Week 2: Simple Machines
Subject: Basic Science and Technology | Class: Primary 1 | Term: 3rd Term
Learning Objectives
By the end of the lesson, most of the pupils should be able to:
- Explain the meaning of simple machine.
- Identify and give examples of simple machines.
- Analyse the importance of simple machines in their communities.
Entry Behaviour
The pupils can state the uses of simple machines at home and in the school.
Instructional Materials
- Broom
- See-saw
- Hoe
- Cutlass
- Can opener
- Spoon
Lesson 1 — Meaning of Simple Machines
A simple machine is a device that makes work easy.
Examples of Simple Machines
- Broom
- Spoon
- See-saw
- Hoe
- Cutlass
Lesson 2 — Importance of Simple Machines
Simple machines make work easier. They are important for:
- Eating foods — e.g. spoon and fork
- Cutting — e.g. knife, cutlass, axe, scissors
- Sweeping — e.g. broom
- Grinding — e.g. blender, grinding stone, mortar and pestle
- Carrying — e.g. bucket, basket, wheelbarrow
- Fetching water — e.g. bucket
- Hanging clothes — e.g. hanger
- Fastening objects — e.g. rope, chain
- Hitting — e.g. hammer, stone
Lesson Evaluation
- Define machine.
- Name 5 examples of simple machines.
- Mention 5 importance of simple machines with examples.
Weekly Assessment
- Simple machine is a device that makes work _________. A. easy B. medium C. hard
- _________ is a device that makes work easy. A. Simple B. Machine C. Simple machine
- _________ is a simple machine used for sweeping. A. Fork B. Rake C. Broom
- _________ is a simple machine used for eating. A. Spoon B. Knife C. Broom
- _________ is a simple machine used for cutting grass. A. Knife B. Cutlass C. Axe
- _________ is used for hitting nail. A. Cup B. Hammer C. Spoon
- _________ is used for fetching water. A. Bucket B. Basket C. Cup
- _________ is used for hanging clothes. A. Rope B. Wood C. Hanger
- _________ are used for pounding yam. A. Mortar and pestle B. Blender and grinder C. Grinding stone and blender
- _________ is a modern pepper grinder. A. Grinding stone B. Mortar C. Blender
Next Lesson: The Safe Use of Simple Machines — Week 3