Estimating Square Roots by Comparing to Perfect Squares

This lesson teaches how to estimate the value of square roots by comparing them to perfect squares. It explains the concept of irrational numbers and demonstrates the estimation process using the square root of 32 as an example. The lesson covers finding perfect squares on either side of the target number, using a number line for refinement, and alternative estimation methods. Practical applications of these estimation techniques are also discussed, emphasizing the importance of understanding square roots without relying solely on calculators.

What are the perfect squares surrounding the square root of 32, and how do they help in estimation?

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Describe how to use a number line to estimate the square root of 32.

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