mutations (insertions, deletions and substitutions) 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 gas exchange for A-Level biology for teaching and revision. Key points from GCSE are recapped in the presentation. Content Covered: Gas exchange in humans Inspiration and expiration Gas exchange in fish Gas exchange in insects Gas exchange in plants Xerophytes 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 xylem and phloem for A-Level biology for teaching and revision. Key points from GCSE are recapped in the presentation. Content Covered: Xylem and phloem Transpiration Cohesion-Tension theory Rate of transpiration Potometers Translocation Mass flow hypothesis Autoradiography Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation on metabolism and homeostasis 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. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Homeostasis lesson GCSE biology https://www.tes.com/teaching-resource/resource-12960089

Discussion exercise on assisted reproduction for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Related topic The Menstrual Cycle: https://www.tes.com/teaching-resource/-12366008 Content Covered: Hormone therapy (LH and FSH) In vitro fertilisation (IVF) Intra-cytoplasmic sperm injection (ICSI) Bioethics 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 the eye 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 Body Temperature: https://www.tes.com/teaching-resource/resource-12362801 Content Covered: Parts of the eye The iris reflex Accommodation (near and distant objects) Short- and long-sightedness Convex and concave lenses Other methods of vision correction 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 the brain 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 Eye: https://www.tes.com/teaching-resource/resource-12362148 Content Covered: Brain structure and function Studying the brain 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 drugs and drug development for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Monoclonal Antibodies: https://www.tes.com/teaching-resource/monoclonal-antibodies-slides-and-worksheet-gcse-biology-aqa-12357328 Content Covered: Antibiotics Antibiotic resistance Drug discovery Preclinical and Clinical trials Animal testing Double-blind studies Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. New! Drugs Lesson GCSE Biology https://www.tes.com/teaching-resource/resource-12948723

PowerPoint presentation and worksheet on digestive enzymes 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. Leads on to the Respiratory System: https://www.tes.com/teaching-resource/respiratory-system-slides-and-worksheet-gcse-biology-aqa-12337350 Content Covered: Overview of the digestive system Proteases, lipases and carbohydrases Bile Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Digestive Enzymes Lesson https://www.tes.com/teaching-resource/resource-12903171

PowerPoint presentation and worksheet on cell organisation 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. Leads on to Enzymes: https://www.tes.com/teaching-resource/enzymes-slides-and-worksheet-gcse-biology-aqa-12345968 and Plant Cell Organisation: https://www.tes.com/teaching-resource/plant-cell-organisation-slides-and-worksheet-gcse-biology-aqa-12315439 Content Covered: Hierarchy of cell organisation from cell to organism Glandular, muscle and epithelial tissue The digestive system Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo NEW: Cell organisation lesson https://www.tes.com/teaching-resource/resource-12842264

Key Stage 4 ~ GCSE Biology~ lesson on Reflexes. In this lesson pupils will describe reflex arcs, explain why reflexes are useful and give some examples of reflex arcs. 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) -Task boxes -Handout sheet task -Order the steps -Identification task (Is it a Reflex?) -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 apart from the keyword pathogen which means disease-causing microorganism (germs). Discussion/extension answers are in the ppt notes. -Next lesson The Brain https://www.tes.com/teaching-resource/resource-12994716 https://www.tes.com/teaching-resources/shop/Dr_Troilo

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