Forces and Movement · B4 Science

Lesson notes

Learning Objectives

Indicator: B4.4.3.1.1 - Demonstrate understanding of elastic and compressional forces and their everyday applications

By the end of the lesson, learners can:

Define elastic force and compressional force in their own words using simple everyday language.
Demonstrate elastic force by stretching a rubber band and compressional force by squeezing a sponge or spring.
Classify given objects and actions in their environment as examples of either elastic force or compressional force.
Identify at least two everyday applications of elastic force and two everyday applications of compressional force in Ghanaian life.
Predict what happens when an elastic material is stretched too far beyond its limit.

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Curriculum details

Strand: Forces and Energy (Strand 4)
Sub-strand: Forces and Movement (4.3)
Content standard: B4.4.3.1 - Know that movement is caused by applied forces due to the release of stored energy
Indicator: B4.4.3.1.1 - Demonstrate understanding of elastic and compressional forces and their everyday applications
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.
Curriculum reference: Science Curriculum (Basic 4-6), 2019, p. 12
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Learners bring catapults, rubber bands, springs and bicycle pumps to class.
- Guide learners to demonstrate different effects of forces, e.g. by kicking a ball in different directions, pushing a table, crumpling a piece of paper or stopping a moving toy.
- Engage learners in activities to demonstrate elastic and compression forces using the materials brought to class.
- Learners to discuss how elastic and compressional forces are applied in everyday life.