David Clark
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dccmath.bsky.social
David Clark
@dccmath.bsky.social
Mathematician at GVSU, but all views are my own. Author of Grading for Growth, the book and the blog!

Blog: https://gradingforgrowth.com/

Book: https://www.routledge.com/9781642673814

Info: https://sites.google.com/mail.gvsu.edu/clarkdav/
Everyone gets zero guesses about what I'm doing on this, the last day of Thanksgiving break which also happens to be the day before December 1st.
November 30, 2025 at 7:55 PM
Whoops, forgot to tag him: @tqthq.bsky.social !
November 17, 2025 at 5:19 PM
That is AMAZING.
October 31, 2025 at 6:08 PM
Shared with permission: It's quarter-zip fleece season here in the north. You can't quite see the khaki pants but they match too. I told him that we could have coordinated on the shirt color.
October 31, 2025 at 6:07 PM
Yeah, agreed. Nonetheless, I've seen problems that have students create normal lines from normal vectors (which is easier, but still). Somebody once wanted it, it got added in to Stewart, and... here we are.
October 24, 2025 at 2:32 PM
Nope, don't teach it. I agree that it's probably either (1) super-duper lookahead to Calc 3 / vector analysis (which nobody will remember and can be taught quickly anyhow) or (2) algebra review about slopes.
October 24, 2025 at 1:33 PM
You have my sympathy. Sincerely - guy with a common name who adopted Gmail early.
October 21, 2025 at 4:29 PM
Autumn Meadowhawk, enjoying this hot and extremely dry autumn. The critters in my garden are still bringing me joy.
October 5, 2025 at 7:23 PM
This beauty, munching on my winter carrots, will apparently become an Eastern Swallowtail.

I did not have the heart to move it. Fewer carrots for me, more for it.
October 3, 2025 at 9:12 PM
This reminds me that I need to have my students translate "there's someone for everyone" into a properly quantified form. And then think about it reallllllly carefully.
September 29, 2025 at 12:50 AM
Must have forgot that the gas game plays with Price is Right rules.
September 26, 2025 at 10:31 PM
Tree frog on plastic deck chair. These guys will do ANYTHING to avoid actually living in a tree.
September 26, 2025 at 9:18 PM