First Term Lesson Note for Week Six
Class : Primary Six
Subject : Basic Science
Topic : Drugs I ( meaning and types of drugs)
Duration : 40 Minutes
Period : Single Period
TOPIC: SYNTHETIC AND NATURALLY-OCCURRING DRUGS
Behavioral Objectives : By the end of the lesson learners will be able to :
i. State the meaning of drugs.
ii. List the types of drugs
iii. Mention the classification of drugs.
Instructional Materials :
A chart showing different kinds of drugs.
Reference Material :
- Lagos State Unified schemes of Scheme work for Upper Primary School, (Primary 4 – 6).
- Stan Basic Science and Technology for Primary Schools, Book 6.
- Online information
BUILDING BACKGROUND/CONNECTION TO PRIOR KNOWLEDGE:
Learners are familiar with the topic in their previous classes.
CONTENT :
Meaning of Drugs
Good health is very important because without it, we shall not be able to do anything. A sick person cannot go to school or work or farm. Health is wealth.
Since human beings are generally exposed to things that may make them sick, such as : environmental pollution, malnutrition and germs.
It is therefore, necessary to take drugs or substances that will fight against the causes of the sickness in the body.
A drug is a substance that affects the action of the body.
Drugs can also be called medicine (i.e. to treat or prevent diseases) or as a stimulant (i.e. to make the body more active). Some of our food crops which are eaten as food are also drugs to our body.
It is therefore necessary to take them moderately. If these food drugs are taken in large amounts they may become harmful to our body.
Types of Drugs
There are mainly two types of drugs. They are :
- Naturally Occurring drugs
- Synthetic drugs
Naturally occurring Drugs : They are called natural products.
These are substances from nature, e.g. vegetables, kola nut, coffee, tea, tobacco, fruits (such as lemon, lime), garlic, salt, pure honey.
Synthetic Drugs : These are chemical substances produced by human beings to treat or prevent diseases.
A person who is trained to prepare and dispense drugs and medicine is called a Pharmacist.
Examples of synthetic drugs are : paracetamol, chloroquine/ aspirin, cough lin, analgesic, balm, etc.
Drugs comes in different forms which include :
i. Drugs that are in solid form are called tablets.
ii. Drugs in liquid form are called syrup.
iii. Drugs applied directly on the surface of the body are called ointment.
iv. Injections : Drugs in liquid forms taken into the body through needle and syringe.
two main types of drugs can still be classified into:
Normal drugs
Hard drugs
Normal drugs are the common drugs that doctors and nutritionists prescribed to treat or prevent illness. Examples are paracetamol, aspirin and chloroquine.
Hard drugs are drugs that are not really for medical purposes. They have stimulant effects on the body i.e. they-affect mood or behavior. Examples include cocaine/ heroine/marijuana and cannabis
Presentation Steps :
Step 1 : Revision of the previous lesson with the learners by asking questions orally.
Step 2 : The teacher begins the lesson displaying some samples of substances. He then ask the learners what are those things?
Step 3 : He then defines drugs from the learners point of view. He then list the types of drugs and explains
Step 4 : Identify the different forms of drugs, describes and give examples.
Assessment & Evaluation :
1. What is the meaning of drugs?
2. List the types of drugs
3. Mention four classes of drugs.
WRAP-UP (CONCLUSION)
Teacher goes over the topic once again to enhance better understanding.
ASSIGNMENT :
Answer these questions
1. What is a drug?
2. Explain the difference between naturally-occurring drugs and synthetic drugs.
3. Give four examples of naturally-occurring drugs in Nigeria.
4. Drugs can be bought directly from a chemist’s shop and used anyhow? True or false
5. Is food a drug? Give reasons for your answer.
6. Drugs made from chemical substances are called _________________