Lesson Notes By Weeks and Term - Junior Secondary School 1

Week: 2

Class: Junior Secondary School 1

Term: 3^rd Term

Age: 12 years

Duration: 40 minutes of 2 periods

Date:

Subject: Agriculture

Topic:-       Pests

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

1. Classify the insects pests based on their mouth parts

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 pests	Students pay attention
STEP 2 EXPLANATION	She explains the meaning of pests	Students pay attention and participates
STEP 3 DEMONSTRATION	She classifies the insect pests based on their mouth parts	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

INSECT PESTS

Insects are the most serious pests of crops both in the farm and in storage. They are classified thus;

1. piercing and sucking insects: The mandibles and maxillae form piercing stylets enclosed in a groove on the surface of a long thin labium. Some examples of piercing and sucking insects are butterfly, cotton stainer, sphids, mealybugs etc

Damage on crops

1. causes loss of cell sap
2. causes stunted and distorted growth
3. attacks flowers and reduces seed production
4. serves as vectors of viral diseases
5. injects toxic saliva into the plants causing lesions and secondary infections like fungal attack

 

2. Biting and chewing insects: these insects bite and chew leaves and other plant tissues such as seeds, fruits and flowers. Some examples of biting and chewing insects are crickets, cockroaches, termites, locusts etc

 

3. Boring insects: these insects eat up the grains reducing them to powdery residues. Some examples are rice weevil, bean weevil, maize weevil etc

 

4. Nematodes: these are cylindrical non-segmented worms and they live mainly inside the soil and in plant roots.

Damage on crops

1. they eat up the leaf reducing photosynthetic surface and yield
2. causes stunted growth
3. destroys flowers preventing fertilization
4. spread diseases or create openings for disease organisms

 

EVALUATION:    1. Classify insects based on their mouth parts

2. state the damage on crops made by the insects

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively