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Go ahead and Google it — one of those “great songs of the sixties” that was really from 1971 🙂 I thought today was massively unproductive — put together 1.7 and 1.8 but I thought they were done last week and… 1.9 is exponents.  As with the multiplication… I felt the concept was too important […]
June 28, 2017
The BEarded Math Man is posting some videos and … oh, Sal Khan’s got nothin’ on him : ) Â “Binomial reproduction” is one approach to factoring, with the analogy to “who’s the father?” Â to figure out “where did this come from?” Â If I were an adolescent I’d be luvvin’ it. Â (Now, it […]
June 26, 2017
I really do oft reflect happily about our Math courses being taught for understanding, and speculate that I’d find another job if they weren’t. Summer courses… ugh. Â Tech math so they’re allowed to use calculators for everything, including algebra problems like z/2 – 2/3 = -1/3z + 1/6 . Â No, there’s no context […]
June 9, 2017
I know, I know, students are fond of the alligator always chomping the greater number. Still, I wanted to feature Casey/Gravity 🙂  It behaved rather oddly — the greater than text layer switched to a mirror image of itself… then the dogs switched… I’ve observed with things visual or mechanical that my first attempts […]
May 26, 2017
Last night I chatted with a friend who’s a graphic designer specializing in educational materials. Â She loved programming but … math. Â She had said that when she sees a recipe and it calls for 1/3 or 2/3 … what??? I had been explaining to her the visual I need for my lessons: Â […]
March 16, 2017
Formulae are abstract. Â Substitution into a formula can be a meaningless machination. Â No longer, for the student who explained what we’d have to do to find the missing length knowing perimeter and side of a rectangle… double the width and subtract it from the perimeter. Â Well…. I showed him the substitution process and […]
March 3, 2017
29 degrees and not much wind at all … and I got out a little early. Â I could hear talk and laughter from one early-party group this “Unofficial Saint Patrick’s Day.” Imagining having funding. Imagining organizing (!yes, I think crazy thoughts on bike rides) the Urbana-Champaign node of OER innovations. Â The technology and its […]
July 11, 2017
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