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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1
TRANSPORT IN PLANTS AND ANIMALS
Immune responses.
By the end of the lesson, the learner should be able to:
To differentiate between natural and acquired immunity.
To explain the role of vaccines in immune responses.
Detailed explanations and open discussion.
To explain the role of vaccination / immunization.
Open discussion on HIV / AIDS.
Chart- Diseases that children are immunized against;
Resource person.
K.L.B. BOOK 2
Pages 40 - 41
2 2
TRANSPORT IN PLANTS AND ANIMALS
Allergic reactions.
By the end of the lesson, the learner should be able to:
To define an allergic reaction.
To identify ways in which allergy presents itself.
To explain cause of allergic reactions.
Q/A: Manifestations of allergy.

Exposition and brief explanations.
text book
K.L.B. BOOK 2
Page 43
2 3
TRANSPORT IN PLANTS AND ANIMALS
Organ transplant.
By the end of the lesson, the learner should be able to:
To identify organs that are normally transplanted.
Q/A: Organs transplanted.

Superficial discussion.

Topic review.
text book
K.L.B. BOOK 2
Page 43
2 4
GASEOUS EXCHANGE
Introduction. Gaseous exchange in plants.
By the end of the lesson, the learner should be able to:


To explain importance of gaseous exchange.

To describe gaseous exchange in plants.


Discussion
Explanations

Q/A: Products of respiration.
Detailed discussion.
text book
K.L.B. BOOK 2
P. 48
3 1
GASEOUS EXCHANGE
Release of CO2 by plants.
By the end of the lesson, the learner should be able to:
To describe an experiment to show release of CO2 by plants.
Class experiments including control experiments.

Explain the observations made.
Bicarbonate indicator, boiling tubes, Aluminum foil.
K.L.B. BOOK 2
P. 49
3 2
GASEOUS EXCHANGE
Release of CO2 by plants.
By the end of the lesson, the learner should be able to:
To describe an experiment to show release of CO2 by plants.
Class experiments including control experiments.

Explain the observations made.
Bicarbonate indicator, boiling tubes, Aluminum foil.
K.L.B. BOOK 2
P. 49
3 3
GASEOUS EXCHANGE
Release of O2 by plants.
By the end of the lesson, the learner should be able to:
To describe an experiment to show release of O2 by plants.
Teacher demonstration: Test for the gas evolved.
Discuss observations.
Gas jar,
Glass funnel,
Water plant,
Beaker.
K.L.B. BOOK 2
P. 49
3 4
GASEOUS EXCHANGE
Release of O2 by plants.
By the end of the lesson, the learner should be able to:
To describe an experiment to show release of O2 by plants.
Teacher demonstration: Test for the gas evolved.
Discuss observations.
Gas jar,
Glass funnel,
Water plant,
Beaker.
K.L.B. BOOK 2
P. 49
4 1
GASEOUS EXCHANGE
Stomata.
Opening & closing of stomata.
By the end of the lesson, the learner should be able to:
To describe the structure and explain the functions of stomata.
To describe and explain the mechanism of opening & closing of stomata.
Detailed discussion.
Drawing diagrams.
text book
K.L.B. BOOK 2
P. 51
4 2
GASEOUS EXCHANGE
Stomata and habitats of plants.
By the end of the lesson, the learner should be able to:
To relate plant habitats and the no. of stomata.
To explain the variation between number of stomata on the upper and lower face.
Observe number of stomata of prepared slides of hydrophytes and xerophytes.

