ECOLOGY

Ecological pyramids of numbers.
Constructing Pyramid of numbers from given data.

By the end of the lesson, the learner should be able to:
To represent feeding relationships and energy flow using pyramids of numbers.

Q/A: Review trophic levels.
Teacher explains features of pyramid of numbers.

chart
text book

KLB BK III. PP 41-42. CERTIFICATE PG 49

ECOLOGY

Inverted pyramid of numbers.
Pyramid of Biomass.
Population.

By the end of the lesson, the learner should be able to:
Give examples where an inverted pyramid of numbers exists; giving reasons thereof.
To define biomass of an organism.
To interpret the pyramid of biomass.
To construct a biomass from given data.

Representing inverted pyramid of numbers diagrammatically.
Teacher exposes new concepts; then leads in a detailed discussion.

Students construct biomass from given data.

Chart- Inverted pyramid of numbers.
chart
text book

KLB BK III. PP 43-44 CERTIFICATE PG 50
KLB BK III. PP 44-45. CERTIFICATE PG 50

ECOLOGY

Quadrat method of estimating population.

By the end of the lesson, the learner should be able to:
To describe the quadrat method of estimating population.
To suggest limitations of quadrat method of estimating population.

Teacher explains use of quadrat method of estimating population.
Q/A: limitations of quadrat method of estimating population.
Project- students to make quadrats.

text book

KLB BK III. PP 46-47. CERTIFICATE PG 62

ECOLOGY

Quadrat method of estimating population.

By the end of the lesson, the learner should be able to:
To estimate population using quadrat method.

Students? outdoor activity- Estimating population using standard quadrats.

Standard quadrats.

KLB BK III. PP
46-47. CERTIFICATE PG 62

ECOLOGY

Line - transect method of estimating population.
Belt transect method of estimating population.

By the end of the lesson, the learner should be able to:
To describe the line transect method of population.
To suggest limitations of line transect method of population.

Teacher explains procedure of line transect method of population.
Q/A: Students suggest limitations of line transect method of population.

text book
Tape measure, quadrats, pegs, thermometer, pH indicator, e.t.c

KLB BK III.
PP 47-48. CERTIFICATE PG 63

ECOLOGY

Capture-recapture method.
Xerophytes.
Mesophytes.

By the end of the lesson, the learner should be able to:
To describe capture-recapture method of estimating population.
To suggest limitations of capture-recapture method.
To estimate population size using capture-recapture method.


To state characteristics of dry habitats.
To identify adaptations of xerophytes to their habitats.

Detailed discussion and explanations.

Q/A: Assumptions made in this method, limitations of the method.

Worked examples.
Q/A: Characteristics of dry habitats.
Discussion: Adaptations of xerophytes to dry habitats.

specimen
Specimens of xerophytes.
Specimens of mesophytes.

KLB BK III. PP 48-49. CERTIFICATE PG 61
KLB BK III. P 50. CERTIFICATE PG 64

ECOLOGY

Hydrophytes.

By the end of the lesson, the learner should be able to:
To state characteristics of habitats of hydrophytes.
To explain adaptations of hydrophytes to their habitats.

Q/A: Characteristics of habitats where hydrophytes.
thrive.

Discussion: Adaptations of hydrophytes to their habitats.

Specimens of hydrophytes.

KLB BK III. P 51. CERTIFICATE PG 66

ECOLOGY

Halophytes.

By the end of the lesson, the learner should be able to:
To state characteristics of habitats of halophytes.
To explain adaptations of halophytes to their habitats.

Q/A: Characteristics of dry habitats.
Discussion: Adaptations of dry habitats.

Specimens of halophytes.

KLB BK III. P 52. CERTIFICATE PG 68

ECOLOGY

Adaptive features of plants.

By the end of the lesson, the learner should be able to:

Group experiments- Students examine given specimens and suggest their habitats.
Identify adaptive features.

Xerophytes Mesophytes
Hydrophytes
Hand lenses.

KLB BK III. P 50. CERTIFICATE PG 69

ECOLOGY

Pollution and its effects.
Air pollution.

By the end of the lesson, the learner should be able to:
To define pollution, pollutants.
To explain effects of pollution on human beings and other organisms.

To identify causes and effects of air pollution.
To suggest control measures of air pollution.

Discussion punctuated with Q/A.
Detailed discussion & probing questions.

text book
topic related video

KLB BK III. P 55. CERTIFICATE PG 70
KLB BK III. PP 56-59. CERTIFICATE PG 70

ECOLOGY

Air pollution.

By the end of the lesson, the learner should be able to:
To identify causes and effects of air pollution.
To suggest control measures of air pollution.

Detailed discussion & probing questions.

topic related video

KLB BK III. PP 56-59. CERTIFICATE PG 70

ECOLOGY

Water pollution.

By the end of the lesson, the learner should be able to:
To identify causes and effects of water pollution.
To suggest control measures of water pollution.

Detailed discussion & Q/A.

video of water pollution

KLB BK III. P 60. CERTIFICATE PG 77

ECOLOGY

Soil pollution.

By the end of the lesson, the learner should be able to:
To identify causes and effects of soil pollution.
To suggest control measures of soil pollution.

Detailed discussion & Q/A.

text book

KLB BK III. P 62. CERTIFICATE PG 80

ECOLOGY

Radioactive emissions.
Human diseases. Typhoid & cholera.

By the end of the lesson, the learner should be able to:
To identify effects of radioactive emissions.
To state uses of nuclear energy.

To identify disease predisposing factors.
To describe causative agents, symptoms, prevention of bacterial diseases.

Brief discussion on radioactive emissions and nuclear energy
Detailed discussion with probing questions.

text book

KLB BK III. P 62. CERTIFICATE PG 72
KLB BK III. P 63. CERTIFICATE PG 82

ECOLOGY

Protozoan diseases.
Prevention and control of protozoan diseases.

By the end of the lesson, the learner should be able to:
To identify causal agents, symptoms, prevention and treatment of amoebic dysentery and malaria.

Detailed discussion, Q/A.

magazine

KLB BK III. PP 66. CERTIFICATE PG 83

ECOLOGY

Ascaris lumbricoides.

By the end of the lesson, the learner should be able to:
To identify adaptive features of Ascaris lumbricoides.
To state and explain effects of a parasite on the host.
To suggest preventive and control measures.

Group activities: Students examine preserved specimens of Ascaris lumbricoides and identify some adaptive features.

Detailed discussion.

Preserved specimens of Ascaris lumbricoides.

KLB BK III. P 67. CERTIFICATE PG 87

ECOLOGY

Bilharzia.

By the end of the lesson, the learner should be able to:
To identify causal and transmission agents of bilharzia.
To describe effects of the parasite on its host.
To identify adaptive features of schistosoma.

Brief discussion
Q/A: Effects on host and control measures.

chart

KLB BK III. P 69. CERTIFICATE PG 86

REPRODUCTION IN PLANTS AND ANIMALS

Introduction
Cell division.

By the end of the lesson, the learner should be able to:
To differentiate between sexual and asexual reproduction.
To state importance of reproduction.



To define genes and chromosomes.
To describe the role of chromosomes in cell division.

Q/A: Defination of reproduction.
Teacher illustrates and explains sexual and asexual reproduction.
Detailed discussion.

text book
chart

KLB BK III. P 78. CERTIFICATE PG 99
KLB BK III.
P 79. CERTIFICATE PG100

REPRODUCTION IN PLANTS AND ANIMALS

Mitosis.

By the end of the lesson, the learner should be able to:
To describe the process of mitosis.

Teacher leads in a detailed discussion.
Drawing diagrams showing stages of mitosis.

charts

KLB BK III.
P 80. CERTIFICATE PG 100

REPRODUCTION IN PLANTS AND ANIMALS

Mitosis in a young root tip.
Significance of mitosis.

By the end of the lesson, the learner should be able to:
To describe an experiment to show mitosis in a young root tip.

Group experiments: Observing different stages of mitosis. Drawing cells showing stages of mitosis.

Comparing drawn cells with those previously drawn.

Onion root tip.
Microscope
IM HCl
Cover slides.
text book

KLB BK III.
P 80. CERTIFICATE PG 102

REPRODUCTION IN PLANTS AND ANIMALS

Meiosis.

By the end of the lesson, the learner should be able to:
To distinguish meiosis from mitosis.
To explain the principle underlying meiosis.

Explanations

text book

KLB BK III.
P 82. CERTIFICATE PG 103

REPRODUCTION IN PLANTS AND ANIMALS

First and second meiotic divisions.

By the end of the lesson, the learner should be able to:
To describe the processes of first and second meiotic divisions.

Explanations and drawing diagrams.

Chart- stages of second meiotic division.

KLB BK III.
P 82. CERTIFICATE PG 104

REPRODUCTION IN PLANTS AND ANIMALS

First and second meiotic divisions.
Meiosis in plant cells.

By the end of the lesson, the learner should be able to:
To describe the processes of first and second meiotic divisions.
To identify various stages of meiosis.

Explanations and drawing diagrams.
Group experiments- meiosis in young flower bulbs.
Drawing cells showing stages of meiosis.
Comparing drawn cells with those previously drawn.

