Class: Primary 6
Term: Third Term
Subject: Basic Science & Technology
curriculum Theme: Basic Science
Previous Lesson: Air, Why things move in the air
Topic: Air
Content/Learning Area: Some applications of air pressure: Navigation, Generation of Electricity
Time Allocation: 40 Minutes

Performance Objectives

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

Cognitive Domain: Explain how air pressure is applied in navigation and electricity generation.
Affective Domain: Show interest in the applications of air pressure in everyday life.
Psychomotor Domain: Demonstrate the effect of air pressure using simple experiments.
Social Domain: Collaborate with peers to discuss and understand the applications of air pressure.

Reference Materials

9 Years Basic Education Curriculum
Abuja educational Resource Center Scheme of work
NAPPS National Unified Scheme of Work
Spectrum Basic Science and Technology Book 6
Evans Basic Science and Technology Book 6

Instructional Materials

To deliver this lesson, the teacher will employ the help of the following materials: a chart showing windmills, a toy boat, balloons, and light objects.

Rationale for the Lesson

Understanding air pressure applications helps pupils appreciate the role of science in navigation and electricity generation, fostering curiosity and practical skills.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of air and its properties.

Lesson Content

Air Pressure Applications

Navigation

Air pressure plays a crucial role in navigation, particularly in how boats and ships function. The principles of buoyancy and displacement, which are directly related to air and water pressure, allow vessels to float and move through water.

Generation of electricity

Windmills are used to generate electricity. Wind, which is moving air, exerts pressure on the blades of a windmill, causing them to rotate. This rotation is then converted into electrical energy.

Applications of Air Pressure

Air pressure acts in all directions. Drinking through a straw works because lowering pressure in the mouth allows outside air pressure to push liquid upward. Syringes, bicycle pumps, suction cups, spray bottles and weather instruments also use pressure differences.

Air moves from higher toward lower pressure. Pupils should not use pressurised cans, pumps or syringes on the body or point them at another person.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Demonstration, Experimentation, Explanation.

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: The teacher asks pupils about objects that move through the air and reviews the previous lesson on the properties of air.
Pupils’ Activity: Pupils respond to the teacher’s questions and participate in the review.

Step 2: Windmill Power Discussion

time: 10 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher guides a discussion on how windmills use air pressure to generate electricity, using a chart as a visual aid.
Pupils’ Activity: Pupils observe the chart and participate in the discussion, asking questions for clarification.

step 3: Boat Functionality Explanation

Time: 10 minutes
Teaching Skill: Demonstration
Teacher’s Activity: the teacher explains how boats use air and water pressure to navigate, using a toy boat to illustrate the principles.
Pupils’ Activity: Pupils observe the demonstration and ask questions about how boats float and move.

Step 4: Balloon Experiment

Time: 10 minutes
Teaching Skill: Experimentation
Teacher’s Activity: The teacher guides pupils in a simple experiment using a balloon to lift light objects, demonstrating the effect of air pressure.pupils’ Activity: Pupils participate in the experiment, observing and recording thier findings.

Step 5: Note-Taking

Time: 3 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher writes a summary of the lesson on the board.
Pupils’ Activity: Pupils copy the summary into their notebooks.

Step 6: Evaluation/Review

Time: 2 minutes
Teaching Skill: Assessment
Teacher’s Activity: The teacher asks questions to evaluate pupils’ understanding of the lesson.
Pupils’ Activity: Pupils answer the teacher’s questions.

Objective-aligned checks:

Explain how air pressure is applied in navigation and electricity generation.
Demonstrate the effect of air pressure using simple experiments.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Closure
Teacher’s Activity: The teacher summarizes the main points of the lesson and assigns homework.
Pupils’ Activity: pupils listen to the summary and note the homework assignment.

Lesson Keywords

Air Pressure – The force exerted by air on a surface.
Navigation – The process of planning and directing the movement of a vehicle or vessel.
Windmill – A structure with vanes that are turned by the wind to generate power.
Electricity Generation – the process of producing electrical energy.
Buoyancy – The ability of an object to float in a liquid or gas.

Lesson Evaluation

To evaluate the learning,the teacher asks pupils to:

Explain how air pressure helps boats to float.
Describe how windmills generate electricity.
Give examples of other applications of air pressure.

Assignment/Homework

Research and write about another submission of air pressure.
Draw a diagram of a windmill and label its parts.

Differentiation

For slower learners: Provide simplified explanations and hands-on activities with more guidance.
For advanced learners: Encourage self-reliant research on advanced applications of air pressure.
For visual/auditory/kinesthetic learners: Use visual aids, discussions, and hands-on experiments to cater to different learning styles.

Note for Teachers

Ensure pupils actively participate in discussions and experiments to enhance their understanding of air pressure applications.