Электронная презентация к уроку "Dental Health", 10 класс Spotlight

Look at the picture and the words. Try to predict what we are going to talk about.

enamel

calcium

toothpaste with fluoride

milk teeth

permanent teeth

tooth decay

acid bacteria

• What is the theme of

our lesson?

Dental Health

Match the words with their definitions

• Enamel
• Calcium
• Toothpaste with fluoride
• Milk teeth
• Permanent teeth
• Tooth decay
• Acid bacteria

• A  silver-white metal,  that   helps to  form  teeth, bones  and  chalk    
• The  hard  surface  of  your   teeth .
• “ Baby  teeth”-the  first  set  of   teeth  in  the  life  of  a  human.
• Destruction of  the  organic matter  of  the  tooth  by  the  bacteria.
• A  liquid  chemical  substance. Some  types  of  it  can  damage  your  teeth.
• A  substance  used  for cleaning   your  teeth.
• A  chemical  that  helps  to  protect  teeth  against decay.

• The  second  set  of  teeth,  formed  in  humans.

What is the aim of our lesson? Use the following set of words to formulate it. The aim, to develop , communicative, is, competence

• The aim of the lesson is to develop pupils’ communicative competence.

What should we do to achieve the lesson’s aim?

• Learn new words and phrases.
• Practice their correct pronunciation and usage in speech.
• Read texts and elicit the meaning of some unknown words using the context.
• Complete some gaps in the texts using new words.
• Compare answers with a model and partners.
• Make a quiz about teeth

Did you know…?

• Teeth  are  made  of  the  hardest  

• Pigs  have  44  teeth.
• Humans  grow  two  sets  of  teeth  in

material  in  the  body - enamel.

  their  life:  milk  teeth(about  20)  and

• To  develop  good  enamel,  you  

need  calcium – so  drink  milk.

  permanent  teeth (about  32)

• Tooth  decay  is  caused  by  the

• To keep your teeth  in  good  condition,  use  a  

  acid that the  bacteria  in  the  mouth  make  from  

toothpaste  with  fluoride.

sugar  we  eat.  

Answer the questions

• Teeth are made of enamel.
• Milk contains calcium which we need to develop good enamel.
• We use a toothpaste with fluoride to keep our teeth in good condition.
• 4. People grow two sets of teeth in their life: milk teeth and permanent teeth.
• They have about 20 milk teeth.
• People have about 32 permanent teeth.
• Tooth decay is caused by the acid that the bacteria in the mouth make from the sugar we eat.

• What are teeth made of?
• Why is it so important to drink milk?
• Which toothpaste do we need to keep our teeth in good condition?
• How many sets of teeth do people have?
• How many milk teeth do children have?
• How many permanent teeth do people have?
• What is tooth decay caused by?

What are the words used to label the diagram in Russian?

Keys

Ex.2b, p. 116 Use the words to complete the gaps (1-8). Listen and check.

Keys

• 1) crown
• 2) root
• 3) gum
• 4) jaw bone
• 5) enamel
• 6) dentin
• 7) pulp
• 8) cementum

Explain the words in bold

• Crown
• Root
• Fasten
• Outer
• Substance
• Layer
• Blood vessel
• Nerve
• Securely

• A visible part of a tooth.
• An unseen part of a tooth
• Keep something in place.
• The outside of…
• Material
• Level, part
• The narrow tubes that blood flows through
• Long thin fibres that send messages to the brain, body.
• Safely

Ex.3a, p. 116 Types of teeth

Ex. 3b, p. 116

• Incisors
• Canines
• Molars

Ex.3, p. 116 Explain the words in bold.

• bite
• grasp
• tear
• chew
• grind

• use teeth to cut into smth
• hold firmly
• pull into pieces
• use teeth to break up food in your mouth
• crush

Reflection

• Have we achieved our lesson’s aim?
• What have you learnt ?
• What was interesting to discover?

Finish the following sentences.

It was interesting to know that …

It was useful for me…

I have learnt that…

Hometask

Ex.4, p. 116 Make a quiz about teeth:

• Write 5 questions using the information from p.116.
• Write 10 questions using the information from p.116.
• Write 12 questions using additional information from the Internet.

Follow the example

QUIZ

Choose one of the answers A, B or C to complete this quiz on teeth.

Our teeth are made of…

A acid B fluoride C enamel

Thank you for your work. Have a nice day!