Volume
Finding volume by packing cubes and counting them layer by layer. Read one part at a time and tap “I know this”. Then test yourself in the quiz.
Know it already? Jump straight to the quiz
Volume
Volume is the space a 3D object takes up. We find it by packing and counting cubes.
- Count the cubes in the bottom layer: 4 cubes long and 3 cubes wide = 12 cubes.
- Count how many layers there are: 2 layers.
- Volume = 12 + 12 = 24 cubes.
Don’t forget the hidden cubes at the back and underneath: count layer by layer.
- If each cube is 1 cm × 1 cm × 1 cm, it is 1 cm³ (one cubic centimetre). The box above has a volume of 24 cm³.
- 1 cm³ holds exactly 1 ml of water.
Remember this and test yourself
- Volume = space an object takes up.
- Count the cubes layer by layer.
- Don’t forget hidden cubes.
- A cube of 1 cm × 1 cm × 1 cm = 1 cm³.
Write these points in your book. Read them again the night before the test.
Count one layer, then count the layers.
Important words
First say the answer yourself, then turn the card over.
Match column A to column B
Tap a word in column A, then its meaning in column B. You can also start in column B.
Now the real quiz!
The quiz has many more questions on this topic. Every question shows straight away whether you are right and explains why.
Take the quiz: Volume- Let your child work the examples on paper and explain them to you.
- The ticks (“I know this”) are saved on this device only. We never ask for names or emails.
Follows CAPS for Grade 5 Mathematics. Always check your teacher’s notes and textbook too.