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Sara Van Der Werf @saravanderwerf.bsky.social · 2d

My coworker Mike is a new mathematician today.

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Sara Van Der Werf @saravanderwerf.bsky.social · 3d

Seen @nctm.org this morning. I’m not there but my coworker Mike is. Say Hi to him. #iteachmath

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Sara Van Der Werf @saravanderwerf.bsky.social · 4d

Hey Math Friends in Atlanta. I am not there, but so jealous. Can you post pics of the sessions you attend and people and slides and...let me have an at home experience. Also, look for my MN friends there. Hang out with them. (also look for my coworker Mike Huberty in costume)

Sara Van Der Werf @saravanderwerf.bsky.social · 24d

I do!

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Also. Google the mathematician pictured. (Alexander Grothendieck) Turns out there is a name for numbers that are not prime but feel like they should be.

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

I turned 57 today! All previous posts connect to this number. Happy Thursday all. (just humoring myself)

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

I know some of you have been wondering about my posts in the last 12+ hours. I am just humoring myself. But I know some of you are worried - here is my proof - within a couple of hours I received these texts from my sister, brother and mom. More soon to connect all the previous posts today.

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

lol. Great response. But I am fully an adult.

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Really close. Great guess. A bit older.

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Gold star! Thanks.

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

My age today is NOT a prime number, BUT a lot of people think my age is a prime number? How old am I? #mtbos #teachmath #mathstoday

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Heinz!

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Happy Bday to you too, my friend!

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

The Alexander Grothendieck legend.

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Lanthanum

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Columbia!

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 18

Lets Visit Italy’s Islands!

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 16

Yes I made a homemade ‘Happy Perfect Square Day!’ pin to wear today. Do something that involves a right triangle today & let me know what it is. #iteachmath #mathstoday

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Reposted by Sara Van Der Werf

Blake Esselstyn @mapblake.bsky.social · Sep 16

I know three people whose birthday is today. I told them that they should celebrate at 1:04. =)

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 16

Yes. So cool.

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Reposted by Sara Van Der Werf

Blake Esselstyn @mapblake.bsky.social · Sep 16

I just learned from a math teacher that it is a day: Perfect Square Day!

And this is a special one for this century, because 2025 is 45²

bsky.app/profile/sara...

Sara Van Der Werf @saravanderwerf.bsky.social · Sep 7

9 days until Perfect Square Day! I know 9/9/25 is a perfect square, but 9/16/25 hits a bit different as it connects with a 3/4/5 right traingle. On another note, I made my nephews pose for this pic when the turned ages 3, 4 & 5.
Download a countdown HERE: docs.google.com/document/d/1...

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 15

1 day! Does it have to be squares off of each side of the triangle? Also, my nephews at ages 3, 4 and 5. Enjoy. #iteachmath #mathstoday #mtbos docs.google.com/document/d/1...

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 11

Correlation? Causation?

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 11

What math task? What math context? should make it into the K-12 Math Hall of Fame? Let's hear your choices! #mtbos #iteachmath #mathstoday

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Sara Van Der Werf @saravanderwerf.bsky.social · Sep 7

9 days until Perfect Square Day! I know 9/9/25 is a perfect square, but 9/16/25 hits a bit different as it connects with a 3/4/5 right traingle. On another note, I made my nephews pose for this pic when the turned ages 3, 4 & 5.
Download a countdown HERE: docs.google.com/document/d/1...

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