Lesson 3: Investigating dental hygiene

Investigating the effectiveness of toothbrushes and the role of evaluation in scientific progress.

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Learning objectives

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Success criteria

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National curriculum

Cross-curricular links

Before the lesson

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Lesson plan

1. Recap and recall

Display the Presentation: True or false? and ask the children to decide with a partner if each statement is true or false. Encourage them to discuss how to turn an identified false statement into a true one.

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Teach in presentation mode

Adaptive teaching

Assessing progress and understanding

Vocabulary definitions

In this unit

Assessment – Science Y4: Digestion and food Lesson 1: The human digestive system Lesson 2: Human teeth

Lesson 3: Investigating dental hygiene

Lesson 4: Teeth of carnivores, herbivores and omnivores Lesson 5: Producers, predators and prey in food chains Lesson 6: Poo clues

Created by:

Kapow Primary Team

Our team comprises experienced classroom teachers who love the foundation subjectsFind out more

Maintained by: Kapow Primary teamLast update: 3 July 2026

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