Approximating square roots - Free Educational videos for Students in k-12


Approximating square roots - By Khan Academy



DESCRIPTION:

Learn how to find the approximate values of square roots. The examples used in this video are √32, √55, and √123. The technique used is to compare the squares of whole numbers to the number we're taking the square root of.

OVERVIEW:

Approximating square roots is a free educational video by Khan Academy.It helps students in grades 8 practice the following standards 8.NS.A.2.

This page not only allows students and teachers view Approximating square roots but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.

1. 8.NS.A.2 : Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., ?^2). For example, by truncating the decimal expansion of ?2 (square root of 2), show that ?2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations..


GRADES:

8


STANDARDS:

8.NS.A.2

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