Lesson Notes By Weeks and Term v4 - SHS 2

Lesson Video

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Performance objectives

• Define and differentiate between volume and capacity.
• Solve problems involving volume and capacity.
• Calculate the volume of common shapes.
• Apply these skills to real-life Ghanaian scenarios.

Lesson summary

This lesson focuses on understanding and applying the concepts of volume and capacity in real-world situations. In Ghana, we encounter these measurements daily—when buying fuel in litres, water in gallons for our homes (e.g., in a Polytank), cooking oil, or even medicines. Understanding the difference between volume and capacity, and being able to convert between the units used in Ghana (like litres) and those used internationally (like gallons), is a crucial skill for both academic success and everyday life. This lesson will equip learners with the ability to solve practical problems involving these measurements.

Lesson notes

Part 1: The Difference Between Volume and Capacity

This is a subtle but important distinction. We will use the Talk for Learning strategy to explore this.

Teacher: Imagine I have a 1.5-litre bottle of Bel-Aqua water, but it is only half full. The volume of the water is the actual space the water itself is occupying inside the bottle. In this case, it would be 0.75 litres. Volume is the amount of 3D space a substance takes up. The capacity of the bottle is the total amount of liquid the bottle *can hold* when it is completely full. The capacity of the bottle is 1.5 litres. Capacity is the maximum volume a container can contain.

(Analogy for Core Values): Just like volume and capacity are two closely related but different ideas, people in our communities are all different. We have different backgrounds, talents, and ways of thinking. We must appreciate these differences and respect everyone, understanding that each person has their own unique value, just as both volume and capacity have their specific meanings.

Evaluation guide

• Solve problems that involve SI and imperial units in volume and capacity measurements.
• Using Talk for Learning strategy, engage learners to explain, using examples, the difference
• between volume and capacity.
• Bring learners’ attention to the fact that as differences exist between volume and capacity , which are