Working and playing at the intersection of mathematics and children's minds. Author at Stenhouse. Public Math. (Find me on blue sky, where I am triangleman.)

St Paul, Minnesota
Joined December 2009
Hey @mctm_mn friends! Be careful out there! I-35 conditions change abruptly about 20 miles south of Duluth. Be safe! #mctmduluth
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Just fyi math teachers, this weeks Ted Lasso features a trippy Donald Duck in Mathmagicland sequence.
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Replying to @MathforLove
Guess what arrived today? #21centurypb Super excited! Started simple… then made a few of @MurrayH83 designs! What an inspiration! @MathforLove ❤️❤️❤️
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Christopher Danielson retweeted
Pattern block play with #21CenturyPB.
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Some days in this job, supporting your colleagues means going back through your Twitter feed for examples that illustrate very particular math ideas. And SOME days, that leads you to this kind of beauty!
My favorite noticing/wondering from @MathOnAStick today
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Christopher Danielson retweeted
Did “Playing Outside Every Day” get added to Spotify yet?
now this is a kids BOP, okay?
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Christopher Danielson retweeted
Pattern block play with #21CenturyPB.
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Me: "Why doesn't the denominator change?" Student: "Because that's our unit. It's not changing." #ElemMathChat
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Christopher Danielson retweeted
Pattern block play with #21CenturyPB.
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Christopher Danielson retweeted
Remember how beautiful the weather was last week? Now imagine that, but also playing ultimate. Yeah, pretty amazing, right? So head on over and get signed up for our summer leagues. Registration is only open until April 28, so hurry! mnultimate.org/sign-up
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Relatedly, has anyone counted the tiles in these four visual patterns stages? I’m getting 4, 25, 169, and haven’t attacked the fourth one. nytimes.com/2023/03/28/scien…
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Christopher Danielson retweeted
Only two weeks away if any is interested!
Are you a math coach, instructional coach, department chair, or other PK–12 school leader in mathematics? If so, have you registered for the ICTM Coaching Mini-Conference, yet? You don't want to miss this! ictm.org/coaching-mini-confe…
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