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If I could wish for something that would really help in implementing CCSS-M, it would be a handbook of “Concepts to Reference.” It would integrate the ideas from Nixthetricks.com with foundational concepts in the Standards. It would guide us in how to answer students’ questions by quickly reinforcing number sense, instead of re-teaching entire lessons or resorting to memorized tricks. For example, given 2/7 + 3/7, “Do I keep the denominators the same or do I add them?” “Answer: What was added together to get 2/7? (1/7 + 1/7). What was added together to get 3/7 (1/7 + 1/7 + 1/7)…” Example 2, a student writes 1/k instead of k for y=kx. Teacher, “Make a table of your number pairs and see if we can figure it out from there.” Example 3, “Do I add the exponents or multiply them?” Do you know of anything similar that is in the works?
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