Steve Heller

Just tried @nhighstein's Desmos activities on Voronoi Diagrams! Wow. teacher.desmos.com/activitybuilde… I've been having fun writing fairly compact code for VDs. desmos.com/calculator/coa…

@pwharris Enjoyed the over podcasts. HS teachers may think it's too arithmetic? Couldn't completing the square be understood as an over strategy? #mtbos

I've been having fun proving and creating trig identities like this one: tan x + sec x = tan(x/2 + pi/4) #MTBoS #iteachmath

@pwharris Just listened to the podcast on addition using factoring. EVERYONE DOES IT! How many ways do you think of 700-300? Most people, I suspect, will respond effectively with (7-3)*100. Factoring to add, no?

@abeliangrape_ Yikes! I hope this week is better!!

food has been really hard this past week. work has been bananas and it means I feel like there's no time to stop and eat. I always think of something I heard at ED group which is "you have to choose recovery every day". I have not been able to choose recovery this past week. 1/

@mathigon just brought text URLs to life! #MTBoS

@Mathigon Is there a reason groups cannot be flipped? 3-click workaround (& proof of concept): ungroup-flip-regroup. I just ran into this again encoding one of Lee Sallows' amazing Geomagic Squares. Or allow disjoint merge (harder) mathigon.org/polypad/YDYWrN… geomagicsquares.com

@davidporas @MathigonOrg @desmosclassroom @Amplify While much improved, it is still buggy. When I try to edit the bottom text on this fixed-size canvas, the toolbar gets in the way, pinned or not. mathigon.org/polypad/gRIIwG…

@SteveRides @MathigonOrg @desmosclassroom @Amplify Great to hear. That one was “bugging” us for a while for sure!

The latest Polypad update includes the ability to split algebra tiles! Here's one way to use this feature. What are some of your ideas? Learn more about all our latest updates at youtube.com/watch?v=JEOChd… @MathigonOrg @desmosclassroom @Amplify #iteachmath #mtbos

I started to recreate the page, and it got wedged similarly. Perhaps something I'm doing is tickling a rare code path???mathigon.org/polypad/46orRN…

@MathigonOrg This utility (very important) page is in a bad state, so I can't interact with it; I can't see it all to recreate it easily (actually a lot of work), and I can't copy the contents. mathigon.org/polypad/rsYchI…

@MathigonOrg I tried the logic section. Sometimes after a save and then a restore, "wires" vanish. Here's an example canvas and a before and after restore pics. mathigon.org/polypad/7XZcVT…

@mathigon Students love changing colors, for (map) coloring of tilings, nets to be folded, or just objects. It currently takes lots of clicks & mouse motion. How about adding the ability to keep the color palate open, & maybe even pin it to the selected object like the toolbar?

@davidporas @MathiGon Sorry if this is a retweet ... How about a colorblind-friendly palate?

@SteveRides @MathiGon Nice! Looks great. Good idea about textures. We'll add it to the list.

@mathigon: I really like grouping! I used it here to decorate colored shapes to provide "texture" to help colorblind people distinguish colors. I wonder if having built-in textures would assist the colorblind. #iteachmath #MTBoS mathigon.org/polypad/RVtAnm…

@davidporas @MathiGon Thanks, David! A more straightforward enhancement might be to have colorblind-friendly palates as options.

@KiranABacche @jamestanton @GlobalMathProj @dhimath_india Nice! I know these as staircases: mathed.page/teachers/stair…

#maths #puzzles #Sunday #Fun #Math #Puzzle #Adventure @jamestanton @GlobalMathProj @dhimath_india Primes (2,3,5,7,11,13...) can be represented only as a single row of circles in the Rectangular world. Which are the primes in the Triangular world ?

@MathigonOrg I'm experimenting with decorating colored arrows with shapes to make them more colorblind-friendly, and the page was suddenly wedged. System being updated (maybe temporarily)? @davidporas #polygons" target="_blank" rel="nofollow noopener">mathigon.org/polypad/4LMzrR… --- the Twitter image is the one I expect

@davidporas @MathigonOrg Thanks, Dave. It will be a very cool and hopefully effective part of "discovering" Pick's Theorem.

@SteveRides @MathigonOrg Hi Steve. Not currently, but it’s actually something we are actively working on and is on our short term list of things to release in the coming months.

@MathigonOrg Does Polypad have a way to communicate the area of a custom polygon? @davidporas #iteachmath #mtbos Thanks!