Growth Influences Explored

Overview

This 60-minute lesson for Year 10 students (aged 14–15) explores the dual impact of genetic inheritance and lifestyle choices on human growth and development across the lifespan. It aligns with the National Curriculum for England, specifically the Health and Social Care statutory requirements and the key concepts under PSHE education.

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National Curriculum Links

Relevant Programmes of Study:

• Health and Social Care (KS4) / PSHE Education (Key Stage 4)
  • Understand physical, intellectual, emotional, and social development across life stages.
  • Explore factors influencing development, including genetics and lifestyle.
  • Develop skills to make informed decisions promoting health and wellbeing.

Specific Learning Objectives

By the end of this lesson, students will be able to:

• Explain how genetic inheritance influences physical and intellectual growth (NC KS4: biology concepts applied to human development).
• Analyse the role of lifestyle choices—such as diet, exercise, and smoking—on development and wellbeing.
• Compare how genetics and lifestyle factors interact across different life stages.
• Evaluate strategies to promote positive lifestyle choices that enhance growth outcomes.

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Lesson Structure

Starter (5 minutes)

Quick Genetics & Lifestyle Brainstorm

• Both students list 3 things they think might influence growth and development (physical, intellectual, emotional).
• Teacher prompts categorisation: "Which are genetic? Which are lifestyle? Which could be both?"

Purpose: Activate prior knowledge and frame today’s lesson.

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Introduction (10 minutes)

Presentation & Discussion: Core Concepts

• Explain genetic inheritance: chromosomes, DNA, traits passed from parents (including height, eye colour, predispositions).
• Outline lifestyle factors: nutrition, exercise, sleep, substance use, stress.
• Use clear examples:
  • Genetic: Cystic fibrosis affecting lung development.
  • Lifestyle: Malnutrition impacting height and cognitive skills.

Incorporate a visual diagram showing genetics and lifestyle as two overlapping circles influencing growth.

Prompt questions:

• "Can two siblings with the same genes develop differently? WHY?”
• “How might lifestyle override genetic tendencies?”

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Main Activity (20 minutes)

Case Study Analysis and Role Play

1. Case Studies (10 minutes)
   Provide each student a short case study describing a person at a different life stage (childhood, adolescence, adulthood, older adulthood) with a focus on genetics and lifestyle factors affecting their growth.

   Examples:

   • Child with inherited tendency for type 1 diabetes struggling with diet.
   • Teen athlete balancing training and study impacting growth and mental wellbeing.

2. Role Play & Discussion (10 minutes)
   Students role play one character advising the other on lifestyle choices that can mitigate or enhance genetic influences.

   • One student plays a health advisor; the other, the individual in the case study.
   • After 5 minutes, swap roles with a second case.

Teacher guides reflection:

• “What strategies did the advisor suggest?”
• “How realistic are these for the individual’s circumstances?”

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Plenary (10 minutes)

Myth Busting & Summary

• Present common myths regarding genetics and lifestyle (e.g. “You can’t change your genes, so your future health is fixed”).
• Students discuss and correct each myth with evidence from lesson.
• Summarise key takeaways:
  • Both genetics and lifestyle shape growth.
  • Lifestyle choices can significantly influence outcomes despite genetic predispositions.

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Independent Reflection & Homework (5 minutes)

Students complete a short reflective journal prompt:

• “Identify one genetic factor and one lifestyle factor that might affect your own growth or development. How can you make positive choices?”

Homework: Research one genetic disorder and suggest lifestyle ways to manage its impact on development.

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Assessment & Feedback

• Formative Assessment:
  Observation and questioning during brainstorming, case study discussions, and role plays.
• Summative Assessment:
  Reflective journal and homework submission.

Feedback will focus on accurate understanding of genetics and lifestyle interplay, use of scientific and social knowledge, and quality of evaluative reasoning.

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Resources Needed

• Whiteboard and markers
• Printed case studies (2 per student)
• Visual diagram handout of genetics vs lifestyle influence
• Reflection journal templates or exercise books

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Differentiation & Inclusion

• Tailor case studies complexity to student prior knowledge.
• Use clear, accessible language with visual aids.
• Encourage peer support during role play.
• For students with additional needs, allow oral responses or mind maps for reflection.

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Cross-Curricular Links

• Science (Biology): Understanding genes and heredity mechanisms.
• PE: Effects of exercise on development.
• Citizenship/PSHE: Making informed decisions about health and wellbeing.

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This lesson empowers students to appreciate the complexity of human development, equipping them with knowledge and skills to critically assess personal and societal influences on growth. The interactive, scenario-based learning cultivates deeper engagement and retention in line with the National Curriculum for England.