The Safe Use of Simple Machines At Home and In School for Primary 1

Class: Primary One
Term: Second term
Subject: Basic Science and Technology
Curriculum Theme: basic Technology
Previous Lesson: Basket as a Simple Machine
Topic: Safe Use of Simple machines at Home and in School
Content/Learning Area: Identify dangers in the use of simple machines at home and in school, Define simple machines
Time Allocation: 40 minutes

Performance Objectives

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

• Cognitive Domain:

1.Identify simple machines and their uses.
2. List at least four examples of simple machines.
3. Explain the dangers associated with the misuse of simple machines.

• Affective Domain:

1. Show awareness of safety precautions when using simple machines.
2. Value the importance of safe practices when using simple machines.

• Psychomotor Domain:

1. Demonstrate the safe use of simple machines (e.g., opening a door, using a see-saw).

• Social Domain:

1. Cooperate with peers during activities involving simple machines.

Reference Materials

• 9 – Years Basic Education Curriculum
• Abuja Educational Resource Centre Scheme of Work
• NAPPS National unified Scheme of Work
• Online Information
• Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials:

• Pictures of simple machines
• Real-life examples of simple machines (e.g., see-saw, bottle opener)
• Whiteboard or chart paper
• Markers

Rationale for the Lesson

Understanding simple machines and their safe use is crucial for children’s safety and growth. This lesson provides a foundation for future learning in science and technology, and promotes safe practices in everyday life.

Prerequisite/previous Knowledge

The teacher will begin by asking pupils to share examples of machines they have seen at home or school. The teacher will then introduce the concept of simple machines, emphasizing their importance in making work easier.

lesson Content

Safe Use of Simple Machines at home and in School

Simple machines are basic mechanical devices that make work easier and faster. They help us do things more quickly and with less effort. Here are some examples:

Levers

A lever is a rigid bar that moves around a fixed point called a fulcrum. Examples are:

1. A see-saw
2. A crowbar
3. A bottle opener
4. A pair of scissors

Pulleys

A pulley is a wheel with a groove that changes the direction of a force. Examples are:

1. A flagpole
2. A crane
3. A window blind
4. Elevators

Wedges

A wedge is used to split or separate things. Examples are:

1. An axe
2. A knife
3. A doorstop
4. A chisel

Inclined Planes

An inclined plane is a flat surface at an angle. Examples are:

1. A ramp
2. A slide
3. A staircase
4. Sloping roads

Screws

A screw holds things together or moves things. Examples are:

1. A screw
2. A bolt
3. A drill bit
4. Jar lids

Wheels and Axles

A wheel and axle is used to move things. Examples are:

1. A bicycle
2. A car
3. A wagon
4. Doorknobs

Dangers in the Use of Simple machines:

it’s vital to be careful when using simple machines because they can be perilous if not used correctly. These include:

1. Getting caught or crushed: Body parts can get caught in moving parts.
2. Falling accidents: Machines might not be stable,causing falls.
3. Cuts: sharp parts can cause cuts.
4. Burns: Some machines get hot and can cause burns.
5. Electric shock: Electrical machines can cause electric shock.

teaching Methods

to deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Demonstration, Question and answer

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: Asks pupils to name machines they see at home or school.
Pupils’ Activity: Respond to the teacher’s questions.

Step 2: Clarification of Key Concepts

Time: 10 minutes
teaching Skill: Explaining
Teacher’s Activity: Explains what simple machines are and gives examples.
Pupils’ Activity: Listen attentively and ask questions.

Step 3: Demonstration/Guided Practice

Time: 10 minutes
Teaching Skill: Demonstrating
Teacher’s Activity: demonstrates the use of simple machines and identifies potential dangers.
Pupils’ Activity: Observe the demonstration and participate in discussions.

Step 4: Autonomous Practice

Time: 5 minutes
Teaching Skill: Monitoring
Teacher’s Activity: Guides pupils as they identify simple machines in the classroom.
Pupils’ Activity: Identify simple machines in the classroom.

Step 5: note-Taking

Time: 5 minutes
Teaching Skill: Note-taking
Teacher’s activity: Guides pupils in taking notes on key concepts.
Pupils’ Activity: take notes on key concepts.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: Asks evaluation questions.
Pupils’ Activity: Answer evaluation questions.

Objective-aligned checks:

1. Identify simple machines and their uses.
2. List at least four examples of simple machines.
3. Explain the dangers associated with the misuse of simple machines.

Step 7: Conclusion

Time: 5 minutes
Teaching Skill: Summarizing
Teacher’s Activity: Summarizes the key concepts and reiterates the importance of safe practices when using simple machines. Assigns homework.
Pupils’ Activity: Listen attentively and ask questions.

Lesson Keywords

• Simple Machines – Basic mechanical devices that make work easier.
• Lever – A rigid bar that moves around a fixed point.
• Pulley – A wheel with a groove that changes the direction of a force.
• Wedge – A tool used to split or separate objects.
• Inclined Plane – A flat surface at an angle used to reduce the force needed to move objects.
• Screw – A fastener that holds objects together or moves them.
• Wheel and Axle – A simple machine used to move things.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

1. What are simple machines?
2. name three simple machines and explain how they work.
3. List three dangers of using simple machines incorrectly.
4. How can we stay safe when using simple machines?

Assignment/Homework

1. Draw pictures of simple machines they see at home.
2. List five simple machines found at home and their uses.

Differentiation

• For slower learners: Provide one-on-one assistance and use simpler language.
• For advanced learners: Encourage them to research additional examples of simple machines and their uses.
• For visual/auditory/kinesthetic learners: Use visual aids,demonstrations,and hands-on activities to cater to diffrent learning styles.

Note for Teachers

Ensure to use real-life examples and demonstrations to make the lesson engaging and relatable for the pupils. Emphasize the importance of safety when using simple machines.