Lesson Notes By Weeks and Term - Junior Secondary School 2

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  4. dvantages and disadvantages of asexual propagatio

Week: 5

Class: Junior Secondary School 2

Term: 1st Term

Age: 13 years

Duration: 40 minutes of 2 periods

Date:

Subject: Agriculture

Topic:         Advantages and Disadvantages of asexual propagation

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

  1. Highlight the advantages and disadvantages of asexual 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

She states the advantages of asexual propagation

 

Students pay attention and participates

STEP 3

DEMONSTRATION

She then explains the disadvantages of asexual 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

ADVANTAGES OF ASEXUAL PROPAGATION

  1. they can resist diseases and pests more
  2. crops can be produced vegetatively
  3. new plants mature faster under favorable conditions
  4. they are more resistant to adverse soil and weather conditions
  5. crops with desired characteristics are produced
  6. one variety of crop can be produced indefinitely without changing its

genetic property

 

DISADVANTAGES OF ASEXUAL PROPAGATION

  1. it is not easily stored
  2. vegetative organs are bulky to carry
  3. the same kind of diseases of stock can manifest in offspring quickly
  4. viral diseases can be transmitted as a result of carelessness in

propagation

  1. crop improvement cannot be achieved because genetic constitution of

the plant is not altered

 

EVALUATION:    1. State the advantages of asexual propagation

  1. State the disadvantages of asexual propagation

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively