ECOLOGY

Concepts of ecology.
Abiotic factors in an ecosystem.

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

To differentiate between autecology and synecology.
Define various concepts used in ecology.

To describe various abiotic factors that affect distribution of organisms.

Exposition- Teacher exposes new concepts and explains their underlying meanings.
Detailed discussion of effect of light, temperature, pressure, wind, humidity, salinity, pH on distribution of organisms.

text book

KLB BK III. P 33 CERTIFICATE PG36
KLB BK III. P 34. CERTIFICATE PG38

ECOLOGY

Measuring abiotic factors.

By the end of the lesson, the learner should be able to:
To measure abiotic factors that affect distribution of organisms.

Group activities- Measuring temperature, humidity, pH.
Answering related questions.

Thermometers
pH meter e.t.c.

KLB BK III. P 34. CERTIFICATE PG39

ECOLOGY

Biotic inter-relationships. - Competition.
- Predation.

By the end of the lesson, the learner should be able to:
To differentiate between intraspecific and interspecific competition.
To interpret graphs representing competition between two species.
To define an ecological niche and a habitat.

Teacher exposes new concepts.


Teacher leads in interpreting graphs showing competition.

Q/A: Deductions from graphs.

Chart , graphs.
text book

KLB BK III. P 35. CERTIFICATE PG 50

ECOLOGY

- Parasitism.
- Symbiosis and Saprophytism.

By the end of the lesson, the learner should be able to:
To distinguish parasitism from predation.
To differentiate between endoparasites and ectoparasites.
To identify adaptive features of parasites.

Q/A: Pairs of parasites and hosts.
Examine specimens of endoparasites and ectoparasites.
Discuss economic importance of parasites.

Specimens of endoparasites and ectoparasites.
text book

KLB BK III. P 37. CERTIFICATE PG 53

ECOLOGY

The Nitrogen cycle.
Trophic levels.
Food chains.
Food webs.

By the end of the lesson, the learner should be able to:
Describe the nitrogen cycle.
Explain importance of micro-organisms in root nodules of plants.



To define a food chain.
To give examples of food chains.
To identify trophic levels of organism(s) in a food chain.

Discuss flow chart of nitrogen cycle.
Teacher gives an illustration of a food chain; then gives specific examples.
Q/A: Trophic levels of organisms in a food chain.

Chart-Nitrogen cycle.
Flow chart- Energy flow in an ecosystem.
chart
charts

KLB BK III. PP 40-41. CERTIFICATE PG58
KLB BK III. P 42. CERTIFICATE PG46

ECOLOGY

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

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
Chart- Inverted pyramid of numbers.

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

ECOLOGY

Pyramid of Biomass.
Population.

By the end of the lesson, the learner should be able to:
To define biomass of an organism.
To interpret the pyramid of biomass.
To construct a biomass from given data.

Teacher exposes new concepts; then leads in a detailed discussion.

Students construct biomass from given data.

chart
text book

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

ECOLOGY

Quadrat method of estimating population.
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
Standard quadrats.

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

ECOLOGY

Line - transect method of estimating population.
Belt transect method of estimating population.
Capture-recapture method.
Xerophytes.

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.

To describe capture-recapture method of estimating population.
To suggest limitations of capture-recapture method.
To estimate population size using capture-recapture method.

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

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

Worked examples.

text book
Tape measure, quadrats, pegs, thermometer, pH indicator, e.t.c
specimen
Specimens of xerophytes.

KLB BK III.
PP 47-48. CERTIFICATE PG 63
KLB BK III. PP 48-49. CERTIFICATE PG 61

ECOLOGY

Mesophytes.
Hydrophytes.

By the end of the lesson, the learner should be able to:
To state characteristics of habitats of mesophytes.

To explain adaptations of mesophytes to their habitats.

Q/A: Characteristics of habitats where mesophytes thrive.

Discussion: Adaptations of mesophytes to their habitats.

Specimens of mesophytes.
Specimens of hydrophytes.

KLB BK III. P 51. CERTIFICATE PG 69

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.
Pollution and its effects.

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.
text book

KLB BK III. P 50. CERTIFICATE PG 69

ECOLOGY

Air pollution.
Water 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.


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

Detailed discussion & probing questions.
Detailed discussion & Q/A.

topic related video
video of water pollution

KLB BK III. PP 56-59. CERTIFICATE PG 70
KLB BK III. P 60. CERTIFICATE PG 77

ECOLOGY

Soil pollution.
Radioactive emissions.

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

Human diseases. Typhoid & cholera.

By the end of the lesson, the learner should be able to:
To identify disease predisposing factors.
To describe causative agents, symptoms, prevention of bacterial diseases.

Detailed discussion with probing questions.

text book

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
ECOLOGY
REPRODUCTION IN PLANTS AND ANIMALS
REPRODUCTION IN PLANTS AND ANIMALS

Ascaris lumbricoides.
Bilharzia.
Introduction
Cell division.

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.

To identify causal and transmission agents of bilharzia.
To describe effects of the parasite on its host.
To identify adaptive features of schistosoma.

