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Core concept: Volume is the amount of space an object occupies.
Volume of objects – 30 minutes
Volume of objects – 30 minutes
Part 1 – Comparing volume
Part 1 – Comparing volume
Display a small object and a large object from the classroom. Brainstorm and record the words students use to describe the 2 objects. Make connections to other measurement such as mass, length and area.
Display a small object and a large object from the classroom. Brainstorm and record the words students use to describe the 2 objects. Make connections to other measurement such as mass, length and area.
Circle or highlight words relating to volume and comparison of size, such as the same, almost the same, equal, small, smaller, large, larger, big, bigger.
Circle or highlight words relating to volume and comparison of size, such as the same, almost the same, equal, small, smaller, large, larger, big, bigger.
Introduce the phrase ‘takes up more space’ to the vocabulary list.
Introduce the phrase ‘takes up more space’ to the vocabulary list.
Display a deflated balloon. Discuss and compare its volume before and after you inflate it.
Display a deflated balloon. Discuss and compare its volume before and after you inflate it.
Activity: Students turn and talk to compare the volume of the animals and people. Ask students to think about their own families, pets, cars and houses and to share their thoughts and reasoning about volume.
Activity: Students turn and talk to compare the volume of the animals and people. Ask students to think about their own families, pets, cars and houses and to share their thoughts and reasoning about volume.
Part 2 – Comparing volume
Part 2 – Comparing volume
Explain that students are to construct an alien using between 10 and 20 blocks.
Explain that students are to construct an alien using between 10 and 20 blocks.
Provide up to 20 interlocking blocks for students to make an alien.
Provide up to 20 interlocking blocks for students to make an alien.
Explain that the volume of the aliens can be compared by counting the number of blocks. Remind students that the blocks must the same size to compare them.
Explain that the volume of the aliens can be compared by counting the number of blocks. Remind students that the blocks must the same size to compare them.
Instruct students to count the number of blocks in their alien. Swap with a peer and check the count.
Instruct students to count the number of blocks in their alien. Swap with a peer and check the count.
Ask:
Ask:
- Who has an alien that looks the same as another? Do they have the same volume?
- Who has an alien that is different to another? Which has the greater volume?
- How can we work out which alien has the greatest/smallest volume?
- If I used different sized blocks, what effect does that have on the volume?
- If an alien is too big for a spaceship, what can you do?
Assessment: photograph of class collection arranged in size (MAO-WM-01, MAE-3DS-02)
Consolidation and meaningful practice: Points of view – 15 minutes
Consolidation and meaningful practice: Points of view – 15 minutes
Select one alien from the class collection. Demonstrate sketching the alien from the front view, drawing individual blocks. Count and record the number of blocks represented in the drawing.
Select one alien from the class collection. Demonstrate sketching the alien from the front view, drawing individual blocks. Count and record the number of blocks represented in the drawing.
Students draw their own alien and record the number of blocks used.
Students draw their own alien and record the number of blocks used.
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