Did a fun #OIFMath today with sinusoidal functions, tweaked from the original found at natbanting.com/oops-i-forgot

So how much money upfront is that, truly, the math teacher in me asks. Still $0, says everyone

The activity:

Round 1: roll a die, place the number in a square. Add the numbers. Goal is to get as close to 800 without going over. 6 rolls total.

Round 2: roll a die, place the number in a square. Subtract the numbers. Goal is to get as close to 200 without going under. 6 rolls total.

Thanks for this, Dan! A colleague of mine adjusted the plans slightly to cut down the creation time (took about 6 hours for our printer to make this green one). Looking forward to extending the lives of these!

Cost was about the same, so do I choose one hardcover copy or five paperbacks? Easy decision. Might as well spread the math love ☺️
cc. @triangleman.bsky.social

1/2 Last Friday at our math-specific PD day I nervously offered a session on solving linear equations with a double open number line. It went better than I expected! Thanks to @pwharris.bsky.social for the inspo, @mathigon.bsky.social for the platform, and everyone who attended :)

Ultimate tic-tac-toe art school edition, bunnies vs cyndaquils

Yesterday's talk with my #MEL4E class about last week's Ontario election and the:
➡️ importance of being engaged citizens
➡️ probability of winners in the days leading up to the election
➡️ non-proportionality of votes vs. seats won in our current electoral system
Big thanks to @338canada.bsky.social

The unusual baker strikes again. The discard pile (along with only three piles for students to get new Qs from) was a good move #MTH1W #ThinkingClassrooms

I gave students the autobiography as well as a questionnaire (see below) at the end of the first week, after they experienced a few non-curricular tasks and got a sense of what the classroom structure was.

Build community, dig deeper about who is in your community, then start to grow together.

If you believe students don’t have math trauma, test that theory by having them write a mathematical autobiography. I learned so much about who they are and what they bring to the classroom. BTC as math therapy, merging the work of @themathguru.bsky.social and @pgliljedahl.bsky.social this semester

If the heart of your pitch is “math sucks”, maybe you shouldn’t be in the math ed space

Man, this targeted ad sure missed the 🎯

Preface with tally marks from different countries, use binary/Roman numerals/french numbers to describe how operations and structure are often baked into number systems, then create the numbers 0 to 20 with this number system. Then, write 24, 36, 48, and 223 in this system. #ThinkingClassrooms

Some of the best Tax Collector thinking I’ve ever seen. Knowledge mobility was 🔥 #ThinkingClassrooms

I don’t know, man

I was blown away when a student told me the quantities of each gift form a quadratic relationship (🌳x 12, 🕊️🕊️x11, 🐓🐓🐓x10, etc)