LET’S TRY ONE
What is the cube root of 8?
2
2 × 2 × 2 = 8, so the cube root is 2.
Learning steps & teaching tips
Connect a perfect cube with its whole-number cube root.
- Use known cubes or check a proposed root by multiplying it three times.
- Work through the example and explain why each operation is used.
- Estimate or use another method to check the result before choosing.
Try it together
Work with a partner: solve one example, explain the method, then change one number and predict what changes.
Use known cubes or check a proposed root by multiplying it three times.