Lesson Notes By Weeks and Term - Junior Secondary School 2

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  4. Asexual propagation

Week: 6

Class: Junior Secondary School 2

Term: 1st Term

Age: 13 years

Duration: 40 minutes of 2 periods

Date:

Subject: Agriculture

Topic:         Sexual propagation

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Explain the meaning of sexual propagation
  2. Highlight the advantages and disadvantages of sexual propagation

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher revises the previous lesson on asexual propagation

Students pay attention

STEP 2

EXPLANATION

The teacher introduces the topic by explaining the meaning of sexual propagation

She states the advantages of sexual propagation

 

Students pay attention and participates

STEP 3

DEMONSTRATION

She then explains the disadvantages of sexual propagation

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

SEXUAL PROPAGATION

Sexual propagation takes place when plants are raised from seeds which

have been formed as a result of the fusion of the male and female

gametes. Examples of crops propagated by seeds are oranges, maize,

beans, okro, mangoes, groundnut etc

ADVANTAGES OF SEXUAL PROPAGATION

  1. It is a sure method of crop improvement since cross pollination results in

crop variability

  1. seeds are small, convenient to handle, store, transport, procure and sow
  2. it is a less expensive method of propagation
  3. increase in plant population can easily be achieved
  4. offspring of self-pollination are like the parents

 

DISADVANTAGES OF SEXUAL PROPAGATION

  1. few seeds may be produced
  2. seeds may not germinate properly
  3. they take longer time to mature and produce fruits
  4. some seeds do not germinate easily due to dormancy
  5. it reduces the quantity for consumption
  6. growth, maturity and yield of plants from seeds are not always uniform.

 

EVALUATION:    1. Explain the meaning of sexual propagation

  1. State the advantages of sexual propagation
  2. State the disadvantages of sexual propagation

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively