| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Biology |
| Lesson Topic: outline the advantages of genetic screening, using the examples of breast cancer (BRCA1 and BRCA2), Huntington’s disease and cystic fibrosis |
Learning Objective/s:
- Describe the main advantages of genetic screening.
- Compare how screening benefits are applied to breast cancer, Huntington’s disease, and cystic fibrosis.
- Evaluate ethical considerations and counseling needs associated with genetic testing.
- Apply knowledge to propose appropriate screening strategies for given case scenarios.
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Materials Needed:
- Projector and screen
- PowerPoint slides summarizing advantages and disease examples
- Handouts with summary table and case‑study prompts
- Whiteboard and markers
- Sticky notes for quick think‑pair‑share
- Access to an online genetic database (e.g., ClinVar) for demonstration
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Introduction:
Begin with a brief video clip showing a family receiving genetic test results, prompting students to consider how early knowledge can change health decisions. Review prior learning on DNA structure and inheritance patterns to ensure readiness for discussing gene‑based screening. Explain that by the end of the lesson students will be able to list key advantages of screening for breast cancer, Huntington’s disease, and cystic fibrosis.
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Lesson Structure:
- Do‑now (5'): Students answer a quick exit‑ticket question – “What are possible benefits of knowing a health risk before symptoms appear?” and share responses.
- Mini‑lecture (10'): Present an overview of genetic screening and its general advantages using slides.
- Case‑study stations (20'): Small groups rotate through three stations (BRCA, HD, CF), examine handouts, and answer guided questions about disease‑specific advantages.
- Whole‑class synthesis (10'): Groups share findings; teacher consolidates a comparison chart on the board, highlighting ethical considerations.
- Formative check (5'): Quick Kahoot quiz to assess understanding of key advantages and appropriate screening contexts.
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Conclusion:
Summarize that genetic screening enables early detection, informed reproductive choices, and tailored treatments across diverse diseases. Have students write one takeaway on a sticky note as an exit ticket, which will be collected for assessment. Assign homework: read a short article on emerging CRISPR‑based screening and prepare a brief reflection.
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