For the Fall 2020 Pandemic Semester, I taught two sections of GVSU’s 5-credit MTH 124: Functions and Models, our calculus-prep course. This is the course for which I wrote Active Prelude to Calculus, and this was my first time getting to teach the course from my own text. I taught the course in an unusual […]

My GVSU colleague Mandy Calvillo has developed a fantastic resource for students and instructors using Active Prelude: a YouTube library of 122 (!) short videos that offer additional perspective and explanation on key ideas in the text. The videos are numbered and labeled in alignment with the sections of the text. This is a wonderful […]

Here is my just-in-time post for back to school, Fall 2020 Edition. Overall: The two main things to know about the Active Calculus textbooks (Active Prelude to Calculus (APC), Active Calculus Single Variable (ACS), and Active Calculus Multivariable (ACM)) are that (a) the main landing site ( is always the place to find the current […]

Erica Miller of VCU had a brilliant idea:  set up AC activities in Google sheets for remote teaching so that her students can work in breakout groups on a shared document.  Dave Kung learned about this in an MAA-sponsored session on teaching remotely and had the idea to crowdsource building the sheets; he posted on […]

My GVSU colleagues have developed extensive video content to support all 8 chapters of Active Calculus.  Each screencast is enumerated with the section number that aligns with the text.  At GV, our Calculus 1 is MTH 201, which corresponds to chapters 1-4, while Calculus 2 is MTH 202, chapters 5-8, and thus you’ll see the […]

My colleague Marcia Frobish at GVSU has instantiated each of the preview activities in Active Prelude to Calculus as a Desmos activity. If you are a Desmos user, you should check these out.

I’m launching two groups for information about the Active Calculus texts:!forum/active-calculus-announce, where there will be infrequent posts announcing new editions and features, and!forum/active-calculus-users, which is a forum for instructors who use (or are considering using) the text. At the latter, I hope there will be a lively exchange of ideas that center on […]

Rob Beezer’s free, open authoring platform PreTeXt is what enables the fantastic HTML output for Active Calculus and so many other free, open textbooks. As part of my work with the PreTeXt Advocacy Group (Sally Koutsoliotas, Jennifer Nordstrom, Bruce Yoshiwara, and me), I’m excited to announce that PreTeXt is featured in the December/January issue of […]

Regarding the single variable text, I’m trying to gain some information about adoption, how the text is used, and what additional features are desirable.  If you use the text in your teaching, I’d greatly appreciate you taking 5 minutes to complete this survey: Responses by Friday, 10/18, will be most helpful.  Thanks.

Here’s an interesting article regarding the effect of electronic vs print textbooks on student learning when reading for understanding: “Our work has revealed a significant discrepancy. Students said they preferred and performed better when reading on screens. But their actual performance tended to suffer.” The article has lots of interesting observations on things like […]