Comparison Estimator

Grade Levels

3rd Grade, 4th Grade

Course, Subject

Mathematics

Related Academic Standards

M03.A-T.1.1.1 M03.A-T.1.1.1

Round two- and three-digit whole numbers to the nearest ten or hundred, respectively.

M03.D-M.1.2.3 M03.D-M.1.2.3

Use a ruler to measure lengths to the nearest quarter inch or centimeter.

M04.A-T.2.1.4 M04.A-T.2.1.4

Estimate the answer to addition, subtraction, and multiplication problems using whole numbers through six digits (for multiplication, no more than 2 digits × 1 digit, excluding powers of 10).

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Virtual Manipulative

Click here for this interactive resource.

Description

This interactive web-based resource allows the user to understand the estimation process by comparing two objects. Students can choose to compare the length of two lines, the area of two shapes, or the number of objects on each side.

Estimation is a useful tool to get a general idea about a quantity or a size when an exact answer is not necessary.

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Content Collections

Content Provider

The Shodor Foundation is a non-profit research and education organization dedicated to the advancement of science and math education, specifically through the use of modeling and simulation technologies. For more information, please visit www.shodor.org.

Comparison Estimator