Chart- stages of second meiotic division.
Flower buds
IM HCl
Source of heat
Glass slide
Filter paper
Microscope

KLB BK III.
P 82. CERTIFICATE PG 104
KLB BK III.
P 82. CERTIFICATE PG 105

REPRODUCTION IN PLANTS AND ANIMALS

Significance of meiosis.

By the end of the lesson, the learner should be able to:
To explain significance of meiosis.

Detailed discussion.
Probing questions leading to differences between mitosis and meiosis.

KLB BK III.
P 82. CERTIFICATE PG 113

REPRODUCTION IN PLANTS AND ANIMALS

Asexual reproduction. Binary fission.
Spore formation.

By the end of the lesson, the learner should be able to:
To identify types of asexual reproduction.
To describe the stages of binary fission in amoeba.

Exposition and discussion.

Drawing diagrams/ discussion.

Chart- Binary fission in amoeba
Microscope bread/ ugali mould
Hand lens.

KLB BK III.
P 87.CERTIFICATE PG 113

REPRODUCTION IN PLANTS AND ANIMALS

Budding.

By the end of the lesson, the learner should be able to:
To explain conditions necessary for budding in yeast.

Exposition and discussion.

KLB BK III.
P 89.CERTIFICATE PG 113

REPRODUCTION IN PLANTS AND ANIMALS

Budding in yeast.
Sexual reproduction in plants. Structure of a flower.

By the end of the lesson, the learner should be able to:
To explain conditions necessary for budding in yeast.
To draw and label a flower.

Identifying, drawing and labeling yeast cells.
Group experiments- Examine flowers and identify parts.
Counting number of sepals, petals, stamen, carpels.

Previously prepared 10% sugar solution
Methylene blue
Microscope

Bean flower
Morning glory
Bauhinia Longitudinal section of a general flower.

KLB BK III.
P 89.CERTIFICATE PG 113
KLB BK III.
P 90.CERTIFICATE PG 117

REPRODUCTION IN PLANTS AND ANIMALS

Flower terminologies.

By the end of the lesson, the learner should be able to:
To explain terms related to flowers.

Exposition of new concepts.
Teacher demonstration- examining features of flowers.

Flowers.

KLB BK III.
P 91.CERTIFICATE PG 117

REPRODUCTION IN PLANTS AND ANIMALS

Pollination. Insect-pollinated flowers.

By the end of the lesson, the learner should be able to:
To define pollination.
To identify agents of pollination.
To describe the structure of insect-pollinated flowers.

Q/A: Definition of pollination.
Agents of pollination.
Class experiment- Structure of insect pollinated flowers.
Students identify various parts.

Insect-pollinated flowers.

KLB BK III.
P 93.CERTIFICATE PG 119

REPRODUCTION IN PLANTS AND ANIMALS

Wind-pollinated flowers.

By the end of the lesson, the learner should be able to:
To describe the structure of wind-pollinated flowers.

Class experiment-examine inflorescence of star grass/ maize/ sugarcane.
Identify glumes, spikes and spikelets.
Compare them in text books/ charts.

Wind-pollinated flowers.

KLB BK III.
PP 93-94.CERTIFICATE PG 119

REPRODUCTION IN PLANTS AND ANIMALS

Wind-pollinated flowers.
Adaptive features of wind-pollinated flowers.

By the end of the lesson, the learner should be able to:
To describe the structure of wind-pollinated flowers.
To state and explain adaptive features of wind-pollinated flowers.

Class experiment-examine inflorescence of star grass/ maize/ sugarcane.
Identify glumes, spikes and spikelets.
Compare them in text books/ charts.
Q/A: adaptive features of wind-pollinated flowers.

Wind-pollinated flowers.

KLB BK III.
PP 93-94.CERTIFICATE PG 119
KLB BK III. PP 93-94.CERTIFICATE PG 119

REPRODUCTION IN PLANTS AND ANIMALS

Features hindering self-pollination.
Fertilisation process in flowering plants.

By the end of the lesson, the learner should be able to:
To discuss features and mechanisms that hinder self-pollination in plants.

Exposition and detailed discussion.

wind & inect pollinated flower
chart

KLB BK III. PP 93-94.

REPRODUCTION IN PLANTS AND ANIMALS

Seed formation.

By the end of the lesson, the learner should be able to:

To explain formation of seeds.

Detailed discussion.

text book

KLB BK III.
P 97.CERTIFICATE PG 123

REPRODUCTION IN PLANTS AND ANIMALS

Fruit development.

By the end of the lesson, the learner should be able to:

To describe development of fruits in flowering plants.

Detailed discussion.

text book

KLB BK III.
P 98.CERTIFICATE PG 124

REPRODUCTION IN PLANTS AND ANIMALS

Fruit development.
Classification of fruits.

