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      Lesson details

      Learning outcome

      I can describe why it is important for humans to look after their teeth.

      Key learning points

      1. Personal hygiene is the way we care for our bodies including brushing our teeth.
      2. Plaque is a sticky substance made up mostly of the germs that cause tooth decay.
      3. Avoiding sugary food and visiting the dentist regularly helps to keep teeth healthy.
      4. To have healthy teeth and gums, we should brush our teeth twice a day.

      Keywords

      • Hygiene - Hygiene means keeping yourself and where you live clean.

      • Teeth - Teeth are used to break down food before it is swallowed.

      • Plaque - Plaque is a sticky substance that forms a coating on your teeth and gums.

      • Gums - The gums are the part of the mouth in which our teeth are fixed.

      • Decay - Living things decay when they die, meaning they gradually break down and rot away.

      Common misconception

      The idea of health only relates to physical health, in particular ‘fitness’.

      Explanation that there are different ways of staying healthy and the importance of teeth brushing.

      Teacher tip

      Using disclosing tablets is a great way for pupils to see whether they have any plaque on their teeth and which areas they need to brush more frequently.

      Equipment

      Plates, shoe polish, brushes, mirrors and pupils's own toothbrushes and toothpaste from home.

      Content guidance

      Depiction or discussion of sensitive content

      Supervision

      Adult supervision recommended

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      How can humans live a healthy life?

      By playing more computer games.
      Correct answer: By being active and eating a variety of foods.
      By only drinking water.

      Q2.
      Washing your hands or having a shower are both examples of ...

      Correct answer: good personal hygiene.
      bad personal hygiene.
      no personal hygiene.

      Q3.
      Which of these helps scientists to look at germs?

      a pair of binoculars
      a telescope
      Correct answer: a microscope

      Q4.
      Germs are invisible. Why is this a bad thing for humans?

      Humans want to see germs.
      Correct answer: Humans can spread germs easily without knowing.
      Humans cannot find germs.

      Q5.
      Scientists try to prevent germs from spreading. What does prevent mean?

      To help something to happen.
      To make something happen more.
      Correct answer: To stop something from happening.

      Q6.
      Which of these statements is true?

      Hand washing is important because soap smells nice.
      Correct answer: Hand washing is important because it can remove germs.
      Hand washing is important because it is not nice to see dirty hands.

      6 Questions

      Q1.
      Which of these helps you to have good personal hygiene?

      playing football
      eating fruit
      Correct answer: brushing your teeth

      Q2.
      How many times a day should we brush our teeth?

      Correct Answer: twice, two times, 2 times, 2, two

      Q3.
      As well as brushing your teeth, how else can you keep your teeth healthy?

      Correct answer: visiting a dentist
      playing lots of sports
      taking a shower
      Correct answer: avoiding sugary food

      Q4.
      What is plaque?

      Correct answer: a sticky substance that damages your teeth
      a way of keeping fit
      a kind of vegetable

      Q5.
      Plaque is made up mostly of the germs that cause tooth .

      Correct Answer: decay

      Q6.
      To have healthy teeth and , we should brush our teeth twice a day.

      Correct Answer: gums

      To help you plan your 2 science lesson on: Brushing teeth, download all teaching resources for free and adapt to suit your pupils' needs...