THE TEETH
THE TEETH AND THEIR FUNCTIONS
The teeth are very important body parts. They are found in our mouth.
There are four main types of teeth, namely: incisors, canines, premolars and molars.
Our teeth can be further described as temporary or permanent.
Babies are born with a set of teeth called temporary teeth or milk teeth. At about age six, most children start to change or lose their temporary teeth. Some of the permanent teeth will start to grow.
At about age twelve, children lose all their temporary teeth. These teeth are replaced by permanent teeth. The permanent teeth are incisors, canines, premolars and molars.
The white part of the teeth you see is called the enamel. It covers only the crown of the teeth. The enamel is the hardest material in our body. The other part of the teeth you cannot see is called the root.
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1. https://www.liveworksheets.com/jz1031948bl
2. https://www.liveworksheets.com/worksheets/en/Natural_Science/Teeth/NUTRITION_3_-_teeth_rs54240er
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4. https://www.liveworksheets.com/worksheets/en/Science/Teeth
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13. https://www.liveworksheets.com/worksheets/en/Natural_Science/Teeth/NUTRITION_3_-_teeth_rs54240er When teeth appear
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16. https://www.liveworksheets.com/worksheets/en/Science/Body_parts/Our_teeth_bs649774bq
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24. https://www.liveworksheets.com/cv1191404cf Functions of Teeth
How To Take Care Of Our Teeth
Grade:
3
Topic:
Teeth Types: Temporary vs. Permanent Teeth
Lesson
Duration: 1 hour
Objectives:
- Students will be able to identify the different types
of teeth (incisors, canines, molars, premolars).
- Students will be able to distinguish between temporary
(primary, milk, baby) and permanent teeth.
Materials
Needed:
- Teeth models or charts
- Pictures of children and adults’ teeth
- Tooth-shaped cutouts or drawings
- Worksheets for the comparison chart
- Worksheet for matching, sorting, and short answer
activities
- Projector
- Chromebooks
- Textbook Grade 3
Engage
(10 minutes):
- Introduction:
- Ask students to smile at each other and observe their
teeth.
- Show them a picture of a smiling face, highlighting
the teeth.
- Ask questions like:
- "Why do you think we
have different shapes of teeth?"
- "Do you know why you
lose your teeth as a child and then get new ones?"
- Discussion:
- Talk about the fact that humans have two sets of teeth
in their lifetime: baby (primary) teeth and adult (permanent) teeth.
- Explain that different types of teeth have different
functions.
Explore
(15 minutes):
- Teeth Models or Charts:
- Provide students with diagrams of the mouth that show the
different types of teeth.
- Divide them into groups and have them explore the
diagrams. Ask them to identify different teeth shapes and guess their
functions.
- Guided Observation:
- Ask each group to observe and compare the different
teeth (incisors, canines, molars, premolars).
- Discuss their shapes and functions (incisors for
cutting, canines for tearing, molars and premolars for grinding).
- Watch diagrams shown on teacher’s blogsite and engage
in discussion.
Explain
(15 minutes):
- Teeth Types Explanation:
- Use a chart or projection to explain the four types of
teeth:
- Incisors: Used for cutting food.
- Canines: Pointed teeth used for
tearing food.
- Premolars: Used for crushing food.
- Molars: Large teeth used for
grinding food.
- Temporary vs. Permanent Teeth:
- Explain the difference between baby teeth (temporary)
and adult teeth (permanent).
- Show pictures of a child’s teeth and an adult’s teeth,
pointing out how they differ in number and size.
- Key Points:
- Baby teeth start falling out around age 6 to make room
for permanent teeth.
- An adult has 32 permanent teeth, while a child has
only 20 temporary teeth.
Elaborate
(10 minutes):
- Group Activity:
- Provide students with tooth-shaped cutouts or drawings
of different types of teeth.
- Ask them to label each tooth and identify whether it
belongs to a set of temporary or permanent teeth.
- Comparison Chart:
- On a worksheet, have them compare the number of baby
teeth and adult teeth by completing a table.
- Complete oral exercise from teacher’s blogsite
Evaluate
(10 minutes):
Three-Tier Evaluation Activity:
- Tier 1 - Matching Game:
- Provide students with images of the four types of
teeth and descriptions of their functions.
- Ask them to match the correct image with the function.
- Tier 2 - Sorting Activity:
- Give students pictures of a child's and an adult's
mouth with teeth drawn in.
- Ask them to circle the baby teeth in one picture and
the permanent teeth in the other.
- Tier 3 - Short Answer:
- Have students answer two questions:
- "What is the difference
between baby teeth and permanent teeth?"
- "Why do we have
different types of teeth?"
Reflection:
- Ask students to share one interesting fact they learned
about teeth today.
- Reinforce the importance of taking care of both baby
and permanent teeth.
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