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

Placentation.
Sexual reproduction in animals. External fertilisation.

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.


To describe external fertilisation in amphibians.

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.

Detailed discussion.

Fruits
Beans
Sunflower
Pawpaw
Orange
Primrose, e.t.c
Strands of eggs of frogs.

KLB BK III.
P 100.CERTIFICATE PG 130
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

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 explain the functions of parts of female reproduction system.
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.

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

chart
Dissected female rat/ mouse/rabbit.
text book

KLB BK III. PP.
108-110 CERTIFICATE PG  150
KLB BK III. P.110 CERTIFICATE PG 151

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

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

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.
To state and explain the role of the placenta.
To identify substances allowed / not allowed to pass through the placenta

Exposition and discussion.
Exposition and discussion. Drawing diagrams showing placental exchanges.
Detailed discussion.

Chart- The placenta.
text book

KLB BK III. P. 115 CERTIFICATE PG 159

REPRODUCTION IN PLANTS AND ANIMALS

Pregnancy and hormones.
The menstrual cycle.

By the end of the lesson, the learner should be able to:
To identify functions of human oestrogen and progestrone during pregnancy.
To explain the role of hormones in the menstrual cycle.

Tabulate functional differences.
Detailed discussion.

text book
Chart- Phases of human menstrual cycle.

CERTIFICATE PG 160
KLB BK III. P. 121 CERTIFICATE PG 151

GROWTH & DEVELOPMENT.

The concepts of growth and development.
Measurement of growth.

By the end of the lesson, the learner should be able to:
To distinguish growth from development.
To identify aspects that indicate growth of an organism.
Sketch a growth curve.

Q/A: Aspects that occur during growth.
Detailed discussion of growth and development.
Discuss growth aspects-height, weight and volume.

text book

KLB BK III. P. 134 CERTIFICATE PG 178

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

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

GROWTH & DEVELOPMENT.

Intermittent growth curve.
Structure of the seed.
Longitudinal sections of monocots and dicots.

By the end of the lesson, the learner should be able to:
Explain growth curve showing intermittent growth.
To draw and label a typical seed.
To state the functions of the parts of a seed.
To identify structural differences between monocots and dicots.

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

chart
Specimens of maize and bean seeds.
Hand lens
Maize and bean seeds.
Iodine
Scalpels.

KLB BK III. P. 135 CERTIFICATE PG 179
KLB BK III. P. 136  CERTIFICATE PG 182

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

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.

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.

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.

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

KLB BK III. P. 141 CERTIFICATE PG 184
KLB BK III. P 143 CERTIFICATE PG 186

GROWTH & DEVELOPMENT.

Apical meristems.

By the end of the lesson, the learner should be able to:
To draw and label longitudinal and transverse sections of apical meristems.

Drawing and labelling transverse sections of apical meristems.

Charts- Apical meristems.

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.

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

GROWTH & DEVELOPMENT.

Apical dominance.
Growth and development in insects.
Role of hormones in insect growth.

By the end of the lesson, the learner should be able to:
To explain the role of auxins in apical dominance.
To differentiate between complete and incomplete metamorphosis.
To identify hormones that promotes insect growth.

Probing questions leading to definition and explanation of apical dominance.
Q/A: Features of complete and incomplete metamorphosis of insects.
Exposition and explanations.

Shoot with lateral growth.
chart
text book

KLB BK III. PP. 147-148.
KLB BK III. PP. 148-149. CERTIFICATE PG 199

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

Continuous variation.
Causes of variation.

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





Discuss causes of variation.

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

Exposition of new concepts.
Discussion with probing questions.

Metre rules/ tape measure,
Graph papers
text book

KLB BK IV.
PP 3-4

KLB BK IV.
P 4

GENETICS

The chromosome.

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

Exposition of new concepts.
Probing questions.
Discussion.

text book

KLB BK IV. PP 4-5.

GENETICS

The chromosome.

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

Exposition of new concepts.
Probing questions.
Discussion.

text book

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.
Genes and DNA.

By the end of the lesson, the learner should be able to:
Describe chromosomal behaviour during meiosis.
Describe the structure of genes and DNA.
Identify the role of DNA.

Exposition;
Teacher demonstrations;
Drawing diagrams;
Detailed discussion.

Expository approach.

Scissors,
Manilla papers, threads, cellotape.
Chart- the double helix DNA.

KLB BK IV. PP 6-7
KLB BK IV. PP 7-8

GENETICS

DNA replication.

By the end of the lesson, the learner should be able to:
Describe DNA replication.
Explain the role of DNA in protein synthesis.

Exposition;
Drawing mRNA strands.

text book

KLB BK IV. PP 9-10

GENETICS

First law of heredity.

By the end of the lesson, the learner should be able to:
Describe Mendel?s experiments.
State Mendel?s first law.

Exposition with explanations.

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

Monohybrid inheritance.
Genetic crosses using a punnet square.

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.
Show fusion of gametes using a punnet square.

Q/A to review Mendel?s first law.
Drawing diagrams to show genetic crosses.
Discussion with probing questions.

Completing a punnet square;
Brief discussion.

text book

KLB BK IV. PP 12-14
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

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.

By the end of the lesson, the learner should be able to:
Cite examples of incomplete dominance.
Illustrate incomplete dominance with diagrams.

Exposition;
Discussion;
Drawing diagrams.

chart

KLB BK IV. PP 19-20.

GENETICS

Inheritance of ABO blood groups.
Inheritance of Rhesus factor.

By the end of the lesson, the learner should be able to:
Illustrate inheritance of blood groups with diagrams.

Describe inheritance of Rhesus factor.

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

chart

KLB BK IV. PP 20-21
KLB BK IV. PP 21-22

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

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