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Science · B7

Term 3 · Week 7 · 2.00 credits · GHS 1.00

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Lesson Note - Science

LA PRESBY A & B JHS

Weekly Lesson Plan

JHS 1 (B7) · Term 3

Science

Lesson 1 of 2

Week Ending

Friday, 05 Jun 2026 Backdated

Week & Term

Week 7 · Term 3

Class Teacher

WONDER MAKAFUI TOKLO

Subject

Science

Class

JHS 1 (B7)

Class Size

—

Duration

50 mins

Week No.

Week 7

Content Standard & Indicators

B7.4.4.2.3 B7.4.5.1.1

Content Standard 1 B7.4.4.2.3

Recognise some simple machines, and show understanding of their efficiency in doing work. 1. Discuss what magnets are and describe the types of magnets that

Indicator 1

Know work input, and output and efficiency as they apply to machines.

Content Standard 2 B7.4.5.1.1

Demonstrate knowledge and skills in handling and maintenance of basic and simple agricultural tools

Indicator 2

Explain the basic rules in handling and maintaining simple agricultural tools.

Performance Indicator

Learners will explain the terms work input, work output, and efficiency using examples from simple machines

Core Competencies

Key Words

Teaching / Learning Resources (TLR)

References

Lesson Activities by Day

Date	Phase 1: Starter (7 mins) Preparing the brain	Phase 2: Main (16 mins) New learning + assessment	Resources	Phase 3: Plenary (5 mins) Reflection + exercise
Mon 01 Jun 2026	1Recall prior knowledge of simple machines and the effort needed to move objects 2Show learners a pulley system on the chart diagram and ask: What machine is this, and why do we use it?	DEFINING WORK INPUT, WORK OUTPUT, AND EFFICIENCY 1Write on the board: Work Input = the effort (force) we put in; Work Output = the useful work the machine does. Use the science kit specimens (pulleys/levers) to demonstrate: push down on a lever to lift a load — the push is input, the lifting is output 2Learners open their exercise books and copy the definitions, then draw a simple diagram of a lever labelling where input and output happen 3Ask: If Kofi pushes a lever with 10 units of force and lifts a load with 8 units of force, where did 2 units go? (Answer: lost to friction). Introduce: Efficiency = (Work Output ÷ Work Input) × 100%. Use Textbook during the task	1Textbook 2Science kit/specimens (pulleys and levers) 3Chart/diagram showing simple machines 4Exercise book	1Select a learner to stand and mime using a simple machine (e.g. grinding corn with a mortar and pestle); the class shouts out which is input and which is output 2Learners compare answers with a partner using the textbook definition of efficiency and check if they understand why no machine is 100% efficient Exercise 1Ama uses a pulley to lift a bucket of water with 50 N of effort and the bucket rises with a useful force of 40 N. Calculate the efficiency of this pulley system in their exercise books.
Tue 02 Jun 2026	1Recall the basic rules for handling and maintaining simple agricultural tools 2Display images of a hoe, cutlass, rake, and shovel on the chart. Ask: Which of these tools have you seen a farmer use in Makola area or at your family farm, and what happens if they are left in the rain?	BASIC RULES FOR HANDLING AND MAINTAINING FARM TOOLS 1Use the textbook and Science kit specimens (hoe, cutlass, rake examples) to demonstrate: show learners the hoe, explain three handling rules: (1) grip the handle firmly when cutting, (2) never leave tools in water or rain, (3) check the tool for damage before use. Write these three rules on the board 2Learners copy the three rules into exercise books and draw a simple picture of one tool being handled safely 3Ask: Why does Kwame's father clean his cutlass after weeding? Discuss with learners that removing soil and moisture prevents rust and extends tool life. Reference the chart showing rust damage on an old blade	1Textbook 2Science kit/specimens (hoe, cutlass, rake, shovel examples) 3Chart/diagram showing rust damage and proper storage 4Exercise book	1Learners stand and mime the correct way to carry a hoe to the farm, then mime what NOT to do (dragging it, leaving it wet) 2One volunteer from the class reads aloud one rule from the board while others repeat it three times chorally Exercise 1Name two rules for handling a farm tool safely and one rule for maintaining it after use in their exercise books.

Class Teacher

WONDER MAKAFUI TOKLO

Head Teacher

Signature & Date

SISO / Circuit Supervisor

Signature & Date

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