The Human Body – The Feeding System, Mouth (The Teeth and Their Uses) Primary 4 (Basic 4) Term 3 Week 11 Basic Science and Technology

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY 

SECOND TERM 

PRIMARY 4

WEEK 11

THEME –  HUMAN BODY 

 PREVIOUS LESSON – Human Body – The Feeding System (Mouth – Teeth, Tongue and Lips) | The Uses of Lips and Tongue Primary 4 (Basic 4) Term 3 Week 10 Basic Science and Technology

TOPIC – THE FEEDING SYSTEM 

LEARNING AREA

1. Introduction

2. The Teeth

3. Types of The Teeth

4. The Uses of Different Types of the Teeth)

5. Lesson Evaluation and Weekly Assessment (Test)

PERFORMANCE OBJECTIVES

By the end of the lesson, most of the pupils should have attained the following objectives –

1. describe the teeth.

2. state types of teeth with their uses.

3. draw the mouth with the teeth, tongue and lips.

ENTRY BEHAVIOUR

The pupils can identify and state the uses of the teeth.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1 Pieces of bread

2. Slices of boiled yam

3. Mirror

4. 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

CONTENT OF THE LESSON  

LESSON 1 – INTRODUCTION 

The mouth is used for eating, speaking, breathing, digesting food, and smiling.

The teeth, tongue and lips are the major parts of the mouth.

They work together to enable us to eat, speak, breath digest food and smile.

THE TEETH 

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 32 adult teeth in total, 12 more than in the baby set.

The remaining 4 emerge later than the others, generally between the ages of 17 and 21.

TYPES OF TEETH AND THEIR LOCATION 

There are four (4) types of teeth, namely –

1. Incisors

2. Canines

3. Premolar

4. Molar

LESSON 2 – TYPES OF TEETH AND THEIR USES

1. INCISORS

There are 4 incisors on the top and 4 on the bottom jaw.

Incisors are located at the front row.

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

 

2. CANINES

Canine teeth is sharp and pointy teeth.

Canines are located immediately after incisors.

It is one on each side of your incisors on your top and bottom jaw, making a total of 4.

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

3. PREMOLARS

Premolars are next to the canine teeth.

They are called bicuspid teeth.

There are 8 premolars in total, that 4 on your top jaw and 4 on the bottom.

They are bigger and wider than your incisors and canine teeth, and are used for crushing and grinding food.

4. MOLARS

Molars are immediately after the premolar teeth.

They are flat and 12 in number, that’s 6 on top and 6 on the bottom.

Molar teeth are the strongest teeth.

They work with the tongue to help swallow food, mashing it up until it’s ready to be swallowed safely.

Molar teeth are used for grinding and crushing food.

LESSON 3 – REVISION AND WEEKLY ASSESSMENT (TEST) 

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. Teacher displays chart showing complete set of teeth.

3. Teacher organizes pupils in groups or pairs depending on the size of the class.

4. Teacher asks the groups or parts to identify and describe  the teeth.

Pupils Activities – Identify and describe the teeth.

5. Teacher uses the chart and pupil’s responses to introduce the lesson.

Pupil’s Activities – Pay attention to the lesson introduction to understand the concept of different types of teeth and their uses.

6. Teacher leads a discussion on the types of teeth and their uses.

Pupil’s Activities – Participate actively in the class discussion and analyze the importance of teeth as part of the mouth in feeding system.

7. Teacher guides pupils to draw and label different types of teeth.

8. Teacher summarizes the lesson on the board with appropriate lesson evaluation.

Pupil’s Activities – Participate activity in the summary of the lesson by responding correctly to the lesson evaluation and write as instructed.

CONCLUSION

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

• Next Lesson – Week 12 – Revision and Third Term Examination Basic Science and Technology Primary 4 (Basic 4) – Exam Questions,

LESSON EVALUATION 

Teacher ask pupils to:

1. describe what the mouth is used for.

2. identify different types of the mouth.

3. explain the teeth as part of the mouth.

4. state 4 types of teeth.

5. mention the number of each of the following:

• incisors

• canines

• molars

• premolars

6. mention the uses of the following:

• incisors

• canines

• molars

• premolars

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. Forty

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. Which of the following is the strongest teeth?

A. Premolars

B. Canines

C. Molars

State the uses of the following teeth:

12. Incisors

13. Canines

14. Premolar

15. Molars

Mention the number of each of the following:

16. Incisors __________

17. Canines __________

18. Molars __________

19. Premolars __________

20. __________ is the total number of adult teeth.