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SCHEME OF WORK
Biology
Form 4 2025
TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

opening and Revision of end term 1 Examinations

2 1
EVOLUTION
Larmack?s theory of evolution.
By the end of the lesson, the learner should be able to:
Explain Larmack?s theory of evolution.
Expositions and explanations.
text book
KLB BK IV. P 67
2 2
EVOLUTION
Larmack?s theory of evolution.
By the end of the lesson, the learner should be able to:
Explain Larmack?s theory of evolution.
Expositions and explanations.
text book
KLB BK IV. P 67
2 3
EVOLUTION
Darwin?s theory of natural selection.
By the end of the lesson, the learner should be able to:
Explain Darwin?s theory of natural selection.
Cite examples of natural selection in action.
Expositions and explanations;
Probing questions;
Topic review.
text book
KLB BK IV. PP 67-72
2 4-5
EVOLUTION
RECEPTION, RESPONSE & CO-ORDINATION
Darwin?s theory of natural selection.
Meaning of stimulus, response and irritability. Tactic responses.
By the end of the lesson, the learner should be able to:
Explain Darwin?s theory of natural selection.
Cite examples of natural selection in action.




Define of stimulus, response and irritability.
Explain the need for sensitivity and response.
Identify types of tactics responses.
Expositions and explanations;
Probing questions;
Topic review.





Brain storming;
Exposition;
Group experiments-chemotaxis in termites;
Discussion.
text book




Brad crumbs, termites, dry sand, moth balls.
KLB BK IV. PP 67-72




KLB BK IV. PP 73-74
3 1
RECEPTION, RESPONSE & CO-ORDINATION
Tropism and types of tropism.
By the end of the lesson, the learner should be able to:
Identify types of tropism.
State differences between tropisms and taxes.
Examine previous plant set ?ups on response to light, gravity;
Probing questions and discussion.
Seedlings, klinostat, corked beaker.
KLB BK IV. PP 74-78
3 2
RECEPTION, RESPONSE & CO-ORDINATION
Tropism and types of tropism.
By the end of the lesson, the learner should be able to:
Identify types of tropism.
State differences between tropisms and taxes.
Examine previous plant set ?ups on response to light, gravity;
Probing questions and discussion.
Seedlings, klinostat, corked beaker.
KLB BK IV. PP 74-78
3 3
RECEPTION, RESPONSE & CO-ORDINATION
Nastic responses.
By the end of the lesson, the learner should be able to:
Identify types of nastic responses
Q/A and discussion.
text book
KLB BK IV. PP 78-80
3 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Nastic responses.
Role of auxins in tropisms.
By the end of the lesson, the learner should be able to:
Identify types of nastic responses
Explain the role of auxins in tropisms.
Q/A and discussion.
Examine previous plant set ?ups on response to light, gravity; contact;
Probing questions and discussion.
text book
KLB BK IV. PP 78-80
KLB BK IV. PP 80-83
4 1
RECEPTION, RESPONSE & CO-ORDINATION
Response and Co-ordination in animals. The nervous system.
By the end of the lesson, the learner should be able to:




State components of the nervous system.
Describe the structure of nerve cells.




Descriptive and expository approaches.




Illustrative diagrams.
KLB BK IV. PP 84-85
4 2
RECEPTION, RESPONSE & CO-ORDINATION
Response and Co-ordination in animals. The nervous system.
By the end of the lesson, the learner should be able to:




State components of the nervous system.
Describe the structure of nerve cells.




Descriptive and expository approaches.




Illustrative diagrams.
KLB BK IV. PP 84-85
4 3
RECEPTION, RESPONSE & CO-ORDINATION
Types of neurons. The brain.
By the end of the lesson, the learner should be able to:
Identify types of neurons.

Describe structure of the human brain.
Descriptive and expository approaches.
Illustrative diagrams.
KLB BK IV. PP 85-88
4 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Types of neurons. The brain.
Reflex actions.
By the end of the lesson, the learner should be able to:
Identify types of neurons.

