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SCHEME OF WORK
Biology
Form 3 2025
TERM III
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

Reporting and checking of holiday assignment

2 1
REPRODUCTION IN PLANTS AND ANIMALS
Fertilisation process.
By the end of the lesson, the learner should be able to:
To explain the fertilisation process.
Discussion
Drawing diagrams.

chart
KLB BK III. PP. 113-114 CERTIFICATE PG 152
2 2
REPRODUCTION IN PLANTS AND ANIMALS
Implantation.
By the end of the lesson, the learner should be able to:
To define implantation.
To define ectopic pregnancy.
Drawing illustrative diagrams.
Discussion.
text book
KLB BK III. P. 114 CERTIFICATE PG 153
2 3
REPRODUCTION IN PLANTS AND ANIMALS
The placenta.
By the end of the lesson, the learner should be able to:
To describe the formation of the placenta and the structure of the placenta.
Exposition and discussion.
Chart- The placenta.
KLB BK III. P. 115 CERTIFICATE PG 159
2 4-5
REPRODUCTION IN PLANTS AND ANIMALS
Role of the placenta. Placental exchanges.
Pregnancy and hormones.
By the end of the lesson, the learner should be able to:
To state and explain the role of the placenta.
To identify substances allowed / not allowed to pass through the placenta
To identify functions of human oestrogen and progestrone during pregnancy.
Exposition and discussion. Drawing diagrams showing placental exchanges.
Detailed discussion.
Tabulate functional differences.
text book
KLB BK III. P. 116 CERTIFICATE PG 159
CERTIFICATE PG 160
3 1
REPRODUCTION IN PLANTS AND ANIMALS
Abortion, miscarriage, birth.
By the end of the lesson, the learner should be able to:
To describe processes of abortion, miscarriage and birth.
Q/A: To elicit students responses on related issues.
text book
KLB BK III. PP.
117-119 
3 2
REPRODUCTION IN PLANTS AND ANIMALS
Lactation and parental care.
By the end of the lesson, the learner should be able to:
To explain the role of oxytocin in milk let down.
To draw and label mammary glands.
Discussion

Drawing and labelling mammary glands.
Wall- charts mammary glands.
KLB BK III. P. 120 
3 3
REPRODUCTION IN PLANTS AND ANIMALS
Secondary sexual characteristics.
By the end of the lesson, the learner should be able to:
To state secondary sexual characteristics in males and females.
Detailed discussion.
text book
3 4-5
REPRODUCTION IN PLANTS AND ANIMALS
The menstrual cycle.
28-day menstrual cycle.
By the end of the lesson, the learner should be able to:
To explain the role of hormones in the menstrual cycle.
To represent hormonal levels on a 28-day chart.
Detailed discussion.
Open discussion.
Interpreting illustrative charts.
Chart- Phases of human menstrual cycle.
KLB BK III. P. 121 CERTIFICATE PG 151
KLB BK III. PP.
122-123 CERTIFICATE PG 152
4 1
REPRODUCTION IN PLANTS AND ANIMALS
Menopause, infertility and emerging issues.
By the end of the lesson, the learner should be able to:
To describe hormonal changes at menopause.
To discuss emerging issues related to infertility and menopause.
Open discussion.
text book
KLB BK III. P. 123 
4 2
REPRODUCTION IN PLANTS AND ANIMALS
Menopause, infertility and emerging issues.
By the end of the lesson, the learner should be able to:
To describe hormonal changes at menopause.
To discuss emerging issues related to infertility and menopause.
Open discussion.
text book
KLB BK III. P. 123 
4 3
REPRODUCTION IN PLANTS AND ANIMALS
Sexually Transmitted Infections & HIV/AIDS.
By the end of the lesson, the learner should be able to:
To identify the symptoms of STIs.
To explain the mode of transmission of STIs / AIDS and discuss methods of control.
To differentiate between HIV and AIDS.
Detailed discussion.
Q/A: Distinction and relationship between HIV and AIDS.

Chart- STIs causal agents, symptoms, prevention and control measures.
PP.
123-125 CERTIFICATE PG 169
4 4-5
REPRODUCTION IN PLANTS AND ANIMALS
GROWTH & DEVELOPMENT.
Sexually Transmitted Infections & HIV/AIDS.
The concepts of growth and development.
By the end of the lesson, the learner should be able to:
To identify the symptoms of STIs.
To explain the mode of transmission of STIs / AIDS and discuss methods of control.
To differentiate between HIV and AIDS.
To distinguish growth from development.
Detailed discussion.
Q/A: Distinction and relationship between HIV and AIDS.


