Lesson Notes By Weeks and Term - Primary 3

WEEK 7&8

SUBJECT: BASIC SCIENCE

TERM: 3RD TERM

CLASS: PRIMARY 3

Topic: Energy

Subtitle: Forms of energy

Learning Objectives: At the end of this this lesson, pupils should be able to:

1. Explain the sources and uses of light energy.
2. show that some objects reflect light.
3. sound energy.
4. some musical instrument.

Resources and materials:

Scheme of work

Online information

Instructional material:

1. Plain mirror

2. Lenses convex and concave

3. Empty tins with 4 shinny surfaces

4. Pencils

Building Background/connection to prior knowledge: pupils are familiar with the topic in their previous classes.

CONTENT 

LIGHT ENERGY

Light energy is a form of electromagnetic radiation. Light consists of photons, which are produced when an object's atoms heat up. Light travels in waves and is the only form of energy visible to the human eye.

SOURCES OF ENERGY

Sun

Electric bulb

Explosion

Flame

Led(light emitting diode)

Fire

Moon

Tube light

Uses of light energy

It helps us to see things.

It helps plants to make food and grow.

It is used in power satellites and space stations.

It is used in many electronic appliances.

The energy of light from the sun can be harvested to solar panels and can be used for domestic use since it is eco-friendly and cost effective too.

Materials that can reflect light

Smooth and shinning surface like glass,water, or polished metals.

SOUND ENERGY

Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. Sound energy is a form of mechanical energy.

Today’s Use of Sound Technology

Cellular Telephone

Motion Picture

Telephone

C.D.’s Televisions

Phonographs

Electronics

Hearing Aids

Video Tape Recorders

Video Cameras

Speakers

Stethoscopes

Microphone

Strategies& Activities:

Step :Teacher revises the previous topic.

Step 2:Teacher introduces the new topic.

Step3:Teacher explains the new topic.

Step4: Teacher welcomes pupils questions.

Step5: Teacher evaluates the pupils.

Assessment & Evaluation:

1. explains the sources and uses of light energy.

2. show that some objects reflect light.

3. sound energy.

4. some musical instrument.

WRAP UP(CONCLUSION)

Teacher goes over the topic once again for better understanding.

Assignment:

1. explains two sources of light energy. 

2. list three materials that can reflect lights.

3. explaws the meaning of sound energy.