HUMAN BODY (FEEDING SYSTEM – THE MOUTH)

TITLE:  LESSON NOTE ON BASIC SCIENCE AND TECHNOLOGY

SUBJECT: BASIC SCIENCE AND TECHNOLOGY

TERM: SECOND TERM

WEEK: WEEK 8

CLASS: PRIMARY 4

NAME OF TEACHER:

DATE:          

AGE OF STUDENTS:

CLASS COMPOSITION: Slow and fast learners.

PERIOD:

TIME: 40 MINUTES

TOPIC: HUMAN BODY (FEEDING SYSTEM – THE MOUTH)

Units:

• The teeth
• The tongue
• The lips

PERFORMANCE OBJECTIVES

At the end of this lesson, Pupils should be able to:

1. Name and Identify different types of teeth.
2. The usefulness of the tongue in feeding.
3. Learn about the Lips in feeding.

TEACHING AND LEARNING MATERIALS

• A pack of Biscuit
• Whiteboard/Chalkboard
• Explanatory posters/pictures of Teeth, tongue and lips.
• Explanatory videos

TEACHING AND LEARNING METHODS

• Explanation
• Discussion
• Questions and answer

REFERENCE MATERIALS

• NERDC Basic Education Curriculum for primary schools.
• Universal Basic Education Curriculum for primary schools.
• Lagos State Scheme of Work for Basic Science and Technology.
• Unified Schemes of Work for Lagos State Primary Schools (MIDDLE BASIC)
• Online Materials.
• Edudelight Basic Science and Technology for Primary Schools.

ENTRY BEHAVIOUR/ PREVIOUS KNOWLEDGE: the students are familiar with water.

WORD FILE:  Incisor, Canines, Premolars, Moloars

                             LESSON CONTENT

                              THE MOUTH

The Human Feeding System is the mouth. The mouth is an essential part of the human body because digestion start from the mouth, if we don’t have mouth then as human we will not be able to eat, talk and laugh. The mouth consist of the lips, tongue and teeth.

THE TEETH
Human teeth comes in different sizes and shapes. Human have four types of teeth. These are:

1. Incisor
2. Canines
3. Premolars
4. Moloars

INCISORs

Incisors are eight in numbers that is four each in the upper and lower region. Incisors are the first front teeth in our mouth.

Uses of Incisors: they are used for biting and cutting food into pieces.

CANINES

Canines are four in numbers that is two each in the upper and lower jaw. Canines are the sharp pointed teeth next to the incisors on both sides.

Uses: used for tearing and cutting.

PREMOLAR

Premolar are eight in numbers that is four each in the upper and lower jaw. Premolars are flat on the surface. They are the next teeth to the canine on both sides.

Uses: used for grinding and chewing.

MOLARS

Molars are twelve in numbers that is six each in the upper and lower jaw. Premolars are flat on the surface. They are the last teeth after the premolars. They are also have a flat surface.

Uses: used for chewing and grinding.

SETS OF TEETH

There are two categories of teeth, these are:

1. Temporary or Milk teeth: this is the first set of teeth in children.
2. Permanent Teeth: this is the set of teeth in adult.

Note: An adult has thirty two teeth (32).

THE TONGUE

The tongue is very important to human because we use it for the following

1. For tasting
2. To support movement of food in the mouth.
3. To mixed food with saliva to soften it.
4. To support swallowing of food into the gullet.

THE LIPS

The lips are two fleshly edges of the mouth.

Functions of the lips

1. They help us in speaking.
2. The prevent food from pouring out of the mouth.
3. They are the gate to the mouth.
4. They protect the teeth and tongue.
5. Lips beautifies human.

INSTRUCTIONAL PROCEDURE

• The Teacher revises the previous lesson (WATER).
• The teacher introduces the lesson through question and answer (HUMAN BODY – FEEDING SYSTEM).
• The Teacher explains the lessons.
• The Teacher writes the note on the board.

LEARNERS ACTIVITIES

Learners participate in the class discussion

LESSON EVALUATION

Teacher ask the learners to:

1. Name and identify the different types of teeth human teeth.
2. Mention three usefulness of the tongue in feeding.
3. List three roles f Lips to human.

CONCLUSION: the teacher summarize the lesson.

PREVIOUS LESSON: WATER

NEXT LESSON: FOOD (TYPES AND USES)