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.
To describe internal fertilisation and compare it with external fertilisation.

Detailed discussion.
Tabulate differences between external and internal fertilisation.

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.
Functions of parts of male reproduction system.

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.


To explain the male reproduction system.

Detailed discussion.



Drawing and labeling male reproduction system.

Wall charts-Reproduction system.
text book

KLB BK III. P. 105 CERTIFICATE PG 149
KLB BK III. PP. 106-108 CERTIFICATE PG 150

REPRODUCTION IN PLANTS AND ANIMALS

Male reproduction system of a male animal.

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

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

Reproduction system of a rabbit/ rat.

KLB BK III. P. 108 CERTIFICATE PG 164

REPRODUCTION IN PLANTS AND ANIMALS

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

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

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

REPRODUCTION IN PLANTS AND ANIMALS

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

By the end of the lesson, the learner should be able to:
To identify parts of female reproduction system of a female animal.
To draw and label the human spermatozoon.
To describe the process of formation of ova.

Examine parts of a female reproduction system.
Identify the parts.
Drawing and labelling.
Detailed discussion.
Q/A: Adaptations of male gamete to its function.

Dissected female rat/ mouse/rabbit.
text book

KLB BK III. P.110 CERTIFICATE PG 151

REPRODUCTION IN PLANTS AND ANIMALS

Fertilisation process.
Implantation.
The placenta.

By the end of the lesson, the learner should be able to:
To explain the fertilisation process.
To define implantation.
To define ectopic pregnancy.
To describe the formation of the placenta and the structure of the placenta.

Discussion
Drawing diagrams.


Drawing illustrative diagrams.
Discussion.
Exposition and discussion.

chart
text book
Chart- The placenta.

KLB BK III. PP. 113-114 CERTIFICATE PG 152
KLB BK III. P. 114 CERTIFICATE PG 153

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

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 

REPRODUCTION IN PLANTS AND ANIMALS

Lactation and parental care.
Secondary sexual characteristics.

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 state secondary sexual characteristics in males and females.

Discussion
Drawing and labelling mammary glands.
Detailed discussion.

Wall- charts mammary glands.
text book

KLB BK III. P. 120 

REPRODUCTION IN PLANTS AND ANIMALS

The menstrual cycle.
28-day menstrual cycle.
Menopause, infertility and emerging issues.

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.
To describe hormonal changes at menopause.
To discuss emerging issues related to infertility and menopause.

Detailed discussion.
Open discussion.
Interpreting illustrative charts.

Chart- Phases of human menstrual cycle.
chart
text book

KLB BK III. P. 121 CERTIFICATE PG 151
KLB BK III. P. 123 

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

GROWTH & DEVELOPMENT.

The concepts of growth and development.

By the end of the lesson, the learner should be able to:
To distinguish growth from development.

Q/A: Aspects that occur during growth.
Detailed discussion of growth and development.

text book

KLB BK III. P. 134 CERTIFICATE PG 178

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

GROWTH & DEVELOPMENT.

Growth phases.
Intermittent growth curve.
Structure of the seed.

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.
To draw and label a typical seed.
To state the functions of the parts of a seed.

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.
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.

Shoots of known ages.
chart
Specimens of maize and bean seeds.

KLB BK III. P. 135 CERTIFICATE PG 179

GROWTH & DEVELOPMENT.

Longitudinal sections of monocots and dicots.
Dormancy in seeds.

By the end of the lesson, the learner should be able to:
To identify structural differences between monocots and dicots.
To define seed dormancy.
To explain factors that cause dormancy and ways of breaking dormancy.

Obtain longitudinal section of the seeds.
Identify structural differences of the specimens.
Carry out iodine tests.
Explain the observations.
Detailed discussion.

Hand lens
Maize and bean seeds.
Iodine
Scalpels.
video

KLB BK III. P. 136  CERTIFICATE PG 182

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

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

GROWTH & DEVELOPMENT.

Hypogeal germination.
Primary growth of a seedling.
Region of growth in a root.
Apical meristems.

By the end of the lesson, the learner should be able to:
To describe hypogeal germination.
To describe primary growth of a seedling.
To determine the region of growth in a root.
To draw and label longitudinal and transverse sections of apical meristems.

Observe previously prepared specimens of germinating bean seed/ castor seed.
Drawing diagrams.
Brief discussion.
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.

Specimens of germinating maize seed at different phases of germination.
Germinating bean seeds
Cork pin
Beaker
Indian ink
Blotting paper
Ruler.
Charts- Apical meristems.

KLB BK III. P. 141 CERTIFICATE PG 184
KLB BK III. P. 144 CERTIFICATE PG 186

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

GROWTH & DEVELOPMENT.

Growth hormones.
Apical dominance.

By the end of the lesson, the learner should be able to:
To explain role of hormones in growth of plants.
To explain the role of auxins in apical dominance.

Discuss the role of IAA, gibberellins, cytokinins, and abscisic acid e.t.c, in plant growth.
Probing questions leading to definition and explanation of apical dominance.

text book
Shoot with lateral growth.

KLB BK III. P. 147 CERTIFICATE PG 190

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

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.

GENETICS

Discontinuous variation.

By the end of the lesson, the learner should be able to:
Define discontinuous variation.

Observe some discontinuous variations in human beings such as tongue rolling, sex, blood groups, etc.
Discussion on the concept of discontinuous variation.

text book

KLB BK IV.
P 3.

GENETICS

Continuous variation.

By the end of the lesson, the learner should be able to:
Define continuous variation.
Give examples of characteristics that show continuous variation.

Class activity ; students measure and record their heights;
Plotting of frequency-height graph;
Analyzing the graph;
Discussion with probing questions.

Metre rules/ tape measure,
Graph papers

KLB BK IV.
PP 3-4

GENETICS

Causes of variation.
The chromosome.

By the end of the lesson, the learner should be able to:
Discuss causes of variation.
Describe the structure of chromosomes.

Exposition of new concepts.
Discussion with probing questions.


Exposition of new concepts.
Probing questions.
Discussion.

text book

KLB BK IV.
P 4
KLB BK IV. PP 4-5.

GENETICS

Chromosomal behaviour during mitosis.

By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during mitosis.

Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.

Scissors,
Manilla papers, thread, cellotape.

KLB BK IV. PP 5-6

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

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

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

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

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

GENETICS

Ratios of phenotypes and genotypes.

By the end of the lesson, the learner should be able to:
Explain the concept of probability in inheritance of characteristics.

Q/A to review phenotypes and genotypes.
Simple experiments on probability.
Discussion.

Beans of two different colours, beakers.

KLB BK IV. PP 15-17

GENETICS

Incomplete dominance.
Inheritance of ABO blood groups.
Inheritance of Rhesus factor.

By the end of the lesson, the learner should be able to:
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.
Illustrate inheritance of blood groups with diagrams.
Describe inheritance of Rhesus factor.

Exposition;
Discussion;
Drawing diagrams.
Exposition;
Discussion;
Drawing diagrams;
Supervised practice on inheritance of blood groups.
Discussion.

chart

KLB BK IV. PP 19-20.
KLB BK IV. PP 20-21

GENETICS

Determining unknown genotypes.

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

Exposition;
Probing questions;
Drawing illustrative diagrams;
Discussion.

text book

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

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

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