Joey Kelly

College Board's CEO on How AP Courses Are Changing for the AI Era College Board CEO David Coleman on AP’s shift toward career readiness, AI’s impact, and new courses in cybersecurity and business.

this interview makes me want to crawl out of my skin and for the life of me I don’t understand why there is no secular liberal arts in high schools movement

www.edweek.org/teaching-lea...

I got to work w a district math ldshp team this week. We always start our time by doing a math task and positioning ourselves in the space Ss occupy everyday in our class. This time we used Cube nets vs cube nots from @playwyourmath.bsky.social it was accessible to all & lead to great discussions!

"Some numbers have digits that are: like 4321, always decreasing; like 3214, sometimes decreasing; like 1134, never decreasing. Using only 1s, 2s, 3s, and 4s, how many 4-digit numbers are never decreasing?"

32. Never a Down Moment playwithyourmath.com/2025/03/01/3...

New PWYM dropped 🧊🥅

Follow-up: What about open top nets versus nots among the pentominoes?

#iTeachMath 🧮

Bonus @playwyourmath.bsky.social individualized student research question threaded below! #MathSky ♾️

06.12.17 Nim-like Game Stations Station 1: Hackenbush Each turn, you erase an edge. If an edge is no longer connected to the bottom, it disappears. To win, remove the last edge. Winning Positions: Losing Positions: Station 2: ...

Also, one year I tried following up Nim with some variations: Hackenbush (my personal favorite), Northcott's game, and cornering the rook. Each of those starts out essentially equivalent to Nim and has a fun visual docs.google.com/document/d/1...

YouTube video by noblestatman Survivor: 21 Flags

Hmm not exactly. The last few times I did NIM in class, I launched it like a 3 Act task, starting with this grainy footage from survivor that @bowenkerins.bsky.social showed in some PD a while back: www.youtube.com/watch?v=aonC...

31. Nets and Nots playwithyourmath.com/2025/02/01/3...

Variations: What if you tried it with a triangle? Or fold the paper three times?

Why it matters: this problem demands justification. Are you sure that is the most possible amount of sides? Convince me! I've only sort of convinced myself that I found the most sides.

#math #puzzle #professorsoftiktok TikTok video by Marc Ordower

Where it comes from: I saw this TikTok from Marc Odower and could immediately picture the poster. I love that the comments are all over the place and don't appear to contain spoilers. www.tiktok.com/t/ZT28SUkoy/

Tasting notes: while I'm most curious about finding the most possible sides, it's interesting to be thorough and systematic, trying to find all the different ways to fold

How to play: I recommend using Post-its. They encourage trying it out several times with very low stakes.

29. Two Fold How to Play Before I introduce the problem, I pass out some Post-its. One pad of Post-its is enough for a group of students to try the problem several times. Attempt 1: I first ask students to fold…

I wrote up some of my thoughts about one of our recent @playwyourmath.bsky.social problems: 29. Two Fold. misteristhisright.com/2025/01/23/2... #iTeachMath #mtbos Some highlights in the thread

This is also a fun way to explore star polygons

We only intended forward steps, but back steps might be interesting! I wonder what that would change …

Cool. Keep playing! Try “or 170 or …”

"Illustration of a 30-step jumping sequence in a circular layout with numbered steps from 1 to 30. The sequence is labeled with the text: 'Jump Step- on this road a STEP talked you one space, and a jump multiplies your space by 3. The fastest way from 1 to 10 is 3 moves (1 - 3, then 3*3 =9 the 9-10. How fast can you get from 1 to 1000? (of 170, or...?. Source: mathematics teacher February 1999.

Not sure if the #playwithyourmath team are "here". I can't wait to try out the newest post, Jump Step, playwithyourmath.com/2024/12/01/3... #iteachmath #imentormathed #MTBoS

I’m here, reading a lot and posting a bit. And CiCi just set up @playwyourmath.bsky.social

Would love to hear what you think of this one! I had a lot of fun with it and will blog my thoughts at some point

On this road, a step takes you one space, such as from 3 to 4, and a jump multiplies your space by 3, such as from 3 to 9. The fastest way from 1 to 10 is 3 moves: 1 jumps to 3, 3 jumps to 9, and 9 steps to 10.

30. Jump Step playwithyourmath.com/2024/12/01/3...

On this road, a step takes you one space (from 3 to 4) and a jump multiplies your space by 3 (from 3 to 9). The fastest way from 1 to 10 is 3 moves: jump from 1 to 3, jump from 3 to 9, step from 9 to 10.

Happy December! We just posted a new Play With Your Math problem! #iteachmath

30. Jump Step playwithyourmath.com/2024/12/01/3...