By the end of the lesson, the learner should be able to:

To describe development of fruits in flowering plants.

To classify fruits using specific criteria.

Detailed discussion.


Teacher presents several types of fruits and leads students in classifying them.
Detailed discussion, drawing of diagrams.

text book

A variety of fruits, petri dishes
Blades
Containers.

KLB BK III.
P 98.CERTIFICATE PG 124
KLB BK III.
P 99. CERTIFICATE PG 125

REPRODUCTION IN PLANTS AND ANIMALS

Placentation.

By the end of the lesson, the learner should be able to:

To define placentation.
To describe the process of placentation.
To identify types of placentation.

Teacher exposes the meaning of placentation.
Students examine ovaries of various fruits as the teacher exposes the types of placentation exhibited.
Students draw diagrams showing types of placentation.

Fruits
Beans
Sunflower
Pawpaw
Orange
Primrose, e.t.c

KLB BK III.
P 100.CERTIFICATE PG 130

REPRODUCTION IN PLANTS AND ANIMALS

Placentation.

By the end of the lesson, the learner should be able to:

To define placentation.
To describe the process of placentation.
To identify types of placentation.

Teacher exposes the meaning of placentation.
Students examine ovaries of various fruits as the teacher exposes the types of placentation exhibited.
Students draw diagrams showing types of placentation.

Fruits
Beans
Sunflower
Pawpaw
Orange
Primrose, e.t.c

KLB BK III.
P 100.CERTIFICATE PG 130

REPRODUCTION IN PLANTS AND ANIMALS

Fruit and seed dispersal.

By the end of the lesson, the learner should be able to:
To explain adaptive features of fruits and seeds to their agents of dispersal.

Students examine fruits and seeds, observe external features, and group them accordingly to methods of dispersal.
Detailed discussion of observations made.

text book

KLB BK III. PP. 102-103 CERTIFICATE PG 130

REPRODUCTION IN PLANTS AND ANIMALS

Internal structure of fruits.
Sexual reproduction in animals. External fertilisation.

By the end of the lesson, the learner should be able to:
To label the parts of internal structure of a fruit.

To identify the functions of internal parts of a fruit.



To describe external fertilisation in amphibians.

Teacher demonstration- Vertical sections of fruits.

Students draw and label the fruit internal structure.



Detailed discussion.

charts
Strands of eggs of frogs.

KLB BK III. P. 104 
KLB BK III.
P 105 CERTIFICATE PG 147

REPRODUCTION IN PLANTS AND ANIMALS

Internal fertilisation.

By the end of the lesson, the learner should be able to:
To describe internal fertilisation and compare it with external fertilisation.

Tabulate differences between external and internal fertilisation.

KLB BK III. P. 105CERTIFICATE PG 148

REPRODUCTION IN PLANTS AND ANIMALS

Reproduction in mammals. Reproduction in human beings.

By the end of the lesson, the learner should be able to:
To explain the reproduction process in mammals.


To draw and label the structure of male reproduction system.

Detailed discussion.



Drawing and labeling male reproduction system.

Wall charts-Reproduction system.

KLB BK III. P. 105 CERTIFICATE PG 149

REPRODUCTION IN PLANTS AND ANIMALS

Functions of parts of male reproduction system.

By the end of the lesson, the learner should be able to:
To explain the male reproduction system.

Detailed discussion.

text book

KLB BK III. PP. 106-108 CERTIFICATE PG 150

REPRODUCTION IN PLANTS AND ANIMALS

Male reproduction system of a male animal.
Female reproduction system.

By the end of the lesson, the learner should be able to:
To identify parts of male reproduction system of a rabbit/ rat.
To draw and label parts of the female reproduction system.

To examine reproduction system of a male rabbit /rat.
Identify the parts of the reproduction system.



Drawing and labeling.

Reproduction system of a rabbit/ rat.
chart

KLB BK III. P. 108 CERTIFICATE PG 164
KLB BK III. PP.
108-110. CERTIFICATE PG 164

REPRODUCTION IN PLANTS AND ANIMALS

Functions of parts of female reproduction system.
Female reproduction system of a female animal.

By the end of the lesson, the learner should be able to:
To explain the functions of parts of female reproduction system.

Detailed discussion.

chart
Dissected female rat/ mouse/rabbit.

KLB BK III. PP.
108-110 CERTIFICATE PG  150

REPRODUCTION IN PLANTS AND ANIMALS

Formation of ova.

By the end of the lesson, the learner should be able to:
To draw and label the human spermatozoon.
To describe the process of formation of ova.

Drawing and labelling.
Detailed discussion.
Q/A: Adaptations of male gamete to its function.

text book

KLB BK III. PP.
112-113 CERTIFICATE PG 151