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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 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 |
|
| 2 | 4-5 |
GASEOUS EXCHANGE
|
Release of CO2 by plants.
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 CO2 by plants. To describe an experiment to show release of O2 by plants. |
Class experiments including control experiments.
Explain the observations made. Teacher demonstration: Test for the gas evolved. Discuss observations. |
Bicarbonate indicator, boiling tubes, Aluminum foil.
Gas jar, Glass funnel, Water plant, Beaker. |
K.L.B. BOOK 2
P. 49 |
|
| 3 | 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. |
Detailed discussion.
Drawing diagrams. |
text book
|
K.L.B. BOOK 2
P. 51 |
|
| 3 | 2 |
GASEOUS EXCHANGE
|
Stomata and habitats of plants.
Lenticels. |
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.
text book |
K.L.B. BOOK 2
P. 51 |
|
| 3 | 3 |
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 |
|
| 3 | 4-5 |
GASEOUS EXCHANGE
|
Gaseous exchange in protozoa.
Gaseous exchange in insects. |
By the end of the
lesson, the learner
should be able to:
To describe the mechanism of gaseous exchange in an amoeba. To describe the mechanism of gaseous exchange in insects |
Q/A: Review diffusion, structure of an amoeba.
Discuss briefly gaseous exchange in and out of amoeba. Drawing tracheal system of a grasshopper. Discuss at length the structure of the tracheal system. Detailed discussion. |
text book
|
K.L.B. BOOK 2
P. 53 K.L.B. BOOK 2 PP. 53, 54 |
|
| 4 | 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 |
|
| 4 | 2 |
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. |
Drawing the abdomen and showing the position and shape of spiracles, and giving reasons thereof.
|
Live specimens of insects.
A gill of a fish. |
K.L.B. BOOK 2
P. 56 |
|
| 4 | 3 |
GASEOUS EXCHANGE
|
Gaseous exchange in amphibians.
Gaseous exchange in mammals. |
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
Wall chart- Respiratory system in man. |
K.L.B. BOOK 2
P. 58 |
|
| 4 | 4-5 |
GASEOUS EXCHANGE
|
The structure of the lungs.
Inhalation. Exhalation. |
By the end of the
lesson, the learner
should be able to:
To explain adaptations of the lungs to their functions. To describe the process of inhalation in man. |
Drawing labeled diagrams coupled with explanations.
Showing movements of ribs during inhalation. Explain the inhalation mechanism. |
Wall charts- Structure of lungs.
Chart / model of a rib cage. |
K.L.B. BOOK 2
P. 60-1 K.L.B. BOOK 2 PP. 61-62 |
|
| 5 | 1 |
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 |
|
| 5 | 2 |
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 |
|
| 5 | 3 |
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 |
|
| 5 | 4-5 |
GASEOUS EXCHANGE
|
Intercostal muscles.
Inhaled and exhaled air. |
By the end of the
lesson, the learner
should be able to:
To explain the function of intercostal muscles during the breathing system. To test for CO2 in the air we inhale/ exhale. |
Detailed discussion.
Counting number of inhalations before and after an exercise blow. Observe colour changes of lime water, and make deductions. Brief discussion. |
Lime water, rib cage model. Lime water. |
K.L.B. BOOK 2
P. 66 K.L.B. BOOK 2 P. 67 |
|
| 6 | 1 |
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 |
|
| 6 | 2 |
RESPIRATION
|
Introduction ? Definition and importance of respiration.
Burning food. |
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 |
|
| 6 | 3 |
RESPIRATION
|
The mitochondrion.
Aerobic respiration. |
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
text book |
K.L.B. BK 2
P. 74 |
|
| 6 | 4-5 |
RESPIRATION
|
Anaerobic respiration.
Oxygen ?debt?. Applications of anaerobic respiration. |
By the end of the
lesson, the learner
should be able to:
To describe anaerobic respiration. To explain applications of anaerobic respiration. |
Observe set up experiments.
Detailed discussion punctuated with probing questions: Q/A: Products of fermentation process. Listing down various applications of anaerobic respiration. |
Glucose
Yeast Thermometer text book |
K.L.B. BK 2
P.77 K.L.B. BK 2 P. 79 |
|
| 7 | 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 |
|
| 7 | 2 |
RESPIRATION
EXCRETION AND HOMEOSTASIS |
Rate of respiration.
Introduction- Definition and importance of homeostasis and excretion. |
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 |
|
| 7 | 3 |
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 |
|
| 7 | 4-5 |
EXCRETION AND HOMEOSTASIS
|
Excretion and homeostasis in unicellular organisms.
Excretion and homeostasis in animals. |
By the end of the
lesson, the learner
should be able to:
Describe excretion and homeostasis in an amoeba and a paramecium. To identify excretory organs in various animals. |
Q/A: Review diffusion, structure of an amoeba.
Discuss excretion and homeostasis in an amoeba and a paramecium. Exposition and discussion. Observe drawings of various animals showing excretory organs. |
text book
Specimens of platyhelmin-thes, annelida, insects. |
K.L.B. BK 2
PP. 84-85 K.L.B. BK 2 P. 85 |
|
| 8 | 1 |
EXCRETION AND HOMEOSTASIS
|
The mammalian skin.
|
By the end of the
lesson, the learner
should be able to:
Draw and label the structure of the mammalian skin. To describe functions of parts of the mammalian skin. |
|
Permanent slides of mammalian skin.
|
K.L.B. BK 2
PP. 86-87 |
|
| 8 | 2 |
EXCRETION AND HOMEOSTASIS
|
The lungs.
|
By the end of the
lesson, the learner
should be able to:
To explain the role of lungs as excretory organs. |
Exposition and discussion.
|
Chart/ model- Mammalian lungs.
|
K.L.B. BK 2
P. 87 |
|
| 8 | 3 |
EXCRETION AND HOMEOSTASIS
|
The kidneys structure.
|
By the end of the
lesson, the learner
should be able to:
To describe the external structure of kidney. To describe the internal structure of the kidney. |
Observe external features of a kidney.
Observe internal drawing and labeling of the kidney. |
Wall-Charts?internal organs of a kidney.
|
K.L.B. BK 2
PP. 89-90 |
|
| 8 | 4-5 |
EXCRETION AND HOMEOSTASIS
|
The nephron.
Urine formation. |
By the end of the
lesson, the learner
should be able to:
Describe features of the nephron. To explain formation of urine. |
Discuss features of the nephron.
Draw structure of the nephron. Label the diagram. Detailed discussion. |
Chart?Kidney nephron.
|
K.L.B. BK 2 PP 90 |
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