Curated OER
Squares and Square Roots
Students find patterns relating the lengths of the sides of squares to their areas. In this squares and square roots lesson, students draw squares and find their areas. They estimate the sides of square when given the area. Students use...
Government of Alberta
Learn Alberta: Math Interactives: Exploring Square Roots (Object Interactive)
Explore a set of perfect squares, as well as their square roots using this highly interactive math resource. In addition, students will get to look at estimates of the square roots of non-perfect squares. Printable activities, solutions,...
McGraw Hill
Glencoe: Self Check Quizzes 2 Estimating Square Roots
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of estimating square roots. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
Texas Instruments
Texas Instruments: Estimating Square Roots
By estimating the value of a square root students will get practice in identifying perfect squares, in checking for reasonableness of an answer, and in mental math.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Estimating Square Roots
This site gives a short interactive quiz which allows students to self-assess their understanding of estimating square roots.
Illustrative Mathematics
Illustrative Mathematics: 8.ns Estimating Square Roots
This task asks students to estimate the square root of 800 without using a calculator. To do it, they must examine perfect squares that are higher and lower than 800. Aligns with 8.NS.A.