Investigating the art and craft of teaching with Justin Reich
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This involves teaching students the meaning of subtraction and how it relates to addition. They should also learn the terminology associated with subtraction, such as minuend, subtrahend, and difference. Basic subtraction facts: Students should learn the basic subtraction facts up to 20, including the fact families (e.g., 4-2=2, 2-4=-2, 2+2=4, 4+(-2)=2).
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