Topic: Mitosis
Lesson 1: Introduction to Mitosis
| Section | Details |
|---|---|
| Objective | – Understand the process of mitosis and its significance in producing genetically identical cells. |
| Activities | Starter (5 mins): Show a video or animation of cell division and ask students what they observe. Main (25 mins): 1. Define mitosis as nuclear division that produces identical daughter cells. 2. Explain that chromosomes replicate exactly before mitosis begins. 3. Discuss the importance of maintaining the chromosome number in each daughter cell. Plenary (10 mins): Students summarize the process of mitosis in a flowchart. |
| Resources | Mitosis animation, diagrams showing chromosome replication, and division. |
| Time | 40 minutes |
| Homework | Draw and label a diagram showing a dividing cell with chromosomes being replicated and separated. |
| Assessment | Students explain how mitosis ensures genetic consistency in daughter cells. |
| Past Paper Practice | IGCSE Biology 0610/21/O/N/20 Q5(b). |
Lesson 2: Role of Mitosis
| Section | Details |
|---|---|
| Objective | – Understand the role of mitosis in growth, repair, cell replacement, and asexual reproduction. |
| Activities | Starter (5 mins): Show examples of regrowth in plants or repair in animals (e.g., wound healing). Main (25 mins): 1. Discuss how mitosis facilitates growth by increasing cell numbers. 2. Explain the role of mitosis in replacing damaged or dead cells. 3. Relate mitosis to asexual reproduction in organisms like bacteria and plants. Plenary (10 mins): Students identify examples of mitosis in their daily lives. |
| Resources | Images of cell regrowth, plant propagation examples, and wound healing animations. |
| Time | 40 minutes |
| Homework | Write a short paragraph explaining why mitosis is essential for survival. |
| Assessment | Class participation and a quiz on the role of mitosis. |
| Past Paper Practice | IGCSE Biology 0610/31/M/J/19 Q3(a). |
Lesson 3: Stem Cells and Specialisation
| Section | Details |
|---|---|
| Objective | – Understand the role of stem cells and how they can become specialized through mitosis. |
| Activities | Starter (5 mins): Ask students to think of examples where unspecialized cells might be useful (e.g., regeneration of tissues). Main (25 mins): 1. Define stem cells as unspecialized cells capable of mitotic division. 2. Discuss how stem cells divide to produce specialized cells for specific functions. 3. Relate stem cell research to medical applications like tissue regeneration. Plenary (10 mins): Students create a mind map connecting stem cells, mitosis, and specialization. |
| Resources | Diagrams of stem cells and differentiated cells, videos on stem cell research applications. |
| Time | 40 minutes |
| Homework | Research one medical application of stem cells and write a brief report. |
| Assessment | Students explain the significance of stem cells during class discussions. |
| Past Paper Practice | IGCSE Biology 0610/41/M/J/19 Q5(a). |
Key Notes for Teachers:
- Use animations and interactive tools to visually represent chromosome replication and separation.
- Emphasize the role of mitosis in maintaining genetic stability.
- Discuss real-life examples like wound healing, plant propagation, and stem cell therapies to enhance understanding.
Key Notes for Students:
- Mitosis produces genetically identical daughter cells, maintaining the chromosome number.
- It plays a vital role in growth, repair, and asexual reproduction.
- Stem cells are versatile, unspecialized cells that can differentiate into specialized cells for specific functions.
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