Home






SCHEME OF WORK
Biology
Form 4 2025
TERM I
School


To enable/disable signing area for H.O.D & Principal, click here to update signature status on your profile.




To enable/disable showing Teachers name and TSC Number, click here to update teacher details status on your profile.












Did you know that you can edit this scheme? Just click on the part you want to edit!!! (Shift+Enter creates a new line)


WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 3
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.
1 4-5
GENETICS
Discontinuous variation.
Continuous variation.
By the end of the lesson, the learner should be able to:
Define discontinuous variation.
Define continuous variation.
Give examples of characteristics that show continuous variation.
Observe some discontinuous variations in human beings such as tongue rolling, sex, blood groups, etc.
Discussion on the concept of discontinuous variation.


Class activity ; students measure and record their heights;
Plotting of frequency-height graph;
Analyzing the graph;
Discussion with probing questions.
text book
Metre rules/ tape measure,
Graph papers
KLB BK IV.
P 3.

KLB BK IV.
PP 3-4
2 1
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
2 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
2 3
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
2 4-5
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
3 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
3 2
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
3 3
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
3 4-5
GENETICS
DNA replication.
First law of heredity.
By the end of the lesson, the learner should be able to:
Describe DNA replication.
Explain the role of DNA in protein synthesis.
Describe Mendel?s experiments.
State Mendel?s first law.
Exposition;
Drawing mRNA strands.
Exposition with explanations.
text book
KLB BK IV. PP 9-10
KLB BK IV. PP 11-12
4 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
4 2
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
4 3
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
4 4-5
GENETICS
Ratios of phenotypes and genotypes.
Incomplete dominance.
By the end of the lesson, the learner should be able to:
Explain the concept of probability in inheritance of characteristics.
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.
Q/A to review phenotypes and genotypes.
Simple experiments on probability.
Discussion.

Exposition;
Discussion;
Drawing diagrams.
Beans of two different colours, beakers.
chart
KLB BK IV. PP 15-17
KLB BK IV. PP 19-20.
5 1
GENETICS
Inheritance of ABO blood groups.
By the end of the lesson, the learner should be able to:
Illustrate inheritance of blood groups with diagrams.
Exposition;
Discussion;
Drawing diagrams;
Supervised practice on inheritance of blood groups.
chart
KLB BK IV. PP 20-21
5 2
GENETICS
Inheritance of ABO blood groups.
By the end of the lesson, the learner should be able to:
Illustrate inheritance of blood groups with diagrams.
Exposition;
Discussion;
Drawing diagrams;
Supervised practice on inheritance of blood groups.
chart
KLB BK IV. PP 20-21
5 3
GENETICS
Inheritance of Rhesus factor.
By the end of the lesson, the learner should be able to:
Describe inheritance of Rhesus factor.
Exposition;
Discussion.
chart
KLB BK IV. PP 21-22
5 4-5
GENETICS
Determining unknown genotypes.
Sex determination in man.
By the end of the lesson, the learner should be able to:
Determine unknown genotypes using test crosses and selfing crosses.
Describe sex determination in man.
Exposition;
Probing questions;
Drawing illustrative diagrams;
Discussion.

Exposition;
Drawing illustrative diagrams;
Discussion.
text book
KLB BK IV. PP 22-23
KLB BK IV. PP 23-24
6 1
GENETICS
Sex-linked genes and traits.
By the end of the lesson, the learner should be able to:
Identify sex-linked traits in man.
Illustrate inheritance of sex-linked traits with diagrams.
Probing questions;
Drawing illustrative diagrams;
Discussion.
text book
KLB BK IV. PP 24-27
6 2
GENETICS
Non-disjunction.
By the end of the lesson, the learner should be able to:
Explain effects of non-disjunction as a chromosomal abnormality.
Exposition of new concepts;
Discussion.
text book
KLB BK IV. PP 30-33
6 3
GENETICS
Non-disjunction.
By the end of the lesson, the learner should be able to:
Explain effects of non-disjunction as a chromosomal abnormality.
Exposition of new concepts;
Discussion.
text book
KLB BK IV. PP 30-33
6 4-5
GENETICS
Gene mutation.
By the end of the lesson, the learner should be able to:
Differentiate between chromosomal and gene mutation.
Identify types of gene mutation.
Q/A to review types of chromosomal mutation;
Using sequence models to show chromosomal mutations.
Discussion.
Models to show Chromosomal mutations.
KLB BK IV. PP 33-35
7 1
GENETICS
Disorders due to gene mutations.
By the end of the lesson, the learner should be able to:
Illustrate genetic disorders with diagrams.
Discussion on albinism, sickle-cell anaemia, haemophilia, colour blindness.
Drawing illustrative diagrams.
chart
KLB BK IV. PP 35-38
7 2
GENETICS
Applications of genetics.
By the end of the lesson, the learner should be able to:
Identify areas of practical application of genetics.
Probing questions;
Open discussion;
Topic review.
text book,video
KLB BK IV. PP 39-45
7

