3 ms·
Or you could teach somebody how to 'carry the 1' and get this done in a less mentally taxing way, being faster and still understandable. This looks like a brain
by michaelbuddy 10y ago
Or you could teach somebody how to 'carry the 1' and get this done in a less mentally taxing way, being faster and still understandable. This looks like a brain dump of how 'somebody somewhere' conceptualizes math and now we're all supposed to put it in play en masse because it 'shows the work'. I look at this math and if I was in 3rd grade, I would know in my gut this is BS. Does anyone actually think that more written steps will remove mistakes, because less moves = less mistakes.
- hdctambien 10y agoI'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.