The Teacher's Manual, Interactive Mathematics, a textbook that advises primary school teachers how they should teach mathematics, declares: "Traditionally, mathematics tests have questions with 'right' and 'wrong' answers. These tests reinforce the misleading image of mathematics as a subject with unique correct answers.... Poor test scores often lead to students with poor self-images who believe the 'aren't good in math.' " More advice: "Because learning is created in the mind of the learner, it cannot be told to the student by the teacher. Actually, no one can teach mathematics. An effective teacher becomes a facilitator of learning and helps students learn by making connections."

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