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magnitude estimation
magnitude estimation Magnitude estimation is the process of judging or producing the size of a quantity, such as how many items are present or where a number belongs on a number line.
Magnitude estimation is the process of judging or producing the size of a quantity, such as how many items are present or where a number belongs on a number line. In this source, it refers specifically to estimating number magnitude in tasks involving non-symbolic quantities and number line judgments.