Key Stage 4 ~ GCSE Biology~ free lesson on Exchanging Substances. Pupils will explain why multicellular organisms need specialised exchange surfaces. They will compare surface area to volume ratios and explore the examples of the lungs, small intestine, leaves and gills. 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) -Numeracy task -Task boxes -Discussion exercise -Comprehension questions -Handout sheet task -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. -Return to the start of the topic https://www.tes.com/teaching-resource/resource-12829058 www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ full lesson on Microscopes. In this lesson pupils will name the parts of a microscope, describe the procedure for preparing and viewing microscope slides and use the formula for magnification calculations. 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 -Discussion exercise -Numeracy Task -Extension numeracy task -Handout sheet task -Order the steps -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 Specialised Cells https://www.tes.com/teaching-resource/resource-12829988 www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ full lesson on Diffusion and Osmosis. This lesson does not cover the practical which you can download for free here: https://www.tes.com/teaching-resource/resource-12403223. Pupils will define diffusion and osmosis, explain what is meant by a partially permeable membrane and give examples of factors which affect the rate of diffusion. 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 -Comprehension questions -Handout sheet task -Discussion exercise -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 Active Transport https://www.tes.com/teaching-resource/resource-12831984 https://www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ full lesson on Reproduction in Bacteria. This lesson is a bit longer as it includes post-practical exercises as well as a full theory lesson. Pupils will explain how prokaryotic cells reproduce and calculate the number of bacteria in a population. They will also describe culturing microorganisms. 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 -Numeracy task -Discussion exercise -Handout sheet task -Order the steps -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 Diffusion and Osmosis https://www.tes.com/teaching-resource/resource-12831793 https://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 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

Key stage 3 ~ year 8 ~ two-part lesson on Food Chains and Webs. Lesson 1 In this lesson students will learn about the difference between food chains and food webs, calculate approximate energy transfer at each step in the food chain and explain why most food chains are short. -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (vocabulary: food chain, food web, predator, prey and energy transfer) -Task boxes -Comprehension questions -Numeracy task -Discussion exercise -Answer slides included for self-assessment Lesson 2 In this lesson students will describe the relationship between the populations of producers and consumers. They will discuss the interdependence of organisms in food webs and explain the bioaccumulation of toxins. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (vocabulary: herbivore, omnivore, carnivore, interdependence, insecticide and bioaccumulation) -Task boxes -Comprehension questions -Handout sheet task -Recall Questions -Answer slides included for self-assessment -Next lesson Ecosystems https://www.tes.com/teaching-resource/resource-12768066 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 8 ~ two complete lessons on Electromagnets and Using Electromagnets. In these lesson pupils will describe how to build an electromagnet, suggest ways to control the strength of an electromagnet and explain the difference between induced and permanent magnets. They will then look in-depth at uses for electromagnets. 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 Activate 2 KS3 course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (vocabulary: induced magnet, permanent magnet, electromagnet, magnetise and solenoid) -Task boxes -Handout sheet task -Knowledge expansion task -True or false -Answer slides included for self-assessment -Next lesson Revision https://www.tes.com/teaching-resource/resource-12802172 www.tes.com/teaching-resources/shop/Dr_Troilo