Third Term Lesson Note for Week Eight
Class : Primary 2
Subject : Social Studies
Topic : Harmful Substances (meaning and examples)
Duration : 40 minutes
Period : Single Period
Reference Book :
- Basic Social Studies for Primary Schools, Book 2 by B. J. Obebe, étal.
- Lagos State Unified Schemes of Work for Primary Schools, (Primary 1 – 3)
- Online Resources
Instructional Material : Chart showing some examples of harmful substances.
Learning Objectives : By the end of the lesson learners will be able to :
i. Explain the meaning of harmful substances.
ii. Give examples of harmful substances
Content :
Harmful substances are substances that are unfit for us to take into our body. The substances may be food. Water, drugs or fruits.
When we eat dirty or spoilt food, we can get ill.
Examples of harmful substances.
The substances that are Harmful to our bodies include :
1. Expired foods or drugs
2. Rotten foods :
3. Unripe fruits : The unripe fruits are acidic and can affect our health.
4. Impure or dirty water.
5. Too much alcohol
6. Infested foods : Food that have been exposed to dirt and germs.
7. Poorly cooked food : food that is not done
8. Smoking of Cigarette and hemps
Reasons why people take harmful substances into their body
1. Poverty
2. Ignorance
3. People prefer to buy cheaper drugs
4. Lack of proper education
Presentation Steps :
Step 1 : Revises the previous lesson with the learners
Step 2 : Introduces the new topic by explaining the harmful substances
Step 3 : List several examples of harmful substances
Evaluation :
1. If we eat dirty food, we can get ___________. (a) well (b) ill (c) healthy
2. One of the following is an example of harmful substance. (a) pure water (clean water (c) impure water
3. Eating unripe fruits can cause __________. (a) stomach ache (b) malaria (c) headache
4. Which of the following must we avoid? (a) alcohol and cigarette (b) well- cooked food (c) clean water
5. Taking expired drugs can lead to _________ (a) good health (b) Bad health (c) good growth
Conclusion : At the end of the lesson learners were able to answer the questions
Assignment :
1. Food, water, fruits and drugs that are unfit for us to eat are called ______________.
2. We can get ____________ if we eat dirty food or drink dirty water.
3. Give Four examples of harmful substances.