Uses of Simple Machines, Where They Are Found and the Work They Do for Primary 1

Class: Primary One
Term: Third Term
Week: 9
Age: 6 years
Duration: 45 minutes
Subject: Basic Science
Curriculum Theme: Science, Technology and Development
Focal competence: Using simple machines to perform simple everyday tasks
Key competencies/values: Communication; Creativity and Innovation
Skills:

• Explaining the uses of simple machines

Previous Lesson: Identifying time and familiar devices used for telling time
Topic: Simple Machines: Uses
Subject Matter: Uses of familiar simple machines

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain

• Explain the uses of familiar simple machines.

Affective Domain

• Appreciate how simple machines make work easier.

Psychomotor Domain

• Identify simple machines in their environment.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Basic Science for Primary Schools 1
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Actual safe simple machines (e.g., spoon, bottle opener, toy car, ramp, seesaw, scissors)
• Machine-and-use picture cards showing different simple machines and their functions
• Charts displaying various simple machines and their uses

Rationale for the Lesson

This lesson is important because it connects the concept of simple machines to pupils’ everyday experiences, helping them understand how these tools simplify tasks. By learning the uses of simple machines, pupils develop an appreciation for technology and problem-solving in their environment. This knowledge also lays a foundation for future understanding of more complex machines.

Prerequisite/Previous Knowledge

Pupils should have a basic understanding of what simple machines are and be able to identify some common examples from the previous lesson.

Lesson Content/Board Summary

Simple Machines: Uses

Uses of Familiar Simple Machines

Simple machines are tools that help us do work more easily. They change the direction or amount of force needed.

Here are some simple machines and what they help us do:

1. Lever: A lever helps us lift heavy things, open bottles, or cut things.
   • Examples: Seesaws, bottle openers, scissors, wheelbarrows.
   • Where found: Playgrounds, kitchens, workshops, gardens.
2. Pulley: A pulley helps us lift things up or down easily, especially heavy objects.
   • Examples: Flagpoles, window blinds, well buckets.
   • Where found: Schools (flagpoles), homes (blinds), construction sites.
3. Wheel and Axle: A wheel and axle helps us move things over distances easily.
   • Examples: Car wheels, bicycle wheels, doorknobs, toy cars.
   • Where found: Vehicles, doors, toys.
4. Inclined Plane: An inclined plane helps us move things up or down without lifting them directly. It makes it easier to go up or down.
   • Examples: Ramps, slides, sloped roads.
   • Where found: Hospitals (ramps), playgrounds (slides), hills.

Matching Simple Machines with Their Work

Each simple machine does a special kind of work:

1. A seesaw (lever) helps children go up and down.
2. A bottle opener (lever) helps us open bottles.
3. A flagpole (pulley) helps us raise and lower flags.
4. A bicycle wheel (wheel and axle) helps the bicycle move.
5. A ramp (inclined plane) helps us push a wheelchair up to a higher place.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Group Work

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Review/Engage

Teacher’s Activity: The teacher greets the pupils and reminds them about the previous lesson on simple machines, asking them to name some simple machines they know.

Pupils’ Activity: Pupils respond to greetings and name simple machines like scissors, seesaw, and ramp.

Learning Point: Review of simple machines

Step 2: Introduction to Lever Uses

Time: 8 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher shows a seesaw or a picture of one and a bottle opener. The teacher demonstrates how they are used and explains that these are levers and how they make work easier (e.g., lifting, opening).

Pupils’ Activity: Pupils observe the demonstrations and listen to the explanations. Some may share their experiences with seesaws or bottle openers.

Learning Point: Lever uses and location

Step 3: Introduction to Pulley Uses

Time: 7 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher shows a picture of a flagpole with a pulley. The teacher explains how a pulley helps to raise and lower the flag and other heavy objects, making it easier to pull things up.

Pupils’ Activity: Pupils observe the picture and discuss how a pulley helps to lift things. They may mimic pulling a rope.

Learning Point: Pulley uses and location

Step 4: Introduction to Wheel and Axle Uses

Time: 7 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher shows a toy car or a picture of car wheels and a doorknob. The teacher explains how the wheel and axle help things move or turn easily, making it simple to travel or open doors.

Pupils’ Activity: Pupils observe the examples and explain how wheels help things move. They may pretend to turn a doorknob.

Learning Point: Wheel and axle uses

Step 5: Introduction to Inclined Plane Uses

Time: 6 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher shows a ramp or a picture of a slide. The teacher explains that these are inclined planes and how they help move things up or down without lifting directly, making it easier to go from one level to another.

Pupils’ Activity: Pupils observe the examples and discuss how ramps and slides are used. They may share experiences of using slides.

Learning Point: Inclined plane uses

Step 6: Matching Machines to Work

Time: 5 minutes

Teaching Skill: Guided Practice

Teacher’s Activity: The teacher uses machine-and-use picture cards. The teacher holds up a machine card and asks pupils to identify its use. Then, the teacher holds up a use card and asks pupils to match it to the correct machine.

Pupils’ Activity: Pupils identify uses of machines and match machine cards to their corresponding use cards, participating actively.

Learning Point: Matching machines to work

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What does a seesaw help us do?
2. Where can we find a pulley?
3. Name one thing a wheel and axle helps us do.
4. What is the use of a ramp?

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Uses of simple machines

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils to copy the essential Board Summary notes on the uses of simple machines into their notebooks.

Pupils’ Activity: Pupils copy the notes carefully into their notebooks.

Learning Point: Simple machines notes

Step 9: Conclusion

Time: 3 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher reminds pupils that simple machines are all around us and help us do many tasks easily every day. The teacher encourages them to look for simple machines at home and in school.

Pupils’ Activity: Pupils listen and acknowledge the importance of simple machines.

Learning Point: Importance of simple machines

Continuous Assessment/Further Study

Type: Homework

Instruction: Look around your home and school. Draw two simple machines you see and write down what each one helps to do.

1. Draw a simple machine you saw at home and write its use.
2. Draw a simple machine you saw at school and write its use.

Lesson Keywords

• Simple machines – Tools that make work easier.
• Lever – A simple machine used for lifting or prying.
• Pulley – A simple machine used for lifting things with a rope.
• Wheel and Axle – A simple machine used for moving or turning.
• Inclined Plane – A simple machine that is a sloped surface for moving things up or down.
• Uses – What something is for or what it does.

Differentiation

For pupils who are struggling, provide more one-on-one guidance and use physical simple machines for hands-on demonstration. For faster learners, encourage them to identify more simple machines beyond those discussed and describe their uses, or draw a picture showing multiple simple machines working together.

Suggested Lesson Videos

For further understanding, teachers can search on YouTube for: uses of simple machines for primary 1

Teacher Guide for Using This Lesson Plan

Before the lesson, gather actual simple machines like a spoon, bottle opener, toy car, or a small ramp, or prepare clear picture cards of these items. Begin by briefly reviewing what simple machines are. During the lesson, demonstrate the use of each simple machine clearly, allowing pupils to observe and even try safe examples where possible. Encourage pupils to state the uses in their own words and identify where these machines are found. Guide them in matching machines to their functions. Ensure pupils copy the Board Summary notes on the uses of simple machines into their notebooks during the designated note-taking time. Check for understanding by asking direct questions related to the uses of each machine. Provide support for weaker learners by simplifying explanations and offering more visual aids, while challenging faster learners to think of additional examples or applications.