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SCHEME OF WORK
Biology
Form 4 2025
TERM I
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1
GROWTH & DEVELOPMENT.
Growth hormones.
By the end of the lesson, the learner should be able to:
To explain role of hormones in growth of plants.
Discuss the role of IAA, gibberellins, cytokinins, and abscisic acid e.t.c, in plant growth.
text book
KLB BK III. P. 147 CERTIFICATE PG 190
2 2
GROWTH & DEVELOPMENT.
Growth hormones.
By the end of the lesson, the learner should be able to:
To explain role of hormones in growth of plants.
Discuss the role of IAA, gibberellins, cytokinins, and abscisic acid e.t.c, in plant growth.
text book
KLB BK III. P. 147 CERTIFICATE PG 190
2 3-4
GROWTH & DEVELOPMENT.
Apical dominance.
By the end of the lesson, the learner should be able to:
To explain the role of auxins in apical dominance.
Probing questions leading to definition and explanation of apical dominance.
Shoot with lateral growth.
KLB BK III. PP. 147-148.
2 5
GROWTH & DEVELOPMENT.
Growth and development in insects.
By the end of the lesson, the learner should be able to:
To differentiate between complete and incomplete metamorphosis.
Q/A: Features of complete and incomplete metamorphosis of insects.
chart
KLB BK III. PP.148-14.9 CERTIFICATE PG 194
3 1
GROWTH & DEVELOPMENT.
Role of hormones in insect growth.
By the end of the lesson, the learner should be able to:
To identify hormones that promotes insect growth.
Exposition and explanations.
text book
KLB BK III. PP. 148-149. CERTIFICATE PG 199
3 2
GROWTH & DEVELOPMENT.
Role of hormones in insect growth.
By the end of the lesson, the learner should be able to:
To identify hormones that promotes insect growth.
Exposition and explanations.
text book
KLB BK III. PP. 148-149. CERTIFICATE PG 199
3 3-4
GENETICS
The concept of variation.
By the end of the lesson, the learner should be able to:


Define Genetics.
Define variation.
Exposition of new concepts.
Probing questions on some variations in human beings.
Observe some variations in human beings such as tongue rolling, finger prints, students? heights, etc.
Discussion on the concept of variation.


Ink pad, hand lenses, white paper.

KLB BK IV.
PP 1-2.
3 5
GENETICS
Discontinuous variation.
By the end of the lesson, the learner should be able to:
Define discontinuous variation.
Observe some discontinuous variations in human beings such as tongue rolling, sex, blood groups, etc.
Discussion on the concept of discontinuous variation.
text book
KLB BK IV.
P 3.
4 1
GENETICS
Continuous variation.
By the end of the lesson, the learner should be able to:
Define continuous variation.
Give examples of characteristics that show continuous variation.
Class activity ; students measure and record their heights;
Plotting of frequency-height graph;
Analyzing the graph;
Discussion with probing questions.
Metre rules/ tape measure,
Graph papers

KLB BK IV.
PP 3-4
4 2
GENETICS
Causes of variation.
By the end of the lesson, the learner should be able to:
Discuss causes of variation.
Exposition of new concepts.
Discussion with probing questions.
text book
KLB BK IV.
P 4
4 3-4
GENETICS
Causes of variation.
By the end of the lesson, the learner should be able to:
Discuss causes of variation.
Exposition of new concepts.
Discussion with probing questions.
text book
KLB BK IV.
P 4
4 5
GENETICS
Causes of variation.
By the end of the lesson, the learner should be able to:
Discuss causes of variation.
Exposition of new concepts.
Discussion with probing questions.
text book
KLB BK IV.
P 4
5 1
GENETICS
The chromosome.
By the end of the lesson, the learner should be able to:
Describe the structure of chromosomes.
Exposition of new concepts.
Probing questions.
Discussion.
text book
KLB BK IV. PP 4-5.
5 2
GENETICS
The chromosome.
By the end of the lesson, the learner should be able to:
Describe the structure of chromosomes.
Exposition of new concepts.
Probing questions.
Discussion.
text book
KLB BK IV. PP 4-5.
5 3-4
GENETICS
The chromosome.
Chromosomal behaviour during mitosis.
By the end of the lesson, the learner should be able to:
Describe the structure of chromosomes.
Describe chromosomal behaviour during mitosis.
Exposition of new concepts.
Probing questions.
Discussion.

Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.
text book
Scissors,
Manilla papers, thread, cellotape.
KLB BK IV. PP 4-5.
KLB BK IV. PP 5-6
5 5
GENETICS
Chromosomal behaviour during mitosis.
By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during mitosis.
Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.
Scissors,
Manilla papers, thread, cellotape.
KLB BK IV. PP 5-6
6 1
GENETICS
Chromosomal behaviour during meiosis.
By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during meiosis.
Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.
Scissors,
Manilla papers, threads, cellotape.
KLB BK IV. PP 6-7
6 2
GENETICS
Chromosomal behaviour during meiosis.
By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during meiosis.
Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.
Scissors,
Manilla papers, threads, cellotape.
KLB BK IV. PP 6-7
6 3-4
GENETICS
Chromosomal behaviour during meiosis.
By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during meiosis.
Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.
Scissors,
Manilla papers, threads, cellotape.
KLB BK IV. PP 6-7
6 5
GENETICS
Genes and DNA.
By the end of the lesson, the learner should be able to:
Describe the structure of genes and DNA.
Identify the role of DNA.
Expository approach.
Chart- the double helix DNA.
KLB BK IV. PP 7-8
7 1
GENETICS
DNA replication.
By the end of the lesson, the learner should be able to:
Describe DNA replication.
Explain the role of DNA in protein synthesis.
Exposition;
Drawing mRNA strands.
text book
KLB BK IV. PP 9-10
7 2
GENETICS
DNA replication.
By the end of the lesson, the learner should be able to:
Describe DNA replication.
Explain the role of DNA in protein synthesis.
Exposition;
Drawing mRNA strands.
text book
KLB BK IV. PP 9-10
7 3-4
GENETICS
DNA replication.
By the end of the lesson, the learner should be able to:
Describe DNA replication.
Explain the role of DNA in protein synthesis.
Exposition;
Drawing mRNA strands.
text book
KLB BK IV. PP 9-10
7 5
GENETICS
First law of heredity.
By the end of the lesson, the learner should be able to:
Describe Mendel?s experiments.
State Mendel?s first law.
Exposition with explanations.
KLB BK IV. PP 11-12
8

MID TERM BREAK
9 1
GENETICS
Monohybrid inheritance.
By the end of the lesson, the learner should be able to:
Define monohybrid inheritance.
Differentiate between genotype and phenotype.
Draw diagrams to show genetic crosses.
Q/A to review Mendel?s first law.
Drawing diagrams to show genetic crosses.
Discussion with probing questions.
text book
KLB BK IV. PP 12-14
9 2
GENETICS
Monohybrid inheritance.
By the end of the lesson, the learner should be able to:
Define monohybrid inheritance.
Differentiate between genotype and phenotype.
Draw diagrams to show genetic crosses.
Q/A to review Mendel?s first law.
Drawing diagrams to show genetic crosses.
Discussion with probing questions.
text book
KLB BK IV. PP 12-14
9 3-4
GENETICS
Monohybrid inheritance.
By the end of the lesson, the learner should be able to:
Define monohybrid inheritance.
Differentiate between genotype and phenotype.
Draw diagrams to show genetic crosses.
Q/A to review Mendel?s first law.
Drawing diagrams to show genetic crosses.
Discussion with probing questions.
text book
KLB BK IV. PP 12-14
9 5
GENETICS
Genetic crosses using a punnet square.
By the end of the lesson, the learner should be able to:
Show fusion of gametes using a punnet square.
Completing a punnet square;
Brief discussion.
text book
KLB BK IV. PP 14-15
10 1
GENETICS
Ratios of phenotypes and genotypes.
By the end of the lesson, the learner should be able to:
Explain the concept of probability in inheritance of characteristics.
Q/A to review phenotypes and genotypes.
Simple experiments on probability.
Discussion.
Beans of two different colours, beakers.
KLB BK IV. PP 15-17
10 2
GENETICS
Incomplete dominance.
By the end of the lesson, the learner should be able to:
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.
Exposition;
Discussion;
Drawing diagrams.
chart
KLB BK IV. PP 19-20.
10 3-4
GENETICS
Incomplete dominance.
By the end of the lesson, the learner should be able to:
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.
Exposition;
Discussion;
Drawing diagrams.
chart
KLB BK IV. PP 19-20.
10 5
GENETICS
Incomplete dominance.
By the end of the lesson, the learner should be able to:
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.
Exposition;
Discussion;
Drawing diagrams.
chart
KLB BK IV. PP 19-20.

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