Describe structure of the human brain.
Differentiate between simple and conditioned reflex actions.
Descriptive and expository approaches.
Illustrate a simple reflex arc.
Probing questions on differences between simple and conditioned reflex actions.
Illustrative diagrams.
KLB BK IV. PP 85-88
KLB BK IV. PP 88-90
5 1
RECEPTION, RESPONSE & CO-ORDINATION
Transmission of a nerve impulse.
By the end of the lesson, the learner should be able to:
Describe the transmission of a nerve impulse.
Descriptive and expository approaches.
Illustrative diagrams.
KLB BK IV. PP 90-93
5 2
RECEPTION, RESPONSE & CO-ORDINATION
Transmission of a nerve impulse.
By the end of the lesson, the learner should be able to:
Describe the transmission of a nerve impulse.
Descriptive and expository approaches.
Illustrative diagrams.
KLB BK IV. PP 90-93
5 3
RECEPTION, RESPONSE & CO-ORDINATION
Transmission of a nerve impulse.
By the end of the lesson, the learner should be able to:
Describe the transmission of a nerve impulse.
Descriptive and expository approaches.
Illustrative diagrams.
KLB BK IV. PP 90-93
5 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Transmission of a nerve impulse.
By the end of the lesson, the learner should be able to:
Describe the transmission of a nerve impulse.
Descriptive and expository approaches.
Illustrative diagrams.
KLB BK IV. PP 90-93
6 1
RECEPTION, RESPONSE & CO-ORDINATION
The endocrine system.
By the end of the lesson, the learner should be able to:
Identify components of endocrine system.
Compare endocrine system. With nervous system.
Discussion; tabulate the differences.
Illustrative diagrams.
KLB BK IV. PP 93-6
6 2
RECEPTION, RESPONSE & CO-ORDINATION
The endocrine system.
By the end of the lesson, the learner should be able to:
Identify components of endocrine system.
Compare endocrine system. With nervous system.
Discussion; tabulate the differences.
Illustrative diagrams.
KLB BK IV. PP 93-6
6 3
RECEPTION, RESPONSE & CO-ORDINATION
The mammalian eye.
By the end of the lesson, the learner should be able to:
Identify major parts of the human eye.
Explain image formation and interpretation in the eye.
Brain storming;
Discussion with probing questions.
Chart- the human eye.
KLB BK IV. PP 93-100
6 4-5
RECEPTION, RESPONSE & CO-ORDINATION
The mammalian eye.
By the end of the lesson, the learner should be able to:
Identify major parts of the human eye.
Explain image formation and interpretation in the eye.
Brain storming;
Discussion with probing questions.
Chart- the human eye.
KLB BK IV. PP 93-100
7 1
RECEPTION, RESPONSE & CO-ORDINATION
Accommodation of the eye.
By the end of the lesson, the learner should be able to:
Explain the role of ciliary muscles in accommodation of the eye.
Discussion with probing questions,
Drawing illustrative diagrams.
Chart- focusing far and near points.
KLB BK IV. PP 100-1
7 2
RECEPTION, RESPONSE & CO-ORDINATION
Accommodation of the eye.
By the end of the lesson, the learner should be able to:
Explain the role of ciliary muscles in accommodation of the eye.
Discussion with probing questions,
Drawing illustrative diagrams.
Chart- focusing far and near points.
KLB BK IV. PP 100-1
7 3
RECEPTION, RESPONSE & CO-ORDINATION
Accommodation of the eye.
By the end of the lesson, the learner should be able to:
Explain the role of ciliary muscles in accommodation of the eye.
Discussion with probing questions,
Drawing illustrative diagrams.
Chart- focusing far and near points.
KLB BK IV. PP 100-1
7 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Accommodation of the eye.
By the end of the lesson, the learner should be able to:
Explain the role of ciliary muscles in accommodation of the eye.
Discussion with probing questions,
Drawing illustrative diagrams.
Chart- focusing far and near points.
KLB BK IV. PP 100-1
8 1
RECEPTION, RESPONSE & CO-ORDINATION
Defects of vision and their correction.
By the end of the lesson, the learner should be able to:
Identify defects of vision.
Explain correction of vision defects.
Detailed discussion with probing questions;
Drawing illustrative diagrams.
Illustrative diagrams.
KLB BK IV. PP 101-4
8 2
RECEPTION, RESPONSE & CO-ORDINATION
Defects of vision and their correction.
By the end of the lesson, the learner should be able to:
Identify defects of vision.
Explain correction of vision defects.
Detailed discussion with probing questions;
Drawing illustrative diagrams.
Illustrative diagrams.
KLB BK IV. PP 101-4
8 3
RECEPTION, RESPONSE & CO-ORDINATION
The human ear.
By the end of the lesson, the learner should be able to:
Identify major parts of the human ear.
Descriptive and expository approaches.
Drawn diagrams.
Illustrative diagrams.
KLB BK IV. PP 104-5
8 4-5
RECEPTION, RESPONSE & CO-ORDINATION
The human ear.
Hearing.
By the end of the lesson, the learner should be able to:
Identify major parts of the human ear.


Explain how the ear perceives sound.
Descriptive and expository approaches.
Drawn diagrams.
Illustrative diagrams.
KLB BK IV. PP 104-5
KLB BK IV. P 106
9

Mid term Examinations and break

10 1
RECEPTION, RESPONSE & CO-ORDINATION
Body balance and posture.
By the end of the lesson, the learner should be able to:
Explain how the ear maintains body balance and posture.
Descriptive and expository approaches.
KLB BK IV. PP 107-8
10 2
RECEPTION, RESPONSE & CO-ORDINATION
Body balance and posture.
By the end of the lesson, the learner should be able to:
Explain how the ear maintains body balance and posture.
Descriptive and expository approaches.
KLB BK IV. PP 107-8
10 3
RECEPTION, RESPONSE & CO-ORDINATION
Body balance and posture.
By the end of the lesson, the learner should be able to:
Explain how the ear maintains body balance and posture.
Descriptive and expository approaches.
KLB BK IV. PP 107-8
10 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Defects of the ear.
By the end of the lesson, the learner should be able to:
Identify some defects of the ear.
Descriptive and expository approaches.
text book
KLB BK IV.
P 108
13

End term Examinations

14

End term Examination Analysis and closing

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