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Finally, you made the assertion that common core standards are not developmentally appropriate. I made the comment that failure rates would have gone through the roof if that were true. I don't see any evidence of that.
Making orange juice by processing oranges in some way, and grilling steaks over a fire in some way have both been around for centuries, why has grilling steaks dominated ?
The reason is you are talking about different things. Using the method described to confirm in your mind that 8 + 5 = 13, is simple and it's a pattern that can be expanded to understand that 59 + 43 = 102 (in your head instantly) . So it's a basic pattern for mental arithmetic. It's not being taught as a substitute for the traditional method, but it is being taught first.
Isn't giving students a choice in the methods they use something you argued in favor of earlier ?
My god Marcus, reading comprehension?!
This isn't choice, this is my way or the highway, where "my way" seems to be entirely arbitrary.
It's not steak or orange juice. You can have both.
The teachers are insisting on the number bond method, not saying "Whatever works for you"
HS students in most states can get away with just one or two math classes
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Since when does 8+5 = indicate subtraction?
#CommonCore