Discuss the observations.
Prepared slides of hydrophytes and xerophytes.
K.L.B. BOOK 2
P. 51
4 3
GASEOUS EXCHANGE
Lenticels.
By the end of the lesson, the learner should be able to:
To describe and explain the mechanism of lenticels.
Detailed discussion.
text book
K.L.B. BOOK 2
P. 52
4 4
GASEOUS EXCHANGE
Respiratory surfaces in animals.
By the end of the lesson, the learner should be able to:
To define a respiratory surface.
To state characteristics of respiratory surfaces.
To identify the environment or medium of operation of respiratory surfaces.
Teacher exposes meaning of a respiratory surface.
Discuss at length, giving examples of organisms that have a given respiratory surface.
text book
K.L.B. BOOK 2
P. 53
5 1
GASEOUS EXCHANGE
Gaseous exchange in protozoa.
By the end of the lesson, the learner should be able to:
To describe the mechanism of gaseous exchange in an amoeba.
Q/A: Review diffusion, structure of an amoeba.
Discuss briefly gaseous exchange in and out of amoeba.
text book
K.L.B. BOOK 2
P. 53
5 2
GASEOUS EXCHANGE
Gaseous exchange in insects.
By the end of the lesson, the learner should be able to:
To describe the mechanism of gaseous exchange in insects
Drawing tracheal system of a grasshopper.
Discuss at length the structure of the tracheal system.
Detailed discussion.
text book
K.L.B. BOOK 2
PP. 53, 54
5 3
GASEOUS EXCHANGE
Gaseous exchange in insects.
By the end of the lesson, the learner should be able to:
To describe the mechanism of gaseous exchange in insects
Drawing tracheal system of a grasshopper.
Discuss at length the structure of the tracheal system.
Detailed discussion.
text book
K.L.B. BOOK 2
PP. 53, 54
5 4
GASEOUS EXCHANGE
Breathing in insects.
By the end of the lesson, the learner should be able to:
To describe the breathing mechanism in an insect.
Observe breathing movements of live specimens of grasshoppers, locusts or cockroaches.
Live specimens of insects,
Hand lenses,
Boiling tubes.
K.L.B. BOOK 2
P. 56
6 1
GASEOUS EXCHANGE
Number, position and shape of spiracles of insects.
By the end of the lesson, the learner should be able to:
To give an account of the number, position and shape of spiracles of insects.
Drawing the abdomen and showing the position and shape of spiracles, and giving reasons thereof.
Live specimens of insects.
K.L.B. BOOK 2
P. 56
6 2
GASEOUS EXCHANGE
Gaseous exchange in a bony fish.
Gaseous exchange in amphibians.
By the end of the lesson, the learner should be able to:
To describe the structure of gills of a bony fish.
To explain how a gill is adapted to function as a respiratory surface.
To explain the mechanism of gaseous exchange in gills.
To explain the mechanism of gaseous exchange in a frog.
Drawing and labeling a gill of a fish; stating the function of each part; and stating how it is adapted to its functions.
Detailed discussion.
Q/A: Various methods of gaseous exchange in a frog.
Discuss gaseous exchange through the mouth, lungs and skin of a frog.
A gill of a fish.
text book
K.L.B. BOOK 2
PP. 56-57
6 3
GASEOUS EXCHANGE
Gaseous exchange in mammals.
By the end of the lesson, the learner should be able to:
To list down parts of the tracheal system in man.
To describe the function of the parts of a system respiratory.
Discuss at length man?s respiratory system.
Wall chart- Respiratory system in man.
K.L.B. BOOK 2
P. 59
6 4
GASEOUS EXCHANGE
Gaseous exchange in mammals.
By the end of the lesson, the learner should be able to:
To list down parts of the tracheal system in man.
To describe the function of the parts of a system respiratory.
Discuss at length man?s respiratory system.
Wall chart- Respiratory system in man.
K.L.B. BOOK 2
P. 59
7 1
GASEOUS EXCHANGE
The structure of the lungs.
By the end of the lesson, the learner should be able to:
To explain adaptations of the lungs to their functions.
Drawing labeled diagrams coupled with explanations.
Wall charts- Structure of lungs.
K.L.B. BOOK 2
P. 60-1
7 2
GASEOUS EXCHANGE
Inhalation.
By the end of the lesson, the learner should be able to:
To describe the process of inhalation in man.
Showing movements of ribs during inhalation.
Explain the inhalation mechanism.
Chart / model of a rib cage.
K.L.B. BOOK 2
PP. 61-62
7 3
GASEOUS EXCHANGE
Exhalation.
Thoracic cavity model.
By the end of the lesson, the learner should be able to:
To describe the process of exhalation in man.
To identify similarities between a model thoracic cavity and an actual thoracic cavity.
Showing movements of ribs during exhalation.
Explain the exhalation mechanism.
Teacher presents a model thoracic cavity.
Q/A: Comparing parts of the model cavity and the actual rib cage.
Chart / model of a rib cage.
Thoracic cavity model.
K.L.B. BOOK 2
PP. 61-62
7 4
GASEOUS EXCHANGE
Gaseous exchange in an alveolus.
By the end of the lesson, the learner should be able to:
To describe gaseous exchange in an alveolus.
To explain regulation of breathing in man.
Discussion and explanations.
text book
K.L.B. BOOK 2
P. 64
8 1
GASEOUS EXCHANGE
Rate of breathing in man.
By the end of the lesson, the learner should be able to:
To state and explain briefly factors affecting the rate of inhalation / exhalation processes.
Discussion and explanations.
text book
K.L.B. BOOK 2
P. 63
8 2
GASEOUS EXCHANGE
Rate of breathing in man.
By the end of the lesson, the learner should be able to:
To state and explain briefly factors affecting the rate of inhalation / exhalation processes.
Discussion and explanations.
text book
K.L.B. BOOK 2
P. 63
8 3
GASEOUS EXCHANGE
Intercostal muscles.
By the end of the lesson, the learner should be able to:
To explain the function of intercostal muscles during the breathing system.
Detailed discussion.
Counting number of inhalations before and after an exercise blow.

Lime water, rib cage model.
K.L.B. BOOK 2
P. 66
8 4
GASEOUS EXCHANGE
Intercostal muscles.
By the end of the lesson, the learner should be able to:
To explain the function of intercostal muscles during the breathing system.
Detailed discussion.
Counting number of inhalations before and after an exercise blow.

