Fats: Good & Bad

Overview

Duration: 40 minutes
Class size: 4 students
Unit: Fueling Our Bodies (Lesson 4 of 5)
Age group: Key Stage 2 (ages 9-10) – aligned with National Curriculum for Science and PSHE education
Curriculum references:

• Science (KS2):
  • Animals, including humans - Identify that animals, including humans, need the right types and amount of nutrition, and that they cannot make their own food; they get nutrition from what they eat.
  • Understand different nutrients and their roles, including fats.
• PSHE (Personal, Social, Health and Economic Education):
  • Making healthy lifestyle choices – understanding food types and their impact on wellbeing.

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Learning Objectives

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

1. Describe the three main types of fats: saturated, unsaturated, and trans fats.
2. Explain the effects of different fats on the body and overall health.
3. Identify common food sources of healthy fats.
4. Engage critically in a group discussion about choosing fats for a balanced diet.

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Resources

• Food flashcards showing images & examples of foods rich in saturated, unsaturated and trans fats
• Whiteboard or large flip chart and markers
• Paper plates and sticky notes
• “Fat Facts” info sheet (simple, child-friendly diagrams and key facts)
• Smoothie ingredients & recipe cards (optional take-home idea)
• Printed pupil worksheets: fat types and health impact

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Lesson Structure

1. Starter (5 mins) – What do you think?

• Begin with an open question: “Can you name some foods that have fat in them?”
• Briefly clarify misconception: "Is all fat bad for us?"
• Use food flashcards to show a variety of items: butter, avocado, crisps, nuts, margarine.
• Create a quick sorting activity on the board: “Which of these might be ‘good’ fats and which might be ‘bad’ fats?” Make this an initial guess to be revisited later.

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2. Main Teaching (15 mins) – Exploring the Types of Fats

• Introduce the three types of fats with simple, age-appropriate explanations:

  • Saturated fats: Mainly found in animal products, can raise cholesterol.
  • Unsaturated fats: Often found in plants and fish, help keep us healthy.
  • Trans fats: Found in some processed foods, are unhealthy and best limited.

• Use visual diagrams from “Fat Facts” sheets to show fat molecules (simple illustrations) and how they affect the body.

• Invite students to come up and place the food flashcards into the correct category on a three-column chart on the board.

• Discuss why unsaturated fats are called ‘essential’: the body needs them but cannot make them, so we must get them from food.

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3. Group Discussion (10 mins) – Healthy Fat Sources

• Put students into pairs (2 groups of 2) and give each pair some sticky notes.

• Prompt discussion questions:

  • “Which of these fats would you choose to eat more often? Why?”
  • “Can you think of meals or snacks that contain good fats?”

• Each pair writes their ideas on sticky notes and then posts them on the board under headings: “Good fats we like” and “Fats to limit”.

• Facilitate sharing ideas across the group and encourage respectful listening and reasoning.

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4. Activity: Create a Balanced Snack Idea (8 mins)

• Challenge students to invent a simple snack or meal that includes healthy fats (e.g., avocado on toast, nuts and fruit mix).

• Provide recipe cards for inspiration if needed.

• Students can draw or write their snack idea on paper plates provided.

• Invite each student to share their snack and why it is a good choice for ‘fueling our bodies’.

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5. Plenary (2 mins) – Key Takeaway Quiz

• Rapid-fire questions to consolidate learning, e.g.:

  • “Name one food rich in unsaturated fats?”
  • “Why should we avoid trans fats?”
  • “Are saturated fats always bad?”

• Praise students for participation and understanding.

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Assessment and Feedback

• Informal formative assessment throughout: observations during discussion and sorting task.
• Use peer feedback during sharing of snack ideas.
• Teacher to note any misconceptions and address in next lesson.

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Differentiation

• Provide visual aids and clear definitions for learners needing support.
• Carry out open-ended discussion to extend more confident students.
• Use kinaesthetic sorting activity for hands-on engagement.

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Cross-Curricular Links

• Maths: Quantifying fat intake using simple measuring examples (optional extension).
• Art: Illustrating healthy snacks on paper plates.
• English: Vocabulary development (nutrition words).

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Teacher Reflection:

This interactive, discussion-led lesson combines tactile resources and peer interaction to deepen understanding of fats beyond the simplistic ‘fat is bad’ view.
Leveraging visual sorting and creative snack design engages different learning styles in line with UK pedagogy principles of active learning and critical thinking.
Adjust timing as needed to allow more debate or practical activity depending on class dynamics.

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End of lesson plan.