TOPIC: GENERAL REVISION
A: TEACHING AND LEARNING MATERIALS
- Hand fan.
- Pictures of wind damage.
- Water samples.
- Filter cloth.
- Sachet and bottled water.
- Soil samples.
- Pictures of plants and soil animals.
- Revision cards.
- Pupils’ notebooks and pencils.
B: REFERENCE MATERIALS
- Scheme of work.
- Recommended Basic Science textbook for Primary 3.
- Online educational resources.
C: PREVIOUS KNOWLEDGE
The pupils have learnt about wind, sources and uses of water, water contamination, water purification, packaged water and the importance of soil to plants, animals and human beings.
D: PERFORMANCE OBJECTIVES
By the end of the lesson, pupils should be able to:
- Recall the meaning and effects of wind.
- Mention sources and uses of water.
- State qualities of clean water.
- Explain contamination and purification of water.
- Explain packaged water and safe handling.
- State the importance of soil to plants, animals and humans.
- Answer general revision questions correctly.
E: CONTENT
Revision of Wind
Wind is moving air. Useful effects include:
- Drying clothes.
- Moving boats.
- Cooling the body.
Harmful effects include:
- Breaking trees.
- Damaging roofs.
- Wind erosion.
Revision of Water
Sources include:
- Rain.
- Rivers.
- Streams.
- Wells.
- Boreholes.
Uses include:
- Drinking.
- Cooking.
- Washing.
- Bathing.
- Farming.
Revision of Water Quality
Clean water should be:
- Colourless.
- Odourless.
- Free from visible dirt.
- Safe for use.
Contaminated water contains dirt, germs or harmful substances.
Revision of Water Purification
Methods include:
- Boiling.
- Filtration.
- Sedimentation.
- Approved treatment methods.
Revision of Packaged Water
Packaged water includes:
- Sachet water.
- Bottled water.
Safe packaged water should be properly sealed and clean.
Revision of Soil
Soil is important to plants because it provides:
- Support.
- Water.
- Air.
- Nutrients.
Soil is important to animals because some animals live in it. Soil is useful to humans for:
- Farming.
- Building.
- Pottery.
- Road construction.
F: LESSON PRESENTATION
F1: Teachers’ Activities
- Revises wind and its effects.
- Revises sources and uses of water.
- Revises qualities of clean water.
- Revises contamination and purification.
- Revises packaged water.
- Revises the importance of soil.
- Gives oral and written revision exercises.
F2: Pupils’ Activities
- Answer questions about wind.
- Mention water sources and uses.
- State qualities of clean water.
- Explain purification methods.
- Identify safe packaged water.
- Mention uses of soil.
- Complete revision exercises.
G: CONCLUSION
The teacher revises all the important topics taught during the second term and corrects pupils’ mistakes. The pupils are encouraged to study their notes carefully in preparation for the examination.
H: EVALUATION GUIDE
Pupils should be able to answer the following questions:
- What is wind?
- Mention two useful effects of wind.
- Mention two harmful effects of wind.
- Mention four sources of water.
- State three qualities of clean water.
- What is water contamination?
- Mention two methods of purifying water.
- Mention two forms of packaged water.
- State three ways soil helps plants.
- Mention two animals that live in soil.
- State three uses of soil by human beings.