Energy Balance Model

Overview

This 50-minute lesson introduces Year 10 students to the energy balance model and explores the benefits of monitoring diet, nutrition, and physical activity for managing a healthy weight. The lesson follows the NSW Health and Physical Education syllabus, aiming to develop students' understanding of healthy lifestyle choices through discussion, note-taking, and practical reflection.

Curriculum Links

• NSW PDHPE Stage 5 (Years 9-10): Focus on managing health and fitness, including nutrition and physical activity for health and wellbeing.
• Content focus: Investigate factors influencing healthy eating and exercise for maintaining a healthy weight.
• Skills: Critical analysis, reflection, discussion, and note-taking in health contexts.
• Outcomes related:
• Plan and practice skills and strategies to manage personal health and fitness.
• Analyse factors that influence health behaviors related to diet, nutrition, and physical activity.
• Describe how diet and physical activity contribute to maintaining a healthy body weight and overall health.

Learning Objectives

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

1. Define the energy balance model, including energy intake and energy expenditure.
2. Discuss the role of diet, nutrition, and physical activity in managing a healthy weight.
3. Identify benefits of regularly monitoring diet and physical activity.
4. Develop note-taking skills through structured activities and engage in thoughtful discussion.

---

Lesson Breakdown

Time	Activity	Description	Resources/Notes
0-5 min	Introduction & Aim	Introduce today’s topic: "Energy Balance Model and Healthy Weight Management." Pose a question to activate prior knowledge: "What do you think influences your body weight?"	Whiteboard/Smartboard to jot responses
5-15 min	Explain Energy Balance Model	Teacher-led explanation covering: Energy intake (food, drinks) vs energy expenditure (basal metabolism, physical activity, thermic effect of food). Use a simple diagram. Discuss concepts of positive, negative, and neutral energy balance.	Pre-prepared diagram, PowerPoint slide or poster
15-30 min	Note-taking Activity - Model Application	Hand out a worksheet that asks students to: 1) Define key terms; 2) Match examples of food and activities with energy intake/output; 3) Reflect on what happens if the balance shifts. Allow guided individual note-taking.	Worksheet handout, pens
30-40 min	Small Group Discussion	In groups of 4-5, students discuss: "How might monitoring diet, nutrition, and physical activity help manage body weight?" and "What are practical benefits of tracking these regularly?" Each group to prepare 2-3 points to share with class.	Group worksheet or prompt cards
40-47 min	Whole Class Sharing & Debrief	Groups share their points. Teacher highlights key benefits such as improved health awareness, prevention of obesity, and motivation for healthy choices. Emphasise lifelong skills for self-monitoring.	Whiteboard for summary
47-50 min	Summary & Exit Task	Summarise lesson’s key points and assign an exit task: Students write down one strategy they could use to monitor their own diet or activity this week.	Students’ own notebooks

---

Teaching and Learning Strategies

• Note-taking emphasis: Provide students with clear structure and terminology guides to develop their notes.
• Visual learning: Use diagrams to clarify abstract concepts like energy expenditure and intake.
• Collaborative learning: Group discussions encourage sharing personal views and deepen understanding.
• Reflective practice: Exit task promotes application beyond the classroom and personal accountability.

---

Differentiation

• Provide additional scaffolding for students who need support, such as fill-in-the-blank notes.
• Challenge advanced students to consider wider social or environmental factors influencing energy balance.

---

Assessment for Learning

• Monitor engagement during note-taking and group discussions.
• Collect exit task for a quick formative check on individual understanding.
• Observe quality and depth of contributions in group and class discussions.

---

Notes on NSW Curriculum Standards

This lesson aligns with the NSW PDHPE Stage 5 Syllabus which expects students to develop the ability to analyse factors influencing their health and to acquire skills to manage their health, including nutrition and physical activity monitoring. Students explore the concept of energy balance as part of understanding diet and fitness, promoting lifelong healthy habits.

Key capabilities developed: literacy (note-taking and discussion), critical thinking (analysis of benefits), personal and social capability (health self-management) aligned with Australian Curriculum cross-curricular priorities.

---

This lesson strikes a balance between scientific understanding and practical application tailored for Year 10 students, incorporating reflective and collaborative pedagogies that support active learning in health education.