LO To classify different types of teeth and their functions Starter Activity you will need a mirror Using the mirror count how many teeth are in your mouth and then count how many teeth are an adults mouth ID: 931246
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Slide1
LESSON 1 - TEETH
Slide2Teeth!
The first president of the United States of America, George Washington, wore false teeth made out of teeth from a cow, hippopotamus and walrus!
LO: To classify different types of teeth and their functions.
Slide3Starter Activity
- you will need a mirror
Using the mirror count how many teeth are in your mouth and then count how many teeth are an adults mouth.
Why do adults and children have different amounts of teeth?
LO: To classify different types of teeth and their functions.
Slide4It's because as mammals we develop 2 sets of teeth during our life time! Milk (or baby) teeth, which fall out and are replaced with our permanent teeth.
In total we have:
20 Milk teeth
32 Permanent teeth (Unless we don't look after them and they fall out!!!)
Do all adults have the same amount of teeth?No, not everyone has
wisdom teeth. Many studies have been conducted and it is thought that around one third of adults do not have wisdom teeth. Some people don't have the full set of 4.What are wisdom teeth?
Wisdom teeth are an extra set of molars that typically form behind the standard first and second set of molars in the jaw and arrive between the age of 17 and 25 years in adults but can much be later.
LO: To classify different types of teeth and their functions.
Slide5Question: What do we use our teeth for?
Answer: breaking down food so we can swallow it and it can be more easily digested!
Teeth are made from a very hard substance called enamel which is the hardest in the body.
Why might this be?
LO: To classify different types of teeth and their functions.
Slide6Using your mirror or your helper have a look at the different types of teeth in your mouth.
H
ow many different shaped teeth can you see?
Why do you think we have different types of teeth?
LO: To classify different types of teeth and their functions.
Slide7Incisors:
These are our front teeth and used for pulling and tearing food
Humans have 4 different types of teeth.
Slide8Canines:
These are the teeth that are used for gripping food and tearing meat
Slide9Molars and Pre molars:
used for grinding food
Slide10Milk Teeth
Our first set of teeth are known as our milk teeth.
There are 20 teeth in total at this point:
eight incisors, four canines, four premolars and four molars.
Permanent Teeth Between 6 and 12 years old, our milk teeth are gradually replaced with permanent teeth.
There is a third set of molars called ‘wisdom teeth’ which appear in our late teens – although they may not come through at all. This means adults have 32 teeth. The jaw gets bigger as we grow older, so there is space for those teeth to appear.
The human mouth contains 12 molars, eight premolars, four canines and eight incisors.
LO: To classify different types of teeth and their functions.
Slide11LO: To classify different types of teeth and their functions.
TASK:
1. Copy or print out the picture of teeth below.
2. Label the different type of teeth and write what function they have.
.
Challenge:
Mark an X on any teeth that you don't have yet.
Write a short sentence on how many teeth you have in your mouth and why that might be.