Blood lesson for AQA GCSE Biology 4.2.2.3: plasma, red and white blood cells, platelets and identifying blood cells. PowerPoint, worksheets, answers.
What is this resource?
This is a complete lesson on blood for AQA GCSE Biology (8461), covering specification point 4.2.2.3. It is the ninth lesson in Topic 2: Organisation and is designed to last 60 minutes.
Students learn that blood is a tissue made of plasma, red blood cells, white blood cells and platelets, and what each component does. They explain how each type of blood cell is adapted to its function, write the word equation for oxygen joining with haemoglobin, and learn to identify blood cells in a stained blood smear. The lesson also practises magnification calculations and comparing the size and number of blood cells.
What’s included
• PowerPoint lesson (32 slides) with full teacher notes on every slide: timings, answers, mark schemes, misconceptions and questioning prompts.
• Starter on screen as students arrive, based on a real-world hook: 5 in 6 of the human cells in your body are red blood cells.
• Learning objectives at three levels of challenge: Developing, Secure and Mastery.
• Three learning activities, each with a core task, a support option, a stretch task and a ‘stand back’ mini-whiteboard check with answers.
• Plenary exit ticket with one question per level, an answers slide for self-assessment and a return to the starter.
• Clear original diagrams: a tube of separated blood showing the four components, the three types of blood cell drawn roughly to scale, and a labelled blood smear.
• Editable Word worksheets: a blood key words card sort, an adaptations table (core and support versions), a label-the-blood-smear sheet (core and hint versions) and a 15-mark set of exam-style questions.
• Word lesson plan with objectives, lesson sequence, differentiation, answers and common misconceptions.
Lesson outline
• Starter (5 min): Why is blood red, and why does a red blood cell have no nucleus?
• Activity 1 (15 min): Learn the four components of blood and their jobs, then complete a key words card sort.
• Activity 2 (15 min): Explain how red blood cells, white blood cells and platelets are adapted, and write the word equation for oxyhaemoglobin.
• Activity 3 (15 min): Identify cells in a blood smear, compare their size and number, and answer exam-style questions including magnification calculations.
• Plenary (8 min): Exit ticket at three levels, then self-assessment against the objectives.
Differentiation and inclusion
Every activity offers support and stretch that all students can choose, so no one is singled out. Support includes clue words, sentence frames, a part-completed adaptations table with a word bank, first-letter hints for labelling and a simple key for identifying cells. Stretch tasks ask students to explain why blood is a tissue, suggest a risk of using donated blood and how to reduce it, explain why people living at high altitude have more red blood cells, and use cell counts to explain why white blood cells are hard to find.
The slides follow the British Dyslexia Association Style Guide: a clear sans serif font at a large size, a soft cream background, bold (not italics) for emphasis, left-aligned text and plain English. Levels of challenge never rely on colour alone, cells are identified by size, shape and nucleus rather than colour, every slide has a proper title for screen readers, and diagrams include alt text. Teacher notes include guidance for students who feel anxious about blood and for discussing blood conditions sensitively.
How you could use it
• Teach it as a full lesson on blood in Year 9 or Year 10, with or without microscopes and prepared blood slides.
• Use it as a ready-made cover lesson: the teacher notes explain every step.
• Use the stand back quizzes, exit ticket and exam-style questions for retrieval practice before mocks.
• Use the worksheets on their own for homework or revision.
Specification coverage
AQA GCSE Biology 8461, section 4.2.2.3 Blood, including recognising different types of blood cells in a photograph or diagram and explaining how they are adapted to their functions. Key words: tissue, plasma, red blood cells, haemoglobin, oxyhaemoglobin, biconcave, white blood cells, pathogen, phagocytosis, platelets, clotting. The previous lesson in the series is on coronary heart disease, and the next lesson covers health, lifestyle and non-communicable diseases.
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