| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Biology |
| Lesson Topic: recognise arteries, veins and capillaries from microscope slides, photomicrographs and electron micrographs and make plan diagrams showing the structure of arteries and veins in transverse section (TS) and longitudinal section (LS) |
Learning Objective/s:
- Recognise arteries, veins and capillaries on microscope slides, photomicrographs and electron micrographs.
- Draw accurate plan diagrams of arteries and veins in transverse and longitudinal sections.
- Explain how structural differences of each vessel type relate to their specific functions in the circulatory system.
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Materials Needed:
- Projector and screen
- Microscope slides of artery, vein and capillary
- Photomicrograph and electron‑micrograph handouts
- Drawing paper, ruler and coloured pencils
- Worksheet with diagram templates and checklist
- Whiteboard and markers
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Introduction:
Imagine looking at a tiny blood vessel and instantly knowing whether it’s an artery, vein or capillary. Students should already understand basic blood flow and the three main vessel types. Success will be measured by accurate identification in images and correctly labelled plan diagrams.
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Lesson Structure:
- Do‑now (5') – quick quiz on vessel functions and pressure differences.
- Mini‑lecture (10') – review of structural features using microscope slides and projected images.
- Guided image analysis (15') – groups examine slides, photomicrographs and electron micrographs, completing a feature checklist.
- Diagramming workshop (20') – students draw transverse and longitudinal sections of an artery and a vein, label each layer, and use line styles for different tissues.
- Peer review (5') – pairs check each other’s diagrams against a rubric and discuss any discrepancies.
- Exit ticket (5') – write one sentence linking a key structural feature to its function.
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Conclusion:
We recap how wall thickness, elastic laminae and valves distinguish arteries from veins and how capillary thinness enables exchange. Exit tickets are collected to gauge understanding, and for homework students complete a worksheet comparing capillary structure and write a short paragraph on its role in nutrient and gas exchange.
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