I present the question in the second half of this (the fuel efficiency part) on the first day of class and then I present the answer when we get to chain rule. It gives the kids who “already know this stuff“ something to think about and it’s super fun. what-if.xkcd.com/11/

Before the semester starts I email my students and ask for pictures of their pets to use for that semester's 'blind stopwatch'. We use this to get data as a jumping off point for talking about normal distributions. www.desmos.com/calculator/p...

So, this relies on a regression to get the center of circles of fixed radii passing through two points. I put the radii on sliders to mess around with the curvature. Hopefully future me is thinking "the circles aren't unique though!" You're correct. Have fun with that! www.desmos.com/calculator/e...

I use this to keep track of where I am in the semester so that the end of the semester doesn't sneak up on me. I've been making it by hand every semester for 3 years and I only just thought to build it in Desmos. www.desmos.com/calculator/w...

Fun Fact: The Macy’s Thanksgiving Day Parade started in 1924, but this year is only the 98th Annual Parade. That is because the parade was not held during World War 2, when it was impossible to source material to make the balloons as it was going to the war effort. Happy Thanksgiving!

@nycdot.bsky.social I know you aren't their real account, but: Thank you for making the Macy's Thanksgiving Day parade possible! Those streetlights aren't turning themselves!!

I'm enjoying this too much.
www.desmos.com/calculator/t...

@desmos.bsky.social Are you considering animated graphs (or judging the animation in graphs, if there is any)? www.desmos.com/calculator/p...

I've made a test timer in Desmos!

www.desmos.com/calculator/p... @desmos.bsky.social