Plants (Weeds) – Primary 4

 

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY 

SECOND TERM 

WEEK 5

PRIMARY 4

THEME –  LEARNING ABOUT OUR ENVIRONMENT 

 PREVIOUS LESSON – GROWING OF PLANTS – SOIL PREPARATION, PLANTING AND NURTURING OF PLANTS

TOPIC – PLANTS (WEEDS) 

 

PERFORMANCE OBJECTIVES

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –

  1. define and identify weeds.
  2. state the importance of weeds.
  3. list the control measures for weeds.
  4. enumerate ways of protecting the soil and environment against pollution.

 

 

ENTRY BEHAVIOUR

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

  1. School garden
  2. Course book
  3. Rubber gloves
  4. Garden knife
  5. Small hoe.

 

METHOD OF TEACHING – Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

 

REFERENCE MATERIALS

  1. Scheme of Work
  2. 9 – Years Basic Education Curriculum
  3. Course Book
  4. All Relevant Material
  5. Online Information

 

CONTENT OF THE LESSON  

TEACHER’S/PUPIL’S ACTIVITIES 1 – GROUP THE PUPILS AND LEAD THEM TO THE SCHOOL GARDEN OR WITHIN SCHOOL ENVIRONMENT TO PICK SAMPLE OF PLANTS THAT ARE NOT PLANTED 

 

Teacher’s remark – Tell the pupils that these plants grown in an unwanted place and they are called called weeds or unwanted plants. 

 

 

PUPIL’S ACTIVITIES 2 – WHAT IS WEEDS? 

Lead the pupils by asking them different questions that will lead pupils to define weeds as unwanted plants. 

 

Weeds are unwanted plants. Weeds are plants that grow where they are not planted and wanted.

 

Teacher’s remark – Weeds can be grasses, trees, herbs or crops. 

 

TEACHER’S/PUPIL’S ACTIVITIES 3 – DISCUSS WITH THE PUPILS, THE IMPORTANCE OF WEEDS 

Weeds are used –

  1. For feeding animals.
  2. For checking erosion.
  3. Making manure.
  4. For preserving crops.
  5. For medication – herbs.
  6. For firewood.
  7. For building.
  8. For exchange.
  9. Some weeds are useful crops.

 

PUPIL’S ACTIVITIES 4 – HOW CAN WEEDS BE CONTROLLED? 

  1. Cutting
  2. Hand picking or uprooting.
  3. Allow animals to feed on the weeds.

 

Teacher’s remark summary their findings into biological, cultural and chemical controls. 

  • Biological control – This is the used of insects and animals to feed on the weeds. 
  • Cultural control – This involves picking or weeding. 
  • Chemical control – This is the used of chemicals. 

 

TEACHER’S/PUPIL’S ACTIVITIES – DISCUSS WAYS OF PROTECTING THE SOIL AND ENVIRONMENT FROM EROSION

Make laws to protect the soil and environment. Proper public enlightenment campaign on:

  1. Proper waste disposal.
  2. Checking leaching of the soil.
  3. Effects of using chemicals to control weeds.

 

 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Guides and leads the pupils to collect samples of unwanted plants.

Pupil’s Activities – Collect samples of unwanted plants.

3. Tells the pupils that the unwanted plants are called weeds.

Pupil’s Activities – Listen to the teacher’s explanation.

4. Asks the pupils to explain what weeds are.

Pupil’s Activities – Explain the meaning of weeds.

5. Assists the pupils to make a weed album.

Pupil’s Activities – Prepare a weed album.

6. Discusses the importance and control of weeds.

Pupil’s Activities – Participate actively in the class discussion.

7. Leads the pupils to identify ways of protecting the soil and environment from erosion.

Pupil’s Activities – Identify ways of protecting the soil and environment from erosion.

 

CONCLUSION

  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

 

LESSON EVALUATION 

Pupils to:

  1. define and identify of weeds;
  2. state 4 importance of weeds;
  3. list 2 control measures for weeds.

 

 

 

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