Square roots arise in many instances in algebra classrooms. Take, for example, a Mathematics Assessment Resource Service (MARS) task entitled “Sorting Equations and Identities”(www.map.mathshell.org).This task asks students to identify whether an equation is always, sometimes, or never true. One example (i.e., card 10), asks students to categorize the equation (x – 6)2 = (6 – x)2.
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