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

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

Preserved specimens of Ascaris lumbricoides.
chart
text book

KLB BK III. P 67. CERTIFICATE PG 87
KLB BK III. P 69. CERTIFICATE PG 86

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.
Meiosis in plant cells.
Significance of meiosis.
Asexual reproduction. Binary fission.

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

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

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

KLB BK III.
P 82. CERTIFICATE PG 104
KLB BK III.
P 82. CERTIFICATE PG 113

REPRODUCTION IN PLANTS AND ANIMALS

Spore formation.
Budding.

By the end of the lesson, the learner should be able to:
To describe the process of spore formation in bread// ugali mould.

Mould on bread /ugali.
Identify and draw hyphae and sporangia.

Microscope bread/ ugali mould
Hand lens.

KLB BK III.
P 88.CERTIFICATE PG 114

REPRODUCTION IN PLANTS AND ANIMALS

Budding in yeast.

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

Identifying, drawing and labeling yeast cells.

Previously prepared 10% sugar solution
Methylene blue
Microscope

KLB BK III.
P 89.CERTIFICATE PG 113

REPRODUCTION IN PLANTS AND ANIMALS

Sexual reproduction in plants. Structure of a flower.
Flower terminologies.

By the end of the lesson, the learner should be able to:
To draw and label a flower.

Group experiments- Examine flowers and identify parts.
Counting number of sepals, petals, stamen, carpels.

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

KLB BK III.
P 90.CERTIFICATE PG 117

REPRODUCTION IN PLANTS AND ANIMALS

Pollination. Insect-pollinated flowers.
Wind-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.
To describe the structure of wind-pollinated flowers.

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

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

Insect-pollinated flowers.
Wind-pollinated flowers.

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

REPRODUCTION IN PLANTS AND ANIMALS

Adaptive features of wind-pollinated flowers.
Features hindering self-pollination.

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

Q/A: adaptive features of wind-pollinated flowers.

Wind-pollinated flowers.
wind & inect pollinated flower

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

REPRODUCTION IN PLANTS AND ANIMALS

Fertilisation process in flowering plants.

By the end of the lesson, the learner should be able to:
To define fertilisation.

To describe the fertilisation process in flowering plants.

Drawing diagrams,
detailed discussion.

chart

KLB BK III.
P 95.CERTIFICATE PG 121

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

Classification of fruits.
Placentation.

By the end of the lesson, the learner should be able to:
To classify fruits using specific criteria.

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

A variety of fruits, petri dishes
Blades
Containers.
Fruits
Beans
Sunflower
Pawpaw
Orange
Primrose, e.t.c

KLB BK III.
P 99. CERTIFICATE PG 125

REPRODUCTION IN PLANTS AND ANIMALS

Fruit and seed dispersal.
Internal structure of fruits.

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.
To label the parts of internal structure of a fruit.

To identify the functions of internal parts of a fruit.

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



Teacher demonstration- Vertical sections of fruits.

Students draw and label the fruit internal structure.

text book
charts

KLB BK III. PP. 102-103 CERTIFICATE PG 130
KLB BK III. P. 104 

REPRODUCTION IN PLANTS AND ANIMALS

Sexual reproduction in animals. External fertilisation.
Internal fertilisation.

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


To describe external fertilisation in amphibians.

Detailed discussion.

Strands of eggs of frogs.

KLB BK III.
P 105 CERTIFICATE PG 147

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.
Male reproduction system of a male animal.

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

Detailed discussion.

text book
Reproduction system of a rabbit/ rat.

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

REPRODUCTION IN PLANTS AND ANIMALS

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

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

Drawing and labeling.
Detailed discussion.

chart
chart
Dissected female rat/ mouse/rabbit.
text book

KLB BK III. PP.
108-110. CERTIFICATE PG 164
KLB BK III. PP.
108-110 CERTIFICATE PG  150

REPRODUCTION IN PLANTS AND ANIMALS

Fertilisation process.
Implantation.

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

Discussion
Drawing diagrams.

chart
text book

KLB BK III. PP. 113-114 CERTIFICATE PG 152

REPRODUCTION IN PLANTS AND ANIMALS

The placenta.
Role of the placenta. Placental exchanges.

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.
text book

KLB BK III. P. 115 CERTIFICATE PG 159

REPRODUCTION IN PLANTS AND ANIMALS

Pregnancy and hormones.
Abortion, miscarriage, birth.

By the end of the lesson, the learner should be able to:
To identify functions of human oestrogen and progestrone during pregnancy.

Tabulate functional differences.

text book

CERTIFICATE PG 160

REPRODUCTION IN PLANTS AND ANIMALS

Lactation and parental care.
Secondary sexual characteristics.
The menstrual cycle.
28-day menstrual cycle.

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.
To explain the role of hormones in the menstrual cycle.

Discussion

Drawing and labelling mammary glands.

Detailed discussion.

Wall- charts mammary glands.
text book
Chart- Phases of human menstrual cycle.
chart

KLB BK III. P. 120 
KLB BK III. P. 121 CERTIFICATE PG 151

REPRODUCTION IN PLANTS AND ANIMALS

Menopause, infertility and emerging issues.
Sexually Transmitted Infections & HIV/AIDS.

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
Chart- STIs causal agents, symptoms, prevention and control measures.

KLB BK III. P. 123