BASIC SCIENCE AND TECHNOLOGY
THEME: CHANGES AROUND US
PREVIOUS LESSON – Change Around Us – Meaning of Erosion | types of Erosion | Causes of Erosion Primary 5 (Basic 5) – Basic Science and Technology
TOPIC: CHANGE AROUND US – EROSION
1. Introductory Activities
2. Meaning of Soil Erosion
3. Effects of Soil Erosion
4. Control of Soil Erosion
5. Lesson Evaluation and Weekly Assessment (Test)
By the end of the lesson, most of the pupils should have attained the following objectives –
1. list the effects or dangers of erosion;
2. identify, discuss and implement simple strategies for controlling erosion.
The pupils can identify and state the causes of soil erosion.
The teacher will teach the lesson with the aid of:
1. chart showing damages caused by erosion.
2. chart showing measure to repair and control future damage to the soil.
METHOD OF TEACHING
Choose a suitable and appropriate methods for the lessons.
Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.
Scheme of Work
9 – Years Basic Education Curriculum
All Relevant Material
Online Information – Change Around Us – Meaning (Types) and Causes of Erosion (Primary 5) ASEI PDSI METHOD
CONTENT OF THE LESSON
LESSON 1 – INTRODUCTION
Topsoil is very valuable, because it is nutrient-rich and feeds both seeds and plants. The flow of wind or water can remove topsoil leading to the loss of the nutrients and resources.
We experience erosion around us. Erosion can have a number of causes, but the effects are usually the same. The most visually noticeable effect is soil damage.
EFFECTS OF EROSION
1. It reduces the soil fertility.
2. It destroyed life and prosperity e.g. plants, vegetation, etc.
3. It damages and increases cost of living, production, transportation systems, infrastructures, etc.
4. Air and water pollution
5. It changes environment structures e.g. drainage.
6. It makes the crops not to grow well
LESSON 2 – CONTROL OF SOIL EROSION
2. Crops rotation
3. Better drainage
4. Proper management of soil resources
5. Environmental law and order.
To deliver the lesson, the teacher adopts the following steps:
1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;
2. Shows pupils charts, photographs of areas devastated by erosion.
Pupil’s Activities – Look at photographs of erosion sites and discuss the causes, effect and control measures.
3. Guides pupils to discuss the dangers (effects) of erosion, suggest control measures.
4. Arranges for pupils to visit and observe erosion sites in the locality;
Pupil’s Activities – Visit erosion sites in their locality.
5. Guides pupils to carry out a project on controlling erosion.
Pupil’s Activities – Participate in a project to control erosion at the site.
6. Summarize the lesson – effects and ways to control soil Erosion on the board.
Pupil’s Activities – Copy as the teacher writes.
To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.
Ask pupils to:
1. state 3 effects of erosion;
2. state 3 ways of controlling erosion.
WEEKLY ASSESSMENT (TEST)
1. Erosion is the washing away of _______ by wind, water and other agent of erosion such as human activities.
A. top soil
B. bottom soil
C. middle soil
D. central soil
2. Which of the statements is correct?
A. Erosion increase soil nutrients.
B. Erosion saves life and properties.
C. Erosion change environmental structure.
D. Erosion makes crops to grow well.
3. Which of the statements is not correct?
A. Erosion reduced soil fertility.
B. Erosion reduced the cost of living.
C. Erosion makes crops not to crop well.
D. Erosion destroyed lives and properties.
4. One of these is not the effect of soil erosion.
A. Planting of trees to control soil erosion
B. Increasing the cost of living
C. Decreasing environmental structures
D. Reducing soil nutrients
5. One of these is not the way to control soil erosion.
C. Crops rotation
D. Better drainage
6. Erosion increases the soil fertility.
7. Erosion destroyed lives and prosperity.
8. Erosion is one of the changes around us.
9. Erosion makes the crops to grow well.
10. Afforestation is cutting down of trees while deforestation is the planting of trees.