Let's say you want to teach your students about the equation of a parabola. Most textbooks and many teachers will begin just like this, with the general case. Start with the definition, establish a coordinate system, reason geometrically, algebra happens, and we're done!

RT @NathanJRobinson: dare to imagine a university that was more disturbed about the genocide than the people protesting it.

RT @dodecahedra: The dodecadodecahedron (center) is the rectification (truncation to the midpoint) of the great dodecahedron (left). The 12….

RT @prem_thakker: Today:

RT @YamenNashwan115: Today, I went to the aid distribution center in northern Gaza after three continuous days without eating a single piec….

RT @littmath: I've recently been talking a bit about how difficult it is to carefully check even well-written mathematics. I want to try to….

RT @MazMHussain: This is why I believe that many more and larger wars are inevitable including with the remaining Middle Eastern states whi….

RT @hexeosis:

Not messing around

RT @dripgrillionair: @owenbroadcast Classic.

And I don't wanna hear from you New York City "bodega" freaks, saying that Ritter sport dark chocolate marzipan bars are available on every street corner. You know where else they're available? In my kitchen cupboard (while supplies last).

Ok, they only had 8 on the shelf, so I grabbed those, plus a few more varieties. Marching back to America today with 11 Ritter sports bars. Pretty good haul.

I'm in Austria right now and Ritter Sport dark chocolate marzipan bars are available for €2. What's a reasonable number of these to buy and bring back to the US with me?.

RT @mpershan: Up on the education blog, I answer a question about how to get into reading research as a non-researcher. And I don't even….

RT @ilarrosac: Obtención de la ecuación de la parábola sin usar foco ni directriz, tal como podría haber hecho menecmo (s IV a.c.) #GeoGebr….

RT @pourfairelevide: it’s so crazy that Bob Dylan is a real guy. a vagabond jester beloved by millions for songs he refuses to sing, who tr….

We remember and cherish Who Put the Bomp (in the Bomp, Bomp, Bomp), but we've forgotten the contemporary doo-woo songs they were referencing. Really makes you think.

RT @dodecahedra: Algebra is just an abstraction and generalization of facts about numbers. Can't do algebra if you don't know numbers. You….

Also, stovetop, washing machine, gasoline pump, air conditioner. .

RT @JDHamkins: I am seeing that Common Knowledge is in the air again. See my essay on epistemic logic puzzles and the problem of common kno….

RT @Handcancel: "Twins who were going to eat a candy and dropped it" .by Akiyoshi Kitaoka. A superb 180° faces 画像. 🖤🖤 .