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29 July 2014
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Schools Home > Teachers > KS2 Lesson Plans > Science > Teeth and eating

Teeth and eating - lesson plan

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Objectives

A boy smiling
  1. To understand that different animals have different diets.
  2. To know that animals have different kinds of teeth because they have different diets.

National Curriculum

Sc2, 2a.

Resources

You will need Adobe Acrobat reader to access the PDF files. BBC Webwise has a complete guide to downloading and installing Adobe Acrobat reader.

Teaching activities

Introduction

  1. Ask the children to complete the Bitesize teeth and eating quiz to assess their learning.
  2. Watch Learning Zone Class Clips - Different teeth for different purposes.
  3. Ask the children to name the types of teeth. Ask the higher ability group to name their functions.
  4. Give the children pictures of different animals with different diets (eg cat, rabbit, shark, robin, cow) and ask them if all these animals eat the same food.
  5. Give the children pictures of the food these animals eat (mice/small birds, lettuce/seeds, seals/fish, worms/grubs and grass/hay) and ask them to match the animals to their diet. Which animals only eat plants? Which only eat meat?

Activity


  1. Show the children plasticine models of pairs of upper and lower incisor teeth (thin edges joined together for cutting), canine teeth (pointed edges for tearing) and molar teeth (two flat edges for chewing and grinding). Use the scientific names of teeth for higher ability children.
  2. Demonstrate the action of the model teeth working and ask the children which teeth would be most useful for cutting grass (incisors), chewing grass (molars), tearing meat (canines), and chewing meat (molars).
  3. Ask the children to work in pairs and decide which kinds of teeth plant-eaters need and which kinds meat-eaters need.
  4. Explain to the children that you are going to look at the jawbone and teeth of a cat and a rabbit and try to work out which is which just by looking at their teeth.
  5. Ask the children - What kind of teeth can they see in each jaw? What would these teeth be useful for? Which do they think is the cat's jawbone and which is the rabbit's and why?
  6. Ask the children to use the Bitesize teeth and eating activity in pairs to match up 'dentures' with animals and their diets.

Plenary


  1. Go through the Bitesize teeth and eating activity on an interactive whiteboard.
  2. Ask the children how each set of dentures helps the animal to eat its food.
  3. Ask the children to share with the class any other facts they have discovered from the activity about different sets of teeth.

Extension


Ask the children to watch Learning Zone Class Clips - Teeth and feeding several times and then create a table of the animal showing type of diet and type of teeth.

Homework


Ask the children to find other plant-eating animals (herbivores) and what they eat, and other meat-eating animals (carnivores) and what they eat.

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