2022/2023 First Term Biology Scheme Of Work For SS2

Biology Scheme of work

UNIFIED SCHEME OF WORK FOR BIOLOGY

CLASS: SENIOR SECONDARY SCHOOL TWO

TERM: FIRST TERM SCHEME OF WORK

WEEK 1

GENERAL CLEANING AND REVISION

WEEK 2

TOPIC

Digestive System

CONTENT

  1. Types of alimentary tracts
  2. Similarities and differences in the alimentary canals of different animals.
  3. Digestive system and digestion in man

BEHAVIORAL OBJECTIVES

Learners should be able to describe with appropriate illustration different types of alimentary tracts

INSTRUCTIONAL MATERIALS

Dissected specimens showing the alimentary canals of an earthworm, bird, and rabbit.

TEACHER ACTIVITIES

Teachers used the dissected specimens, models, or charts, to teach the alimentary canals of plenaries, earthworms, grasshoppers, birds, and rabbits

LEARNERS ACTIVITIES

Learners observed the learning materials and compare the various alimentary canals

WEEK 3

TOPIC

Transport System

CONTENT

  1. needs for transportation
  2. material for transportation, e.g. food oxygen, etc. media of transportation (cytoplasm lymph blood, etc.
  3. composition and function of blood and lymph 

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. explain the necessity of a transport system in a complex organism
  2. identify the source of material and where they are transported to
  3. discuss the different types of transport media, such as cytoplasm, the cell sap, lymph, and blood.

INSTRUCTIONAL MATERIALS

Charts of cockroach or grasshopper, toad or frog, and a named small mammal.

WEEK 4

TOPIC

Transport system

CONTENT

  1. The circulatory system in mammals
  2. structure of the mammalian heart, arteries, veins, and capillaries
  3. types and mechanisms in circulation
  4. open and close circulation
  5. single and double circulation 

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. describe the structure of arteries veins and capillaries
  2. name two transportation media in large animals

INSTRUCTIONAL MATERIALS

  1. Diagram showing arteries, veins, capillaries, and vascular bundles 
  2. prepare slides of artery and vein.

TEACHER ACTIVITIES

  1. The teacher explains the structure of artery, vein, etc. using well label diagrams
  2. mounts a slide of blood smear and transverse section of an artery and vein

LEARNERS ACTIVITIES

Learners examine and draw dissected specimens

WEEK 5

TOPIC Transport system cont.

CONTENT

  1. Mechanism of transport in higher plants
  2. absorption and transport of water and mineral salts
  3. transpiration
  4. translocation

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. compare and contrast various mechanisms of transportation
  2. demonstrate experimentally the flow of materials in plant

INSTRUCTIONAL MATERIALS

  1. Cosine
  2. a young herbaceous plant
  3. beaker
  4. blade glass slide
  5. light microscope

TEACHER ACTIVITIES

The teacher guides learners to set up an experiment showing the absorption of water in higher plants 

LEARNERS ACTIVITIES

Learners observe the experiment and make inferences

WEEK 6

TOPIC

Respiratory System

CONTENT

  1. types and structures of the respiratory system ( body surface, gills, trachea systems, lungs
  2. characteristics of the respiratory surface.
  3. Mechanism of respiratory
  4. Lower animals ( amoeba, paramecium, etc.)
  5. Higher animals (toad, fish, man, etc.) Plants.

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. Describe the different types of respiratory systems
  2. List the characteristic of a respiratory surface
  3. Draw and label some animals
  4. Explain the various mechanisms of respiration in some animals, e.g. mammals
  5. Describe the mechanism of the exchange of gases through the stomata of plants.

INSTRUCTIONAL MATERIALS

  1. Prepared slide
  2. Gills of tilapia,
  3. Chalkboard, relevant diagram/chart
  4. Microscope
  5. Cellophane tubing to make models of stomata

TEACHER ACTIVITIES

  1. Teacher mounts prepared slides showing respiratory organs of earthworm, tilapia, toad, grasshopper, and rat
  2. Display the gills removed from a dead tilapia for learners to observe the various structures
  3. Discusses respiratory movement in higher and lower animals and in plants

LEARNERS ACTIVITIES

  1. Learners observe the respiratory organs of the various animals
  2. Observe the gill rackers, gill arc and gill filaments, and raw
  3. Makes note of the respiratory mechanism
  4. Observe and record their observation

WEEK 7

TOPIC

Excretory System

CONTENT

  1. Excretory systems.
  2. Definition of excretion
  3. Structure of excretion in a living organism
  4. Waste products of metabolism
  5. Forms in which waste products are excreted.

