John Hartmann
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jhartedu.bsky.social
John Hartmann
@jhartedu.bsky.social
20+ year teacher. Elementary. Former EdTech enthusiast. Now Math Interventionist. Interested in Instructional Coaching. From STL MO. Go Chiefs!
"Why are we learning this?"
November 22, 2025 at 9:18 PM
Hands down one of my favorite routines. And most of my kids beg to do them.
November 21, 2025 at 2:37 AM
What a great idea. Using similar strategies across subjects makes planning easier for the teacher but relieves students of having to navigate different learning routines. Win win.
November 21, 2025 at 2:36 AM
Just saw 5 Fingers on a hand and 18 holes on golf course. But the rest still haven't materialized.
November 21, 2025 at 2:33 AM
Yes. I imagine perspective, experience and current reality push us heavily. With recent meetings I'm wondering if the one is 18 hits on the Google Calendar 😁 #ElemMathChat
November 21, 2025 at 2:25 AM
Took me way too long to get 5 toes on a foot. But with as many teeth as my son has lost lately, 5 teeth on a fairy is probably more relatable 😅 #ElemMathChat
November 21, 2025 at 2:22 AM
I also notice my typing (and phones autocorrect) are wildly off. 🤣 So many type-os. Guess I spend too much time with numbers now. #ElemMathChat
November 21, 2025 at 2:21 AM
It's greater than 1 I saw.
October 29, 2025 at 11:10 PM
Maximum post, sir!
October 3, 2025 at 2:25 AM
First thought was to break 15 into 10 and 5. But then I noticed both were great candidates for double/halve. 30x12 is easier but I repeat the d/h to get 60x6. Now I'm working with a known square 6x6 is 36 and shift place value since it's 6 tens. 360.
September 3, 2025 at 11:22 AM