Sara Van Der Werf
@saravanderwerf.bsky.social
Math Teacher & sometimes leader. Connecter. Evangelist for Math. MN gal. Curator of a Calculator Museum. Backwards Bike rider. Want to be a writer and creator again. Love connecting with Math Peeps. Links: https://linktr.ee/saravanderwerf
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.
September 18, 2025 at 9:02 PM
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.
lol. Great response. But I am fully an adult.
September 18, 2025 at 4:31 PM
lol. Great response. But I am fully an adult.
Really close. Great guess. A bit older.
September 18, 2025 at 4:30 PM
Really close. Great guess. A bit older.
Gold star! Thanks.
September 18, 2025 at 4:30 PM
Gold star! Thanks.
Happy Bday to you too, my friend!
September 18, 2025 at 12:56 PM
Happy Bday to you too, my friend!
Reposted by Sara Van Der Werf
I know three people whose birthday is today. I told them that they should celebrate at 1:04. =)
September 16, 2025 at 12:27 PM
I know three people whose birthday is today. I told them that they should celebrate at 1:04. =)
Yes. So cool.
September 16, 2025 at 1:00 PM
Yes. So cool.
Reposted by Sara Van Der Werf
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...
And this is a special one for this century, because 2025 is 45²
bsky.app/profile/sara...
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...
Download a countdown HERE: docs.google.com/document/d/1...
September 16, 2025 at 12:35 PM
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...
And this is a special one for this century, because 2025 is 45²
bsky.app/profile/sara...