Week 11 · Build with cubes
Friday
Freddy's cube game
// Volume: unit cubes, layers and length × width × height
⏱ about 15 min
Friday: Freddy's cube game
Freddy the Frog hops onto a giant lily pad stacked with toy cubes.
"Ribbit! Welcome to the cube game," he says, straightening his bow tie.
"Each round, you find how much space my cube towers fill."
Hazel the Hedgehog brings her notebook and pencil.
Bennie the Bear reminds everyone, "One layer first, then times the layers."
"And add the volumes when two boxes sit together," says Hazel.
Freddy grins. "Let the game begin, trail friends!"
Game 1: Count and multiply
FIND THE VOLUME
- Read the question.
- Tap your answer.
How many unit cubes make this box?
How many unit cubes make this box?A box is 9 by 4 by 2 centimeters. What is its volume in cubic centimeters?
A box is 5 by 5 by 5 inches. What is its volume in cubic inches?
Game 2: Missing sides and bases
FIND THE MISSING NUMBER
- Read the question.
- Tap your answer.
5 × 4 × ? = 120
8 × 3 × ? = 48
The base of a box is 25 square feet. It is 4 feet tall. What is its volume in cubic feet?
Game 3: Two boxes
ADD THE VOLUMES
- Read the question.
- Tap your answer.
(4 × 3 × 2) + (2 × 3 × 2) = ?
(7 × 2 × 2) + (3 × 2 × 1) = ?
Freddy builds two cube towers: 5 × 5 × 2 and 5 × 2 × 2. How many cubes in all?
Game 4: Earlier weeks
REMEMBER THESE?
- Read the question.
- Tap your answer.
3/4 × 16 = ?
2 ÷ 1/4 = ?
3.5 meters = ? centimeters
2 feet = ? inches
ORDER THE BOXES BY VOLUME
- Find each volume.
- Put them from least to greatest.
11st
22nd
33rd
44th
Multiply one step at a time.
| Sentence | True or false? |
|---|---|
| 3 × 3 × 3 = 27 | ? |
| 5 × 4 × 6 = 100 | ? |
| (4 × 3 × 2) + (2 × 3 × 2) = 36 | ? |
| 25 × 4 = 100 | ? |
WHY THIS EXERCISE5 × 4 × 6 is 20 × 6 = 120.
Try it
Stack blocks to build a tower 2 long, 2 deep and 4 tall.
Find its volume in blocks.
Now build a tower with the same volume but a different shape.
Find its volume in blocks.
Now build a tower with the same volume but a different shape.
Ribbit! Tomorrow is a Number Hunt for boxes at home.