Meaning of Parasites
Subject :
AGRICULTURAL SCIENCE
Term :
THIRD TERM
Week:
WEEK 2
Class :
Primary 5
Topic :
Meaning of Parasites
Previous lesson:
The pupils have previous knowledge of
PESTS, PARASITES AND DISEASES OF FARM ANIMALS
that was taught as a topic in the previous lesson
Behavioural objectives :
At the end of the lesson, the pupils should be able to
- Say the meaning of Parasites
- Give examples of Parasites
- List types of Parasites
- Explain how parasites affect hosts
Instructional Materials:
- Wall charts
- Pictures
- Related Online Video
- Flash Cards
Methods of Teaching:
- Class Discussion
- Group Discussion
- Asking Questions
- Explanation
- Role Modelling
- Role Delegation
Reference Materials:
- Scheme of Work
- Online Information
- Textbooks
- Workbooks
- 9 Year Basic Education Curriculum
- Workbooks
Content :
Meaning of Parasites
Parasites : Parasites are living things that live, grow and feed on other living things. Parasites depend on other living things for survival. They pest, disturb and make live miserable for thier hosts. Some parasites feed on thier hosts on the hosts become dead.
Examples of Parasites are lice, ticks, nematodes, worms, tapeworm, roundworm, lever fluke, mite etc
Hosts : Hosts are organisms that allow parasites to live on them. They are the Organisms that suffer the relations of being with parasites. When hosts are infected with parasites, the host may become diseased, weak, ill or dead if proper care and medication is not given to the hosts. Examples of hosts of Parasites are human being, pig, cattle, dog, cats etc
Types of Parasites
Endo parasites : These are parasites that live and feast inside thier hosts. They live inside the bodies of their hosts. Examples of endo parasites are worms like tapeworms, hookworms, roundworms, liver fluke etc
Ecto parasites : These are parasites that live outside the body of thier hosts. Examples of such parasites are ticks, lice, mite, They suck the blood of the hosts thereby having effects like loss of energy, strength, blood or life.
Presentation
The topic is presented step by step
Step 1:
The class teacher revises the previous topics
Step 2.
He introduces the new topic
Step 3:
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
Evaluation
- What are Parasites
- Give four examples of Parasites
- List two types of Parasites
- Explain how parasites affect hosts
Dangerous insects in our homes
Pests and Diseases of Crop Plants
Conclusion
The class teacher wraps up or concludes the lesson by giving out short notes to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.
He or she does the necessary corrections when and where the needs arise.
