GENETICS

Inheritance of Rhesus factor.
Determining unknown genotypes.

By the end of the lesson, the learner should be able to:
Describe inheritance of Rhesus factor.
Determine unknown genotypes using test crosses and selfing crosses.

Exposition;
Discussion.

Exposition;
Probing questions;
Drawing illustrative diagrams;
Discussion.

chart
text book

KLB BK IV. PP 21-22
KLB BK IV. PP 22-23

GENETICS

Sex determination in man.

By the end of the lesson, the learner should be able to:
Describe sex determination in man.

Exposition;
Drawing illustrative diagrams;
Discussion.

KLB BK IV. PP 23-24

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

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

GENETICS

Non-disjunction.
Gene mutation.

By the end of the lesson, the learner should be able to:
Explain effects of non-disjunction as a chromosomal abnormality.
Differentiate between chromosomal and gene mutation.
Identify types of gene mutation.

Exposition of new concepts;
Discussion.

Q/A to review types of chromosomal mutation;
Using sequence models to show chromosomal mutations.
Discussion.

text book
Models to show Chromosomal mutations.

KLB BK IV. PP 30-33
KLB BK IV. PP 33-35

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

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

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

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

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

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

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

EVOLUTION

Comparative anatomy and homologous structures. (contd)
Convergent evolution and analogous structures.
Convergent evolution and analogous structures.(contd)

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.
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
KLB BK IV. PP 63-64

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

EVOLUTION

Larmack?s theory of evolution.
Darwin?s theory of natural selection.

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.

Expositions and explanations.
Expositions and explanations;
Probing questions;
Topic review.

text book

KLB BK IV. P 67

RECEPTION, RESPONSE & CO-ORDINATION

Meaning of stimulus, response and irritability. Tactic responses.

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




Define of stimulus, response and irritability.
Explain the need for sensitivity and response.
Identify types of tactics responses.

Brain storming;
Exposition;
Group experiments-chemotaxis in termites;
Discussion.

Brad crumbs, termites, dry sand, moth balls.

KLB BK IV. PP 73-74

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

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

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

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

RECEPTION, RESPONSE & CO-ORDINATION

Response and Co-ordination in animals. The nervous system.
Types of neurons. The brain.

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




State components of the nervous system.
Describe the structure of nerve cells.
Identify types of neurons.

Describe structure of the human brain.

Descriptive and expository approaches.

Illustrative diagrams.

KLB BK IV. PP 84-85
KLB BK IV. PP 85-88

RECEPTION, RESPONSE & CO-ORDINATION

Reflex actions.

By the end of the lesson, the learner should be able to:
Differentiate between simple and conditioned reflex actions.

Illustrate a simple reflex arc.
Probing questions on differences between simple and conditioned reflex actions.

Illustrative diagrams.

KLB BK IV. PP 88-90

RECEPTION, RESPONSE & CO-ORDINATION

Transmission of a nerve impulse.

By the end of the lesson, the learner should be able to:
Describe the transmission of a nerve impulse.

Descriptive and expository approaches.

Illustrative diagrams.

KLB BK IV. PP 90-93

RECEPTION, RESPONSE & CO-ORDINATION

The endocrine system.

By the end of the lesson, the learner should be able to:
Identify components of endocrine system.
Compare endocrine system. With nervous system.

Discussion; tabulate the differences.

Illustrative diagrams.

KLB BK IV. PP 93-6

RECEPTION, RESPONSE & CO-ORDINATION

The mammalian eye.

By the end of the lesson, the learner should be able to:
Identify major parts of the human eye.
Explain image formation and interpretation in the eye.

Brain storming;
Discussion with probing questions.

Chart- the human eye.

KLB BK IV. PP 93-100

RECEPTION, RESPONSE & CO-ORDINATION

Accommodation of the eye.

By the end of the lesson, the learner should be able to:
Explain the role of ciliary muscles in accommodation of the eye.

Discussion with probing questions,
Drawing illustrative diagrams.

Chart- focusing far and near points.

KLB BK IV. PP 100-1

RECEPTION, RESPONSE & CO-ORDINATION

Defects of vision and their correction.

By the end of the lesson, the learner should be able to:
Identify defects of vision.
Explain correction of vision defects.

Detailed discussion with probing questions;
Drawing illustrative diagrams.

Illustrative diagrams.

KLB BK IV. PP 101-4

RECEPTION, RESPONSE & CO-ORDINATION

The human ear.

By the end of the lesson, the learner should be able to:
Identify major parts of the human ear.

Descriptive and expository approaches.
Drawn diagrams.

Illustrative diagrams.

KLB BK IV. PP 104-5

RECEPTION, RESPONSE & CO-ORDINATION

Hearing.
Body balance and posture.
Defects of the ear.

By the end of the lesson, the learner should be able to:
Explain how the ear perceives sound.
Explain how the ear maintains body balance and posture.
Identify some defects of the ear.

Descriptive and expository approaches.
Descriptive and expository approaches.

Illustrative diagrams.
text book

KLB BK IV. P 106
KLB BK IV.
P 108

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

Importance of support and movement in plants.

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





Explain the importance of support and movement in plants.

Brain storming;
Probing questions;
Discussion.

text book

KLB BK IV. PP 111-2

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

Arrangement of tissues in a monocotyledonous stem.

By the end of the lesson, the learner should be able to:
Draw and label a transverse section of a monocotyledonous stem.

Examine transverse section of a monocotyledonous stem.

Monocotyledo-nous stem, eg. tradescantia, microscope,
Razors.

KLB BK IV. PP111-2.

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

Arrangement of tissues in a dicotyledonous stem.

By the end of the lesson, the learner should be able to:
Draw and label a transverse section of a dicotyledonous stem.
Draw and label a transverse section of herbaceous and woody stems.

Examine transverse section of a dicotyledonous stem, herbaceous and woody stems.

Herbaceous stem, microscope, slides,
Razors.

KLB BK IV. PP 111-5

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

Stem tissues.
Wilting in plants.

By the end of the lesson, the learner should be able to:
Identify some stem tissues.
Explain the role of stem tissues.
Compare the rate of wilting of herbaceous and woody stems.
Account for difference in rate of water loss.

Drawing and labeling diagrams;
Discussion.
Uproot herbaceous and woody plants;
Observe tem for about 30 min;
Brief discussion.

Illustrative diagrams.

KLB BK IV. PP 113-5
KLB BK IV. P 116

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

The exoskeleton.

By the end of the lesson, the learner should be able to:
Describe the structure of the exoskeleton.

Examine movement of a live arthropod;
Observe muscles of the hind limb of a grasshopper;
Relate the observations to the function of the exoskeleton.

A live arthropod,
E.g. grasshopper, millipede.

KLB BK IV. PP 116-7

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

The endoskeleton.

By the end of the lesson, the learner should be able to:
Describe the structure of the endoskeleton.

Observe skeleton of a vertebrate;
Compare it with an exoskeleton.
Discuss the contrasting features.

The human skeleton.

KLB BK IV. PP 117-8

SUPPORT & MOVEMENT IN PLANTS AND ANIMALS

The endoskeleton.

By the end of the lesson, the learner should be able to:
Describe the structure of the endoskeleton.

Observe skeleton of a vertebrate;
Compare it with an exoskeleton.
Discuss the contrasting features.

The human skeleton.

KLB BK IV. PP 117-8