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. Define excretion
  2. Identify and describe different types of excretory systems in plants and animals
  3. Explain the mechanism of some of the excretory organs and relate structure to functions 

INSTRUCTIONAL MATERIALS

  1. Charts or diagrams of the nephron
  2. Dissected cockroach showing Malpighian tubules, dissected rat and kidney of the sheep
  3. Dicotyledonous leaf glass slides and microscope

TEACHER ACTIVITIES

  1. Teachers discuss the various excretory system with the learners
  2. Ask the learner to observe
  3. Malpighian tubules in a dissected cockroach
  4. Excretory system in dissected rat
  5. The internal structure of a dissected kidney of a sheep or pig
  6. Display charts of the nephron to learners, lead them to identify the different parts, and related the identified parts to the functions they perform

LEARNERS ACTIVITIES

  1. Learners to take part in the discussion
  2. Observe and draw the Malpighian tubules, the excretory system of the rat, and the internal structure of the kidney of a sheep or pig
  3. Relate parts identified to functions
  4. Observe the slide, record the observations and make a labeled diagram of the guard cells and the stomata

WEEK 8

TOPIC

Nutrient Cycling In Nature

CONTENT

  1. Carbon and oxygen cycles.
  2. The carbon cycle definition
  3. The process of carbon cycling
  4. The importance of the carbon cycle for life
  5. The oxygen cycle 
  6. The process of oxygen cycling
  7. The importance of oxygen to the living organism
  8. The carbon-oxygen balance
  9. The water cycle
  10. The process of water cycling

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. Describe how carbon circulates nature
  2. Draw the carbon cycle in detail
  3. State the importance of the carbon cycle to life
  4. Recognize the delicate balance between carbon and oxygen
  5. Describe the played by plants and animals in the water cycle
  6. Draw the water cycle

INSTRUCTIONAL MATERIALS

  1. Chart showing carbon cycle
  2. Beaker, test tube, green plant  (Elodea ) filter funnel, water slides, mirrors, windows louvers

TEACHER ACTIVITIES

  1. The teacher leads the learners to list the carbon of carbon (iv) oxide
  2. The teacher leads the learner to perform an experiment to show the absorption of carbon (iv) oxide and release of oxygen during photosynthesis and release of oxygen during photosynthesis
  3. The teacher demonstrated the experiment that shows the presence of water in expired air
  4. The teacher discusses the water cycle with a well-drawn chart

LEARNERS ACTIVITIES

  1. Learners lists the source of carbon (iv) oxide
  2. Draw the carbon cycle
  3. Learners observe the experiment and describe the conclusion of water in expired air
  4. Learners draw the water cycle.

WEEK 9

TOPIC

Nutrient Cycling In Nature

CONTENT

  1. The nitrogen cycle
  2. Importance of nitrogen to plants and animals
  3. The process of nitrogen cycling
  4. Decomposition in nature
  5. Macro decomposer
  6. Role of decomposed

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. Describe with the aid of a diagram the role of nitrogen in plants and animals
  2. State the process of nitrogen cycling
  3. State that energy can be obtained by decomposing substances
  4. Identify the gases produced during the decay

INSTRUCTIONAL MATERIALS

  1. Chart showing the nitrogen cycle
  2. Decaying materials such as meat broth, fish, boiled rice, conical flask, and stopper
  3. Vacuum flask, boiled beans

TEACHER ACTIVITIES

  1. The teacher explains the nitrogen cycle and its importance with the aid of a well-drawn chart
  2. Teacher mounts experiment to show that
  3. Gases like carbon(iv) oxide ammonia are released during decomposition
  4. Heat energy is released during decomposition

LEARNERS ACTIVITIES

  1. Learners draw the nitrogen cycle
  2. Learners observe the results and record their observations
  3. Learners identified the gases released

WEEK 10

TOPIC

Ecological Management

CONTENT

  1. Types of association symbiosis, parasitism, predation mutualism, commensalisms
  2. Features of biological importance possessed by organisms of an association

BEHAVIORAL OBJECTIVES

Learners should be able to

  1. Define symbiosis parasitism, predating mutualism
  2. Identify beneficial, harmful, and neutral forms of association among organisms
  3. Give examples of each association

INSTRUCTIONAL MATERIALS

  1. Root nodules
  2. Ascaris
  3. ticks

TEACHER ACTIVITIES

  1. The teacher provides specimens of root nodules for symbiosis and Ascaris for parasitism
  2. The teacher asks the learners to collect ticks from cows or dog

LEARNERS ACTIVITIES

  1. Learners study the root nodule and the Ascaris and record their characteristics and feature
  2. Learners collect ticks from cows or dogs.

WEEK 11

TOPIC

Tolerance

CONTENT

  1. definition of tolerance
  2. concepts of minimum and maximum range to tolerance
  3. geographic range graph illustrating maximums and minimum range of tolerance

BEHAVIORAL OBJECTIVES

Learners should be able

  1. define tolerance
  2. state, why living things possess, arrange of tolerance of environmental factors
  3. list the abiotic factors that impose tolerance organism
  4. depict with a graph

INSTRUCTIONAL MATERIALS

  1. tilapia fin, salt, water, beakers
  2. a chart should the geographic range graph

TEACHER ACTIVITIES

  1. teacher guides learners to perform experiments should limit of tolerance of tilapia
  2. teacher draws a typical tolerance range graph

LEARNERS ACTIVITIES

  1. learners subject tilapia fish to different concentrations of salt solution and record their observation of the rate of operations
  2. learners study the graph

WEEK 12

Revision

WEEK 13

Examination

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