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I'm not impressed when my students can add two numbers together. I want to know if they understand the math behind the algorithm. You like "the old way" becaus
by hdctambien 10y ago
I'm not impressed when my students can add two numbers together. I want to know if they understand the math behind the algorithm.
You like "the old way" because that is how you learned it. But when push comes to shove, I bet you actually use pflats method to do math in your head.
http://www.patheos.com/blogs/friendlyatheist/2014/03/07/about-that-common-core-math-problem-making-the-rounds-on-facebook/ http://www.patheos.com/blogs/friendlyatheist/2014/03/07/abou...
- tropo 10y agoReally I don't. I do "the old way" unless I happen to spot a nice pattern. (in this case the pattern involves knowing that 17 times 2 is 34 and that 17 times 3 is 51) My speed and reliability allowed me to focus on understanding higher-level math. With little effort, I easily blew past my peers for years afterward. Using pflat's method, my reliability would drop. There are too many extra numbers to account for.