tag:blogger.com,1999:blog-5303307482158922565.post5638950636244061046..comments2024-02-08T09:27:51.016-08:00Comments on Math Mama Writes...: Lotsa Links: Tanton, Busking, Cat in Numberland, Spot It, ...Sue VanHattumhttp://www.blogger.com/profile/10237941346154683902noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5303307482158922565.post-8763791823690546652012-07-19T16:53:21.519-07:002012-07-19T16:53:21.519-07:00Hmmm, I thought it was a female who'd mentione...Hmmm, I thought it was a female who'd mentioned Spot It. I did Egyptian fractions with my students 2 years ago with my geometry kids, will do it again because starting next year I get the geometry kids for DOUBLE periods! So excited, more Sketchpad too. Ok, will check out Math Without Words, thanks, Sue!Fawn Nguyenhttps://www.blogger.com/profile/03605571262680195155noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-45557655052961699842012-07-19T08:04:32.404-07:002012-07-19T08:04:32.404-07:00Math Without Words is great for playful problems. ...Math Without Words is great for playful problems. <br /><br />I think his stuff on Egyptian fractions is in Arithmetic: Gateway to all. I think it's great for my diverse students to see the Egyptian history.<br /><br />Did someone beside Bowman mention Spot It?Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-20568161796590209422012-07-18T23:22:10.130-07:002012-07-18T23:22:10.130-07:00Thank you so much, Sue, for sharing your great rea...Thank you so much, Sue, for sharing your great reads! After last math circle workshop, I must have spent two solid evenings watching Tanton's videos; trying to save up now to get a couple of his books. (Do you have a particular recommendation?) I have to spend some time with Spot It; someone else had written about it too, referencing you, but I can't recall.Fawn Nguyenhttps://www.blogger.com/profile/03605571262680195155noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-3924027159250096522012-07-17T20:57:56.082-07:002012-07-17T20:57:56.082-07:00Oh yeah! I think I'm remembering that, 5*479*2...Oh yeah! I think I'm remembering that, 5*479*2, or (x-a)*(x-b)*(x-c)*(x-x)*(x-y)*(x-z). Good call. I don't guess I'd have made that #2 myself. I wonder if there's a broader principle he could have thrown that in with...Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-65312044393211574262012-07-17T19:18:29.962-07:002012-07-17T19:18:29.962-07:00One meaning of #2 is to not plunge into calculatio...One meaning of #2 is to not plunge into calculations without thinking: if memory serves, he uses the sorts of examples where if you look at what appears to be a bunch of grunt/grunge arithmetic, there's a zero hidden somewhere in the mess that will make everything a gigantic number or algebraic expression. . . times zero. So if you see that, no need to do all that other work.Michael Paul Goldenberghttp://rationalmathed.blogspot.comnoreply@blogger.com