Half term
8

Exam one
9 1
EVOLUTION
Meaning of evolution. Theories of origin of life.
By the end of the lesson, the learner should be able to:


Define evolution.
Explain the theories of life.


Brain storming;
Probing questions;
Q/A on creation theory;
Exposition of chemical theory.
text book
KLB BK IV. PP 49-51
9 2
EVOLUTION
Meaning of evolution. Theories of origin of life.
By the end of the lesson, the learner should be able to:


Define evolution.
Explain the theories of life.


Brain storming;
Probing questions;
Q/A on creation theory;
Exposition of chemical theory.
text book
KLB BK IV. PP 49-51
9 3
EVOLUTION
Evidence for organic evolution.
By the end of the lesson, the learner should be able to:
Cite evidence for organic evolution.
Brain storming;
Probing questions;
Exposition;
Discussion.
text book
KLB BK IV. PP 51-59
9 4-5
EVOLUTION
Comparative anatomy and homologous structures.
By the end of the lesson, the learner should be able to:
Define divergent evolution.
Give examples of homologous structures.
Examine forelimbs of vertebrates;
Discuss adaptations and use of the limbs.
Forelimbs of vertebrates.
KLB BK IV. PP 59-63
10 1
EVOLUTION
Comparative anatomy and homologous structures. (contd)
Convergent evolution and analogous structures.
By the end of the lesson, the learner should be able to:
Define divergent evolution.
Give examples of homologous structures.
Define convergent evolution.
Give examples of analogous structures.
Give examples of vestigial structures.
Examine forelimbs of vertebrates;
Discuss adaptations and use of the limbs.
Examine wings of insects; wings of birds / bat.
Discuss observations.
Forelimbs of vertebrates.
Wings of insects, wings of birds / bat.
KLB BK IV. PP 59-63
10 2
EVOLUTION
Convergent evolution and analogous structures.(contd)
By the end of the lesson, the learner should be able to:
Define convergent evolution.
Give examples of analogous structures.
Give examples of vestigial structures.
Examine wings of insects; wings of birds / bat.
Discuss observations.
Wings of insects, wings of birds / bat.
KLB BK IV. PP 63-64
10 3
EVOLUTION
Convergent evolution and analogous structures.(contd)
By the end of the lesson, the learner should be able to:
Define convergent evolution.
Give examples of analogous structures.
Give examples of vestigial structures.
Examine wings of insects; wings of birds / bat.
Discuss observations.
Wings of insects, wings of birds / bat.
KLB BK IV. PP 63-64
10 4-5
EVOLUTION
RECEPTION, RESPONSE & CO-ORDINATION
Larmack?s theory of evolution.
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 Larmack?s theory of evolution.
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.
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. P 67




KLB BK IV. PP 73-74
11 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
11 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
11 1-2
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
11 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
11 4
RECEPTION, RESPONSE & CO-ORDINATION
Role of auxins in tropisms.
By the end of the lesson, the learner should be able to:
Explain the role of auxins in tropisms.
Examine previous plant set ?ups on response to light, gravity; contact;
Probing questions and discussion.
text book
KLB BK IV. PP 80-83
11 4-5
RECEPTION, RESPONSE & CO-ORDINATION
Role of auxins in tropisms.
By the end of the lesson, the learner should be able to:
Explain the role of auxins in tropisms.
Examine previous plant set ?ups on response to light, gravity; contact;
Probing questions and discussion.
text book
KLB BK IV. PP 80-83
12

End term exam

Your Name Comes Here


Would You like to provide feedback on the scheme quality and the experience you had? Click on the feedback button below
Download

Feedback

School Name