DANGERS INVOLVED IN EXCESSIVE USE OF CHEMICALS

TITLE: NOTE OF LESSON ON AGRICULTURAL SCIENCE

SUBJECT: AGRICULTURAL SCIENCE

THEME: PROCESSES OF AGRICULTURAL PRODUCTION

TERM: FIRST TERM

WEEK: WEEK 5

CLASS: PRIMARY 4

NAME OF TEACHER:

DATE:          

AGE OF STUDENTS:

CLASS COMPOSITION: Slow and fast learners.

PERIOD:

DURATION: 40 MINUTES

TOPIC:  DANGERS INVOLVED IN EXCESSIVE USE OF CHEMICALS

PERFORMANCE OBJECTIVES

At the end of this Module, Pupils should be able to know about:

  • Dangers involved in excessive use of chemicals.

TEACHING AND LEARNING MATERIALS

  • Whiteboard/ Chalkboard
  • Explanatory posters/pictures
  • Explanatory videos

TEACHING AND LEARNING METHOD

  • Explanation
  • Discussion
  • Questions and Answers.

ENTRY BEHAVIOUR/ PREVIOUS KNOWLEDGE: the students are familiar with safety measures in applying chemicals.

REFERENCE MATERIALS

  • Universal Basic Education Curriculum.
  • NERDC Basic Education Curriculum for Primary Schools.
  • Unified Schemes of Work Primary Schools four Agricultural Science (MIDDLE BASIC)
  • Internet.
  • Lagos State Agricultural Science Scheme of Work
  • Edudelight Agricultural Science for Primary Schools.

WORD FILE: chemicals, nozzle.

                        MODULE CONTENT

SAFETY MEASURES IN APPLYING CHEMICALS

  1. Avoid using bare hand when mixing chemicals.
  2. Make use of back pack with your mouth and face covered.
  3. Put on protective clothing like gloves.
  4. Don’t use your mouth or teeth to open a chemical bottle.
  5. Do not blow the nozzle of the sprayer when it is blocked.
  6. Avoid eating, smoking or drinking when working with pesticides.
  7. Do not allow the chemical to come in contacts with your skin.
  8. Observe the direction of the wind when spraying.
  9. Wash your hands with soap and water after the applying chemicals on plants.
  10. Take a full baths after applying chemicals on plants.
  11. If you don’t feel well after working with chemicals, see a doctor immediately.

DANGERS INVOLVED IN EXCESSIVE USE OF CHEMICALS

  1. It will change the colour of the crops.
  2. It may kill the crops.
  3. It can destroy the useful living things in the soil like earthworm.
  4. It can be washed away into streams and rivers thereby killing fishes and other living things in the water.
  5. It can lead to air pollution.
  6. It can lead to water pollution.

INSTRUCTIONAL PROCEDURE

  • The Teacher revises the previous lesson (SAFETY MEASURES IN APPLYING CHEMICALS).
  • The Teacher introduces the topic (DANGERS INVOLVED IN EXCESSIVE USE OF CHEMICALS).
  • The Teacher explains the lessons.

LEARNERS ACTIVITIES

  • Learners participate in the class discussion.

EVALUATIVE ACTIVITIES

  • Mention four dangers when chemical is applied on plants excessively.

CONCLUSION: the teacher summarize the lesson.

PREVIOUS LESSON:  MATERIALS NEEDED FOR GROWING CROP

NEXT LESSON: HOW TO RAISE ORNAMENTAL PLANTS (FLOWER PLANTS)

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