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Nelson Education > School > Mathematics K-8 > Math Focus > Grade 8 > Teacher Centre > Surf for More Math > Chapter 1 - Lesson 4

Surf for More Math


Lesson 4: Estimating Square Roots

Use these interactive activities to encourage students to have fun on the Web while learning about number relationships. Students can try these activities on their own or in pairs.

Estimate the square root of a numbers that are not perfect squares.

Builds Upon
Student Book pages 16–20


Instructions for Use

Square Root Calculator will find the square root of the number you enter.

Enter a number that is not a perfect square. Before you click “Calculate” estimate what you think is the square root of that number. Is your estimated answer close to the actual answer?


Relationsip Between Square and Square Roots allows students to review how to find the square root and perfect square of a number.

Follow the instructions and explore squares and square roots. You will see a step-by-step process for squaring, and two examples for how to estimate the square root.