Class: Primary 5
Term: 2nd Term
Subject: Pre-Vocational Studies
Curriculum Theme: Agricultural Science
Previous Lesson: Cultural Control Of Crop Weeds, Pests And Diseases
Topic: Chemical Control of Crop Weeds,Pests,and Diseases
Content/Learning Area: Chemical Control of Crop Weeds,Pests,and Diseases
Time Allocation: 40 minutes

Performance Objectives

By the end of the lesson,pupils should be able too:

cognitive Domain: Explain the meaning and purpose of chemical control in agriculture.
affective Domain: Appreciate the importance of safe chemical use in farming.
Psychomotor Domain: Demonstrate how to prepare a simple pesticide solution (using water and a teacher-guided pesticide).
Social Domain: Collaborate in a group activity to identify examples of chemicals used in agriculture.

Reference Materials

The following resources were used in planning this lesson:

9–Years Basic Education Curriculum, Abuja
Educational Resource Center Scheme of Work
NAPPS National Unified Scheme of Work
online Information from: sciencedirect.com – Chemical Control
Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials:

Sample pesticide container (empty and clean).
A picture/chart showing pests and weeds.
A hand sprayer for practical demonstration.
A measuring cup or small container.

Rationale for the Lesson

This lesson helps pupils understand how chemicals can effectively control crop weeds, pests, and diseases. It is indeed crucial for lasting agriculture, ensuring improved crop yield and food security.

Prerequisite/Previous Knowledge

pupils have learned about cultural control methods and can identify common crop weeds, pests, and diseases.

Lesson Content

Chemical Control of Crop Weeds, Pests, and Diseases

Chemical control involves using pesticides, herbicides, or fungicides to manage agricultural pests and diseases.

Examples of Chemicals:

Chemicals are used to control various agricultural pests and diseases. These include:

1. Pesticides: For insects and other pests.
2. Herbicides: For killing weeds.
3. Fungicides: For preventing or controlling fungal diseases.
4. Insecticides: specifically target insects that harm crops.
5. Acaricides: Used to control mites and ticks that can damage plants.

Safety Measures:

When using chemicals in agriculture, it is important to follow safety measures to protect yourself and the habitat. These include:

1. Always read the label on the chemical container.
2. Wear protective clothing when applying chemicals.
3. Store chemicals out of reach of children.
4. Ensure proper ventilation when mixing or applying chemicals.
5.Avoid spraying chemicals on windy days to prevent drift.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Interactive Questioning, Lecture, Demonstration, Guided Practice, Hands-On Activity, Collaboration, Group Discussion, Writing, Guided Learning, Questioning, Interactive Assessment, Summary, Recap.

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction (Set Induction)

Time: 5 mins
Teaching Skill: Set Induction
Teacher’s Activity: Asks pupils to recall the cultural control of pests and diseases from the previous lesson.
Pupils’ Activity: Respond and share answers.

Step 2: explanation of Chemical Control

Time: 10 mins
Teaching Skill: Explanation
Teacher’s Activity: Explains what chemical control means and how it is used in farms. Shows a clean pesticide container and sprayer.
Pupils’ Activity: Listen, observe, and take notes.

Step 3: Practical Demonstration

time: 10 mins
Teaching Skill: Demonstration
Teacher’s Activity: Demonstrates mixing water with a pesticide (pre-steadfast safe demonstration). explains safety measures.Pupils’ Activity: Observe and participate in measuring and mixing.

Step 4: Group Activity

Time: 5 mins
Teaching Skill: Collaboration
Teacher’s Activity: Divides pupils into groups to list 3 common pesticides they know or have seen.Pupils’ Activity: Work in groups and share findings.

Step 5: Note-Taking

Time: 5 mins
Teaching skill: Writing
Teacher’s Activity: Dictates a concise note for pupils to copy.
Pupils’ Activity: Copy the note into their books.

Step 6: Evaluation/Review

Time: 3 mins
Teaching Skill: Questioning
Teacher’s Activity: Asks questions to evaluate their understanding.
Pupils’ Activity: Answer questions orally.

Objective-aligned checks:

Explain the meaning and purpose of chemical control in agriculture.
Demonstrate how to prepare a simple pesticide solution (using water and a teacher-guided pesticide).
Collaborate in a group activity to identify examples of chemicals used in agriculture.

Step 7: Conclusion

Time: 2 mins
Teaching skill: Summary
teacher’s Activity: Summarizes the lesson and emphasizes safety in chemical use.
pupils’ Activity: Listen attentively.

Lesson Keywords

Chemical Control – Using chemicals to manage pests and diseases in agriculture.
Pesticides – Chemicals used to kill or control pests.
Herbicides – Chemicals used to kill or control weeds.
Fungicides – Chemicals used to prevent or control fungal diseases.
Safety Measures – precautions taken to ensure safe handling and use of chemicals.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Define chemical control in agriculture.
Mention two examples of chemicals used for pest control.
State one safety rule to follow when using chemicals on a farm.
Explain why it is important to control crop pests and weeds.
Demonstrate (or describe) how to mix a simple pesticide solution.

Assignment/Homework

List five common pests or weeds found in local farms.
Research and write down three safety precautions to take when using pesticides.
Ask a farmer about the types of chemicals they use and their purposes.

Differentiation

for slower learners: Provide simplified explanations and one-on-one assistance during the practical demonstration.
For advanced learners: Challenge them to research different types of pesticides and their specific uses.
For visual/auditory/kinesthetic learners: Use visual aids, verbal explanations, and hands-on activities to cater to different learning styles.

Note for Teachers

This lesson introduces pupils to the concept of chemical control in farming. Ensure demonstrations are age-appropriate and follow safety guidelines strictly. Emphasize the importance of responsible chemical use. Happy teaching!