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I’d like to invite all of you to visit the Mathematics Teaching Community at https://mathematicsteachingcommunity.math.uga.edu where there is a discussion about this standard. The specific url for the discussion is: https://mathematicsteachingcommunity.math.uga.edu/index.php/358/7-sp-3-common-core-standard-clarification
Hi, I put some comments on the K-8 publishers’ criteria at the Mathematics Teaching Community https://mathematicsteachingcommunity.math.uga.edu more specifically, here: https://mathematicsteachingcommunity.math.uga.edu/index.php/271/school-aligned-with-common-core-state-standards-mathematics
Here is a reply to Scott’s September 30, 2012 posting from Sybilla Beckmann and Karen Fuson:
We strongly disagree that the multiplication method Scott refers to is an “incorrect modification.” First, it is a systematic and practical way of recording the steps of multiplication. Second, it has some advantages for students, which we discuss at the Mathematics Teaching Community https://mathematicsteachingcommunity.math.uga.edu in a posting titled “What is the standard algorithm?” at https://mathematicsteachingcommunity.math.uga.edu/index.php/230/what-is-the-standard-multiplication-algorithm where we also discuss the Chinese algorithm that Scott mentions.
