Here is yet another example of Common Core assignments making simple math more “accessible.”
Ridiculous #CommonCore examples. How do I math?pic.twitter.com/mlzAb9l86b
— Kim (@JBaileysMom) March 22, 2014
There are many problems with this. While it is a convenient “trick” and shortcut method of adding two numbers, not everyone will use the same trick. For example, the “Think 17 = 13 + 4″ might be better stated as Think 17 – 4 = 13.” but the problem is that it is just a mental shortcut.
Children need to understand how to do mathematics rigorously. While with simple problems this isn’t a big deal, the understanding of how to do it in a rigorous manner is necessary for more complected problems to be done correctly.
