Teeth

What this chapter teaches

Incisors cut, canines tear and molars grind. Germs on the teeth feed on sugar and make acid, and acid makes holes in the tooth. Brushing twice a day for two minutes takes the sticky layer away. Milk teeth matter too.

Three questions to ask

There is no one right wording. Listen for the idea.

1. Which of your teeth would you use to bite an apple, and which to chew a bean?
2. How does sugar lead to a hole in a tooth?
3. Why should we clean milk teeth, even though they fall out?

After the chapter, the learner can

• Name incisors, canines and molars and the job of each
• Explain how sugar and poor cleaning cause tooth decay
• Show how to clean teeth with a brush or a chewing stick