Human Body – The Feeding System (Mouth – Teeth, Tongue and Lips) Primary 4 (Basic 4) – Basic Science and Technology

Last Updated on March 7, 2021 by Alabi M. S.

 

 

GENERAL INFORMATION

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY 

SECOND TERM 

WEEK 8

PRIMARY 4

THEME –  LEARNING ABOUT OUR ENVIRONMENT 

 PREVIOUS LESSON – WATER EVAPORATION AND CONDENSATION

 

TOPIC – HUMAN BODY (MOUTH – THE FEEDING SYSTEM) – THE TEETH, TONGUE AND LIPS 

 

LEARNING AREA

1. Introductory Activities

2. Types of Teeth

3. The Tongue and The Lips

4. Weekly Assessment

 

PERFORMANCE OBJECTIVES

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –

1. name the types of teeth in the mouth.

2. locate the relative positions of teeth in the mouth.

3. mention the uses of each type of teeth.

4. state the role of the tongue in feeding.

5. state the role of the lips in feeding.

 

ENTRY BEHAVIOUR

Parts of the Body for feeding

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1 Pieces of bread

2. Slices of boiled yam

3.Mirror

4. A chart of the human teeth

5. Model of the Mouth

 

 

METHOD OF TEACHING 

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

 

REFERENCE MATERIALS

Scheme of Work

9 – Years Basic Education Curriculum

Course Book

All Relevant Material

Online Information

 

WRITING INSTRUCTIONS

Copy as I write or draw as I need. This instruction should be given when you need the pupils to write or draw.

 

CONTENT OF THE LESSON  

LESSON 1 – INTRODUCTORY ACTIVITIES

PARTS OF THE BODY USED AS FEEDING SYSTEM 

Teacher’s Activities – Ask the pupils to identify the parts of the body used eating and drinking.

Pupil’s response – Mouth – tongue, teeth and lips.

Teacher’s remark – The mouth contains the teeth, tongue, saliva and lips used for eating, tasting and easy chewing or grinding. Display chart showing the teeth and discuss.

 

THE TEETH 

Teacher’s Activities – Ask the pupils to show their teeth. Display a chart showing the teeth and discuss each parts.

Pupil’s response – Identify the teeth and participate in the discussion.

Teacher’s remark – A great cheer for active participation and note the points of discussion on the board.

 

On board, copy as I write.

Teeth are arranged in rows on the upper and lower jaws of the mouth.

The human teeth function to mechanically break down items of food by cutting and crushing them in preparation for swallowing and digesting.

 

 

There are four (4) types of teeth, namely – incisors, canines, premolars and molars.

 

On board, copy as I write.

TYPES OF TEETH AND THEIR LOCATION 

1. Incisors are located at the front row.

They are thin and sharp and used for biting and cutting food.

 

2. Canines are located immediately after incisors.

They are sharp and pointed and used for tearing fleshy food.

 

3. Premolars and molars are located at the back of the mouth.

Premolars are after canines and follow by the molars.

They are flat and used for grinding and crushing food.

 

LESSON 2 – THE TONGUE AND LIPS 

Teacher’s Activities – Ask the pupils to show their tongue and lips. And discuss.

Pupil’s response – Quick response.

Teacher’s remark – A great cheer for quick response and note the points of discussion on the board.

 

On board, copy as I write.

 

THE TEETH

The tongue is in between the upper and lower jaws of the mouth.

It is used for tasting, chewing and swallowing food.

The teeth is also used for speech.

 

THE LIPS 

There are two (2) lips.

The upper lip and lower lip.

The two (2) lip are connected together. It is used to hold food and water.

They are also used to prevent unwanted objects coming into the mouth.

 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Shows pupils the types of teeth.

Pupil’s Activities – Work in pairs to identify and locate the types of teeth in their mouths.

 

 

2. Initiates and guides class discussions on – the uses of the different types of teeth and the roles of the tongue and lips in feeding.

Pupil’s Activities – Chew some pieces of bread, or garri and note the type of teeth used for chewing and feel the texture of the food items before and after chewing.

Pupil’s Activities – Discuss the uses of the teeth, lips, tongue and saliva in feeding.

 

CONCLUSION

  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

 

LESSON EVALUATION 

Pupils to:

1. name four different types of teeth in the mouth.

2. identify and locate the position of each type of teeth in the mouth.

3. state the uses of the different types of teeth in feeding.

4. describe the roles of the lips and tongue in feeding.

 

 

WEEKLY ASSESSMENT 

ATTEMPT ALL THE QUESTIONS 

 

1. _____________ are arranged in rows on the upper and lower jaws of the mouth.

A. Tongue

B. Lips

C. Teeth

 

2. There are _____________ types of teeth.

A. Four

B. Fourteen

C. Fourty

 

3. _____________ are located at the front row.

A. Incisors

B. Canines

C. Premolar and molar

 

4. Incisors are thin and sharp and used for _____________ and _____________ food.

A. Cutting and bitting

B. Cutting and bitting

C. Chewing and grinding

 

6. _____________ are located immediately after incisors.

A. Incisors

 

 

B. Canines

C. Premolar and molar

 

7. _____________ are sharp and pointed and used for tearing fleshy food.

A. Incisors

B. Canines

C. Premolar and molar

 

8. _____________ and _____________ are located at the back of the mouth.

A. Premolar and molar

B. Premolar and incisors

C. Premolar and molar

 

9. _____________ are after canines and follow by the _____________.

A. Premolars and incisors

B. Premolars and canines

C. Premolar and molar

 

10. _____________ are flat and used for grinding and crushing food.

A. Premolar and molar

B. Canines incisors

C. Incisors and molar

 

11. The _____________ is in between the upper and lower jaws of the mouth.

A. Tongue

B. Lips

C. Teeth

 

12. _____________ is used for tasting, chewing and swallowing food.

A. Tongue

B. Lips

C. Teeth

 

13. The _____________ is also used for speech.

A. Tongue

B. Lips

C. Teeth

 

14. There are _____________ lips.

A. Two

B. 2

C. Both

 

15. The lips are _____________ and _____________.

A. upper lip and middle lip

B. upper lip and lower lip

C. upper lip and side lip

 

16. The lips are connected together.

A. True

B. Yes

C. Both

 

17. _____________ are used to hold food and water.

A. Tongue

 

 

B. Lips

C. Teeth

 

18. _____________ are also used to prevent unwanted objects coming into the mouth.

A. Tongue

B. Lips

C. Teeth

 

19. _____________, _____________ and _____________ are parts of the mouth.

 

20. The lips are not really connected together.

A. True

B. False

C. Yes

 

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