Lesson Plan

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Lesson Plan
Grade: Date: 25/02/2026
Subject: Biology
Lesson Topic: State the functions of: red blood cells – haemoglobin and oxygen transport, white blood cells – phagocytosis and antibody production, platelets – causing clotting, plasma – transport of blood cells, ions, soluble nutrients, hormones and carbon dioxid
Learning Objective/s:
  • Describe the role of haemoglobin in oxygen transport and carbon‑dioxide removal.
  • Explain how white blood cells protect the body through phagocytosis and antibody production.
  • Identify the steps by which platelets initiate clot formation.
  • Summarise the transport functions of plasma for nutrients, ions, hormones and waste products.
Materials Needed:
  • Projector and screen
  • PowerPoint slides with blood component diagrams
  • Printed worksheet with labeling activity
  • Whiteboard and markers
  • Exit‑ticket cards or digital quiz (e.g., Kahoot)
 Introduction:

Begin with a quick “What travels in your blood?” brainstorm to activate prior knowledge of blood components. Show a striking image of blood under a microscope to spark curiosity. Explain that by the end of the lesson students will be able to state the specific functions of each component and how they work together.
Lesson Structure:
  1. Do‑now (5') – Students answer a short recall question on the main blood components on the board.
  2. Mini‑lecture with slides (10') – Overview of RBCs, WBCs, platelets, and plasma functions.
  3. Guided analysis of the key‑functions table (8') – Teacher models how to extract essential information.
  4. Labeling activity (10') – Pairs label a printed cross‑section diagram of blood.
  5. Think‑pair‑share (7') – Discuss how the four components cooperate to maintain homeostasis.
  6. Formative quiz (5') – Quick digital quiz to check understanding of each function.
Conclusion:

Recap the four component functions and their interdependence, then ask students to write one key fact on an exit‑ticket. Collect tickets for immediate feedback. For homework, assign a short worksheet where learners match clinical scenarios (e.g., anemia, bleeding) to the affected blood component.