You mean the square root of five and five don't have the same value? Learners estimate the value of irrational roots. As they practice estimating the value, they increase their understanding of roots. The lesson is the fourth in a series of seven dedicated to the understanding of irrational numbers.

Concepts

square roots, estimation, irrational numbers, cube roots

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Provide your classes with a number line that shows perfect roots in place of whole numbers, which they can use to estimate roots

Classroom Considerations

• Review perfect square and cube roots as needed
• Requires Internet access to use the video resource
• The lesson is the fourth in a series of seven dedicated to the understanding of irrational numbers

Pros

• Emphasizes vocabulary throughout the unit
• Uses both square roots and cube roots

Cons

• Does not include real-life examples or context during instruction

Common Core

8.NS.A.2