Jenmomof3 Posted December 13, 2010 Share Posted December 13, 2010 Anyone here taught multiplication like this? Makes a lot of sense, but never thought about doing it this way. Really neat to see it graphically. Quote Link to comment Share on other sites More sharing options...
Caitilin Posted December 13, 2010 Share Posted December 13, 2010 Wow! Crazy, but cool! Quote Link to comment Share on other sites More sharing options...
Perry Posted December 13, 2010 Share Posted December 13, 2010 That was really interesting. Unfortunately, it gets unwieldy with high numbers. I tried 999*999 and got hopelessly lost. :) Quote Link to comment Share on other sites More sharing options...
Mejane Posted December 13, 2010 Share Posted December 13, 2010 Interesting, but reminds me too much of that awful (imo) Everyday Math. Quote Link to comment Share on other sites More sharing options...
Jenmomof3 Posted December 14, 2010 Author Share Posted December 14, 2010 Yea, I bet it gets a little crazy with big numbers. I haven't seen multiplication in Everyday Math. Do they use this? I don't think I'd use it as a main way to do multiplication, but I think I may use it as a good discussion with my math loving son to see if he can understand the logic behind it. I'm sure he'll love it. Quote Link to comment Share on other sites More sharing options...
SonshineLearner Posted December 14, 2010 Share Posted December 14, 2010 It's fun to do it with the squares, too. :) Quote Link to comment Share on other sites More sharing options...
Perry Posted December 14, 2010 Share Posted December 14, 2010 I haven't seen multiplication in Everyday Math. Do they use this? They don't use this particular method. Here is a pamphlet describing the ways multiplication is taught in EM (starts on page 62). My complaints with EM were that they didn't explain many of the techniques, and they didn't ever get around to teaching the traditional algorithms. Quote Link to comment Share on other sites More sharing options...
extendedforecast Posted December 14, 2010 Share Posted December 14, 2010 I learned this in elementary school for fun. My teacher called me up to his desk during a test I'd already finished and showed me. I took a few problems to my desk to solve. It was amusing for a couple of days :001_smile: Quote Link to comment Share on other sites More sharing options...
Mejane Posted December 14, 2010 Share Posted December 14, 2010 They don't use this particular method. Here is a pamphlet describing the ways multiplication is taught in EM (starts on page 62). My complaints with EM were that they didn't explain many of the techniques, and they didn't ever get around to teaching the traditional algorithms. Yes. It's that whole grid thing. My daughter was taught EM in fifth-grade ps. Still makes me shudder. Quote Link to comment Share on other sites More sharing options...
Liz CA Posted December 14, 2010 Share Posted December 14, 2010 :lol: Uhmmm...I have to just say this...when I read the title something else came to mind... Quote Link to comment Share on other sites More sharing options...
DarlaS Posted December 14, 2010 Share Posted December 14, 2010 :lol: Uhmmm...I have to just say this...when I read the title something else came to mind... Me too. It had never occurred to me to wonder. I just figured they do it like everyone else does. :leaving: Quote Link to comment Share on other sites More sharing options...
Snickerdoodle Posted December 14, 2010 Share Posted December 14, 2010 Vedic Mathematics Quote Link to comment Share on other sites More sharing options...
Mommyfaithe Posted December 14, 2010 Share Posted December 14, 2010 Me too. It had never occurred to me to wonder. I just figured they do it like everyone else does. :leaving: :lol: Quote Link to comment Share on other sites More sharing options...
BMW Posted December 14, 2010 Share Posted December 14, 2010 Yes, something else did come to mind... particularly because I had just had a looooong talk with 20yodd about childbirth (she's due in 7 weeks!) and how contractions work and to relax with them... Quote Link to comment Share on other sites More sharing options...
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