Forces and Movement · B6 Science

Lesson notes

Learning Objectives

Indicator: B6.4.3.2.1 - Identify levers, pulleys, inclined planes as classes of simple machines and cite some common examples

By the end of the lesson, learners can:

Define simple machines as tools that make work easier by changing the size or direction of a force.
Identify and classify at least five common tools as levers, pulleys, or inclined planes.
Name at least three everyday examples of each class of simple machine found in their homes, schools, or communities.
Demonstrate the proper and safe way to use at least two simple machines.
Work in groups to sort picture cards of simple machines into the correct class and justify their choices.

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Curriculum details

Strand: Forces and Energy (Strand 4)
Sub-strand: Forces and Movement (4.3)
Content standard: B6.4.3.2 - Recognise some simple machines used for making work easier, analyse their advantages and know their uses
Indicator: B6.4.3.2.1 - Identify levers, pulleys, inclined planes as classes of simple machines and cite some common examples
Suggested placement: Term 3, Week 4 (Week 28 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

content standard text - p.43: the standard cell is coded "B4.4.3.2", a B4 grade letter inside the B6 section; the code here follows the indicator's own code B6.4.3.2.1
Curriculum reference: Science Curriculum (Basic 4-6), 2019, p. 43
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Lead learners to visit various workplaces where levers, pulleys or inclined planes are used in their work or show pictures of different classes of simple machines.
- Learners talk about their experiences on the visit.
- Learners are shown examples of simple machines (screw drivers, pliers, scissors, wheel barrow, shovel, hammer, spanners, axe, rake, cutlass, hoe, mattock, crowbar, claw hammer, screws, wooden board, to identify and classify them as levers, pulleys or inclined planes).
- Learners demonstrate proper ways of using simple machines.
Project: Design and Make Simple Machines Learners design and make simple machine of their choice from suitable materials such as bamboo, wood, cardboard, plastics, paper and straws.