Happy New year and Happy Resumption. This is inform you that our contents are under review to meet the new set standards as stated in Lagos State Scheme of Work 2021 Edition.

# Simple Machines – Meaning, Parts and Uses Levers (Primary 6)

BASIC TECHNOLOGY

BASIC SCIENCE AND TECHNOLOGY

THIRD TERM

WEEK 2

PRIMARY 6

PREVIOUS LESSON – Meaning of Safety and Accidents (Primary 5 and Primary 6)

TOPIC: LEVERS

LEARNING AREA

1. Definitions of simple machine

2. Levers (Meaning)

3. Example of Lever

4. Parts of Lever

5. Uses of Lever

PERFORMANCE OBJECTIVES

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

1. collect and identify simple machines;

2. identify the parts of the lever;

3. list common uses of levers.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Bottle opener

2. Can opener

3. Scissors; Pliers

4. Chart/diagram of some common levers/li>

5. Nucracker

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

Relevant link – Third Term Scheme of Work and Plan Lesson Note for Basic Science and Technology Primary 4, Primary 5 and Primary 6 Links

CONTENT OF THE LESSON

LESSON ONE – INTRODUCTION

A machine is a simple object which makes our work easier to do.

Many objects in the school and at home such as a pair of scissors, bottle opener and cutlass, are examples of simple machines.

In science, anything that makes us to use less energy to do much work or overcome a large force is called a machine.

Examples of simplest machines are the levers and pulleys.

MEANING OF LEVER

A lever is a simple machine that has the point of motion where effort can be made to carry a load.

EXAMPLES OF LEVER

1. Seesaw

2. Scissor

3. Crowbar

4. Hammer

5. Nut cracker

7. Pliers

8. Hockey stick

9. Wheel barrow

10. Door handle

11. Dolly

12. Hole puncher

LESSON TWO – PARTS OF LEVER

The three most important parts of a lever are:

2. Effort

3. Fulcrum or Pivot.

Teacher’s Activities – Guides pupils to identify load, effort and fulcrum in the listed examples of levers.

USES OF LEVER

1. Seesaw is used to have fun with a friend;

2. Scissor is used for cutting;

3. Crowbar used for split something apart or take out nails;

4. Hockey stick used to play hockey;

5. Wheel barrow is used move dirt or anything else;

6. Door handle is used to get through a door;

7. Dolly it is used to move heavy boxes and freight;

8. Hole puncher it is you for making hole on belt; etc.

Teacher’s Activities – Asks pupils mention the important uses of each of the lever listed above – examples of lever.

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. Collects examples of levers for pupils to identify;

Pupil’s Activities – Collect and identify some simple machines;

Pupil’s Activities – Take turns to play with lever, e.g. the see-saw and explain how it works;

Pupil’s Activities – Make and use simple lever.

3. Name and group; Guides pupils to identify parts of lever;

Pupil’s Activities – Draw the different types of lever and identify the parts;

Pupil’s Activities – List common uses of levers.

4. Summarizes the major points on the board;

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 –

LESSON EVALUATION

Pupils to:

1. Name five common levers and machines in their homes;

2. Locate the pivot (fulcrum) load and effort arms in common lever machines;

3. State five common uses of levers.