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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 |
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 |
|
| 1 | 2-3 |
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 |
|
| 1 | 4 |
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 |
|
| 2 | 1 |
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 |
|
| 2 | 2-3 |
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 |
|
| 2 | 4 |
GASEOUS EXCHANGE
|
Stomata.
|
By the end of the
lesson, the learner
should be able to:
To describe the structure and explain the functions of stomata. |
Detailed discussion.
Drawing diagrams. |
text book
|
K.L.B. BOOK 2
P. 51 |
|
| 3 | 1 |
GASEOUS EXCHANGE
|
Opening & closing of stomata.
|
By the end of the
lesson, the learner
should be able to:
To describe and explain the mechanism of opening & closing of stomata. |
Detailed discussion.
|
text book
|
K.L.B. BOOK 2
P. 51 |
|
| 3 | 2-3 |
GASEOUS EXCHANGE
|
Opening & closing of stomata.
Stomata and habitats of plants. |
By the end of the
lesson, the learner
should be able to:
To describe and explain the mechanism of opening & closing of stomata. To relate plant habitats and the no. of stomata. To explain the variation between number of stomata on the upper and lower face. |
Detailed discussion.
Observe number of stomata of prepared slides of hydrophytes and xerophytes. Discuss the observations. |
text book
Prepared slides of hydrophytes and xerophytes. |
K.L.B. BOOK 2
P. 51 |
|
| 3 | 4 |
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 | 1 |
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 |
|
| 4 | 2-3 |
GASEOUS EXCHANGE
|
Respiratory surfaces in animals.
Gaseous exchange in protozoa. |
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. To describe the mechanism of gaseous exchange in an amoeba. |
Teacher exposes meaning of a respiratory surface.
Discuss at length, giving examples of organisms that have a given respiratory surface. 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 |
|
| 4 | 4 |
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 | 1 |
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 |
|
| 5 | 2-3 |
GASEOUS EXCHANGE
|
Number, position and shape of spiracles of insects.
Gaseous exchange in a bony fish. |
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. 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. |
Drawing the abdomen and showing the position and shape of spiracles, and giving reasons thereof.
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. |
Live specimens of insects.
A gill of a fish. |
K.L.B. BOOK 2
P. 56 K.L.B. BOOK 2 PP. 56-57 |
|
| 5 | 4 |
GASEOUS EXCHANGE
|
Gaseous exchange in a bony fish.
|
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. |
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. |
A gill of a fish.
|
K.L.B. BOOK 2
PP. 56-57 |
|
| 6 | 1 |
GASEOUS EXCHANGE
|
Gaseous exchange in amphibians.
|
By the end of the
lesson, the learner
should be able to:
To explain the mechanism of gaseous exchange in a frog. |
Q/A: Various methods of gaseous exchange in a frog.
Discuss gaseous exchange through the mouth, lungs and skin of a frog. |
text book
|
K.L.B. BOOK 2
P. 58 |
|
| 6 | 2-3 |
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
|
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 | 1 |
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 | 2-3 |
GASEOUS EXCHANGE
|
Inhalation.
Exhalation. |
By the end of the
lesson, the learner
should be able to:
To describe the process of inhalation in man. To describe the process of exhalation in man. |
Showing movements of ribs during inhalation.
Explain the inhalation mechanism. Showing movements of ribs during exhalation. Explain the exhalation mechanism. |
Chart / model of a rib cage.
|
K.L.B. BOOK 2
PP. 61-62 |
|
| 7 | 4 |
GASEOUS EXCHANGE
|
Thoracic cavity model.
|
By the end of the
lesson, the learner
should be able to:
To identify similarities between a model thoracic cavity and an actual thoracic cavity. |
Teacher presents a model thoracic cavity.
Q/A: Comparing parts of the model cavity and the actual rib cage. |
Thoracic cavity model.
|
K.L.B. BOOK 2
PP. 61-63 |
|
| 8 |
Midterm exam |
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| 8 |
Midterm break |
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| 9 | 1 |
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 |
|
| 9 | 2-3 |
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 |
|
| 9 | 4 |
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 |
|
| 10 | 1 |
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 |
|
| 10 | 2-3 |
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 |
|
| 10 | 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 |
|
| 11 | 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 |
|
| 11 | 2-3 |
GASEOUS EXCHANGE
|
Inhaled and exhaled air.
Diseases of the respiratory system. |
By the end of the
lesson, the learner
should be able to:
To test for CO2 in the air we inhale/ exhale. To state the causes, symptoms and prevention of respiratory diseases. |
Observe colour changes of lime water, and make deductions.
Brief discussion. Discuss cause, symptoms and prevention of whooping cough TB, bronchitis, etc. |
Lime water.
Resource person. |
K.L.B. BOOK 2
P. 67 K.L.B. BOOK 2 PP. 67-70 |
|
| 11 | 4 |
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 |
|
| 13 |
End of term exam |
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| 14 |
Closing |
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