Lime water, rib cage model.
K.L.B. BOOK 2
P. 66
9 1
GASEOUS EXCHANGE
Inhaled and exhaled air.
By the end of the lesson, the learner should be able to:
To test for CO2 in the air we inhale/ exhale.
Observe colour changes of lime water, and make deductions.
Brief discussion.
Lime water.
K.L.B. BOOK 2
P. 67
9 2
GASEOUS EXCHANGE
Diseases of the respiratory system.
By the end of the lesson, the learner should be able to:
To state the causes, symptoms and prevention of respiratory diseases.
Discuss cause, symptoms and prevention of whooping cough TB, bronchitis, etc.
Resource person.
K.L.B. BOOK 2
PP. 67-70
9 3
RESPIRATION
Introduction ? Definition and importance of respiration.
By the end of the lesson, the learner should be able to:
By the end of the lesson, the learner should be able:
To define respiration.
To explain significance of respiration.
Q/A: Definition

Brief discussion of significance of respiration.
text book
K.L.B. BK 2
PP. 73-74
9 4
RESPIRATION
Burning food.
By the end of the lesson, the learner should be able to:
To describe an experiment investigating the gas given off when food is burnt.
Teacher demonstration: Burning a food sample.
Testing for the gas evolved during combustion.
text book
K.L.B. BK 2
PP. 73-74
10 1
RESPIRATION
The mitochondrion.
By the end of the lesson, the learner should be able to:
To state functions of mitochondrion in respiration.
Drawing structure of the mitochondrion.
Explain function of the mitochondrion.
Wall charts- The mitochond-rion
K.L.B. BK 2
P. 74
10 2
RESPIRATION
Aerobic respiration.
Anaerobic respiration.
By the end of the lesson, the learner should be able to:
To explain phases of aerobic respiration.
To state difference between aerobic and anaerobic respiration.
To describe anaerobic respiration.
Detailed discussion.
Writing down equations of food breakdown.
Observe set up experiments.
Detailed discussion punctuated with probing questions:
text book
Glucose
Yeast
Thermometer
K.L.B. BK 2
PP.74-76
10 3
RESPIRATION
Oxygen ?debt?.
By the end of the lesson, the learner should be able to:
To explain the term ?oxygen debt?.
To explain the effect of ?oxygen debt? on the amount of energy released during respiration.
Probing questions.

Detailed discussion.
text book
K.L.B. BK 2
P.78
10 4
RESPIRATION
Applications of anaerobic respiration.
By the end of the lesson, the learner should be able to:
To explain applications of anaerobic respiration.
Q/A: Products of fermentation process.
Listing down various applications of anaerobic respiration.
text book
K.L.B. BK 2
P. 79
11 1
RESPIRATION
Respiratory substrates & respiratory quotient.
By the end of the lesson, the learner should be able to:
To identify respiratory substrates in the body.
To define respiratory quotient.
To calculate R.Q.
Brief discussion/ explanations.

Exposition of definition and its significance.
Problem solving.
text book
K.L.B. BK 2
P. 79
11 2
RESPIRATION
Respiratory substrates & respiratory quotient.
By the end of the lesson, the learner should be able to:
To identify respiratory substrates in the body.
To define respiratory quotient.
To calculate R.Q.
Brief discussion/ explanations.

Exposition of definition and its significance.
Problem solving.
text book
K.L.B. BK 2
P. 79
11 3
RESPIRATION
Rate of respiration.
By the end of the lesson, the learner should be able to:
To state and explain factors affecting rate of respiration.
Detailed discussion and explanations.
text book
K.L.B. BK 2
PP. 80-81
11 4
EXCRETION AND HOMEOSTASIS
Introduction- Definition and importance of homeostasis and excretion.
By the end of the lesson, the learner should be able to:


To define homeostasis and excretion.
To explain necessity of excretion in plants and animals.


Q/A: Definitions of digestion, ingestion and egestion, secretion and excretion.

Discuss importance of excretion in plants and animals.
text book
K.L.B. BK 2
PP. 83-84
12 1
EXCRETION AND HOMEOSTASIS
Excretion in plants.
By the end of the lesson, the learner should be able to:
To name plants excretory products.
To state uses of excretory products of plants.
Probing questions.
Exposition of new terms.
Discuss uses and abuses of plant excretory products.
Some plants excretory products.
K.L.B. BK 2
PP. 83-84
12 2
EXCRETION AND HOMEOSTASIS
Excretion and homeostasis in unicellular organisms.
By the end of the lesson, the learner should be able to:
Describe excretion and homeostasis in an amoeba and a paramecium.
Q/A: Review diffusion, structure of an amoeba.
Discuss excretion and homeostasis in an amoeba and a paramecium.
text book
K.L.B. BK 2
PP. 84-85
12 3
EXCRETION AND HOMEOSTASIS
Excretion and homeostasis in animals.
By the end of the lesson, the learner should be able to:
To identify excretory organs in various animals.
Exposition and discussion.
Observe drawings of various animals showing excretory organs.
Specimens of platyhelmin-thes, annelida, insects.
K.L.B. BK 2
P. 85
12 4
EXCRETION AND HOMEOSTASIS
Excretion and homeostasis in animals.
By the end of the lesson, the learner should be able to:
To identify excretory organs in various animals.
Exposition and discussion.
Observe drawings of various animals showing excretory organs.
Specimens of platyhelmin-thes, annelida, insects.
K.L.B. BK 2
P. 85

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