TOPIC: LIGHT AND COLOURS
A: TEACHING AND LEARNING MATERIALS
- Torchlight.
- Prism where available.
- Rainbow chart.
- Colour wheel.
- Coloured papers.
- Paints.
- White cardboard.
- Pictures of natural and artificial sources of light.
B: REFERENCE MATERIALS
- Scheme of work.
- Recommended Basic Science textbook for Primary 6.
- Online educational resources.
C: PREVIOUS KNOWLEDGE
The pupils know that light enables us to see objects and that different objects around them have different colours.
D: PERFORMANCE OBJECTIVES
By the end of the lesson, pupils should be able to:
- Define light.
- Identify natural and artificial sources of light.
- Explain that white light contains different colours.
- Name the seven colours of the rainbow.
- Identify primary colours.
- Identify secondary colours.
- Explain simple colour mixing.
- State uses of colours.
E: CONTENT
Meaning of Light
Light is a form of energy that enables us to see objects.
Sources of Light
Sources of light may be natural or artificial.
Natural Sources
Examples include:
☀️ Sun
⭐ Stars
⚡ Lightning
Artificial Sources
Examples include:
💡 Electric bulb
🔦 Torchlight
🕯️ Candle
🔥 Lamp or fire
White Light and Colours
White light can be separated into different colours.
A prism can separate white light into a band of colours called a spectrum.
Colours of the Rainbow
The seven colours are:
Red
Orange
Yellow
Green
Blue
Indigo
Violet
A useful short form is:
ROYGBIV
🌈 Red – Orange – Yellow – Green – Blue – Indigo – Violet
Primary Colours
The traditional primary colours used in painting are:
Red.
Yellow.
Blue.
Secondary Colours
Secondary colours can be made by mixing two primary paint colours.
Examples:
🔴 Red + 🟡 Yellow = 🟠 Orange
🟡 Yellow + 🔵 Blue = 🟢 Green
🔵 Blue + 🔴 Red = 🟣 Purple/Violet
Uses of Colours
Colours are useful for:
Decoration.
Art and painting.
Traffic signs.
Identification.
Clothing designs.
Communication and warning signs.
F: LESSON PRESENTATION
F1: Teachers’ Activities
- Defines light.
- Displays natural and artificial light sources.
- Explains white light and the spectrum.
- Introduces the colours of the rainbow.
- Guides pupils to recite ROYGBIV.
- Demonstrates simple paint colour mixing.
- Discusses uses of colours.
F2: Pupils’ Activities
- Define light.
- Identify sources of light.
- Name the colours of the rainbow.
- Identify primary colours.
- Mix colours under supervision.
- Name resulting secondary colours.
- Mention uses of colours.
G: CONCLUSION
The teacher revises the sources of light, colours of the rainbow, primary colours and secondary colours. Pupils are encouraged to observe colours in their surroundings and identify how they are used.
H: EVALUATION GUIDE
Pupils should be able to answer the following questions:
- What is light?
- Mention two natural sources of light.
- Mention three artificial sources of light.
- Name the seven colours of the rainbow.
- What does ROYGBIV represent?
- Name the three traditional primary paint colours.
- What colour is formed when red and yellow paints are mixed?
- Mention three uses of colours.