Q/A: Aspects that occur during growth.
Detailed discussion of growth and development.
Chart- STIs causal agents, symptoms, prevention and control measures.
text book
PP.
123-125 CERTIFICATE PG 169
KLB BK III. P. 134 CERTIFICATE PG 178
5 1
GROWTH & DEVELOPMENT.
Measurement of growth.
By the end of the lesson, the learner should be able to:
To identify aspects that indicate growth of an organism.
Sketch a growth curve.
Discuss growth aspects-height, weight and volume.
text book
KLB BK III. P. 134 CERTIFICATE PG 178
5 2
GROWTH & DEVELOPMENT.
Growth phases.
By the end of the lesson, the learner should be able to:
To describe lag and decelerating phases of growth.
Students will have collected data, e.g. height of shoots of different ages.
Teacher assists students to draw growth curves.
Discussion- phases of growth.
Shoots of known ages.
KLB BK III. P. 135 CERTIFICATE PG 179
5 3
GROWTH & DEVELOPMENT.
Growth phases.
By the end of the lesson, the learner should be able to:
To describe lag and decelerating phases of growth.
Students will have collected data, e.g. height of shoots of different ages.
Teacher assists students to draw growth curves.
Discussion- phases of growth.
Shoots of known ages.
KLB BK III. P. 135 CERTIFICATE PG 179
5 4-5
GROWTH & DEVELOPMENT.
Growth phases.
Intermittent growth curve.
By the end of the lesson, the learner should be able to:
To describe lag and decelerating phases of growth.
Explain growth curve showing intermittent growth.
Students will have collected data, e.g. height of shoots of different ages.
Teacher assists students to draw growth curves.
Discussion- phases of growth.

Q/A: life cycles of insects.
Exposition and detailed discussion.
Shoots of known ages.
chart
KLB BK III. P. 135 CERTIFICATE PG 179
6 1
GROWTH & DEVELOPMENT.
Structure of the seed.
By the end of the lesson, the learner should be able to:
To draw and label a typical seed.
To state the functions of the parts of a seed.
Students examine external structure of bean seeds and maize seeds.
Teacher assists them to identify the parts of the seeds.
Drawing and labeling the seeds.
Specimens of maize and bean seeds.
KLB BK III. P. 136 CERTIFICATE PG 182
6 2
GROWTH & DEVELOPMENT.
Longitudinal sections of monocots and dicots.
By the end of the lesson, the learner should be able to:
To identify structural differences between monocots and dicots.
Obtain longitudinal section of the seeds.
Identify structural differences of the specimens.
Carry out iodine tests.
Explain the observations.
Hand lens
Maize and bean seeds.
Iodine
Scalpels.
KLB BK III. P. 136  CERTIFICATE PG 182
6 3
GROWTH & DEVELOPMENT.
Dormancy in seeds.
By the end of the lesson, the learner should be able to:
To define seed dormancy.
To explain factors that cause dormancy and ways of breaking dormancy.
Detailed discussion.
video
KLB BK III. P. 137 CERTIFICATE PG 188
6 4-5
GROWTH & DEVELOPMENT.
Seed germination.
By the end of the lesson, the learner should be able to:
To describe the process of seed germination.
To investigate conditions necessary for germination.
To explain conditions necessary for germination.
Observe previously prepared specimens.
Discuss the observations.
Seeds
Cotton wool
Flat bottomed flasks
Corks
T-tubes
Thermometers
pyrogallic acid
NaOH solution.
KLB BK III.
P 140. CERTIFICATE PG 184
7 1
GROWTH & DEVELOPMENT.
Epigeal germination.
By the end of the lesson, the learner should be able to:
To differentiate between epigeal and hypogeal germination.
To describe epigeal germination.
Observe previously prepared specimens of germinating bean seed/ castor seed.
Drawing comparative diagrams.
Specimens of germinating bean/castor seed at different phases of germination.
KLB BK III. P. 141 CERTIFICATE PG 184
7 2
GROWTH & DEVELOPMENT.
Hypogeal germination.
By the end of the lesson, the learner should be able to:
To describe hypogeal germination.
Observe previously prepared specimens of germinating bean seed/ castor seed.
Drawing diagrams.
Specimens of germinating maize seed at different phases of germination.
KLB BK III. P. 141 CERTIFICATE PG 184
7 3
GROWTH & DEVELOPMENT.
Primary growth of a seedling.
By the end of the lesson, the learner should be able to:
To describe primary growth of a seedling.
Brief discussion.
KLB BK III. P 143 CERTIFICATE PG 186
7 4-5
GROWTH & DEVELOPMENT.
Region of growth in a root.
Apical meristems.
By the end of the lesson, the learner should be able to:
To determine the region of growth in a root.
To draw and label longitudinal and transverse sections of apical meristems.

Group experiments- Observe previously prepared specimens to determine regions of growth.
Discuss observations made.
Draw relevant diagrams.
Drawing and labelling transverse sections of apical meristems.
Germinating bean seeds
Cork pin
Beaker
Indian ink
Blotting paper
Ruler.
Charts- Apical meristems.
KLB BK III. P. 144 CERTIFICATE PG 186
8 1
GROWTH & DEVELOPMENT.
Secondary growth.
By the end of the lesson, the learner should be able to:
To describe secondary growth of plants.
Detailed discussion.
text book
KLB BK III. PP. 145-146 CERTIFICATE PG 187
8 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
8 3
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.
8 4-5
GROWTH & DEVELOPMENT.
Growth and development in insects.
Role of hormones in insect growth.
By the end of the lesson, the learner should be able to:
To differentiate between complete and incomplete metamorphosis.
To identify hormones that promotes insect growth.
Q/A: Features of complete and incomplete metamorphosis of insects.
Exposition and explanations.
chart
text book
KLB BK III. PP.148-14.9 CERTIFICATE PG 194
KLB BK III. PP. 148-149. CERTIFICATE PG 199
9

End of term exams


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