Author Archives: Matt Boelkins

Printable worksheets for activities in ACS2e and APC

Thanks to a recent PreTeXt development, all Preview Activities and Activities in both ACS2e and APC can be printed in PDF directly from the HTML version. For example, if you look at Activity 1.5.2 in ACS2e, you’ll see a printer … Continue reading

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Updated ancillary resources for Fall 2025

See the note at https://activecalculus.org/instructors/ that takes you to the instructors’ Google group for more information and links to various resources.

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Active Calculus Single – 2nd edition is available

I’m delighted to share that the 2nd edition of AC-Single has now been officially released in HTML and PDF: you can learn more at the landing page for this edition of the text at activecalculus.org/acs2e/, with the HTML version at … Continue reading

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Active Calculus (Single) – updates for Fall 2025

Several important changes are coming to Active Calculus (Single Variable) in time for the Fall 2025 semester, including a new Second Edition; at the same time, the current versions will remain fully available for the foreseeable future. If you are … Continue reading

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New workbooks: now with space between prompts

I’m excited to announce a change in the layout of the workbooks for Active Calculus (Single) and Active Prelude. Thanks to some recent developments in the PreTeXt worksheet environment and especially thanks to Mitch Keller’s technical expertise and production genius, … Continue reading

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Math with all the feels

The following is a guest post from David Austin. David is Professor of Mathematics at Grand Valley State University, author of the free OER text Understanding Linear Algebra, chair of the American Institute of Mathematics’ Open Textbook Initiative Editorial Board, … Continue reading

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Three notes about updated HTML for APC and ACS

For all Active Calculus texts, users should always view the HTML version of each as the definitive version: the HTML is easiest and fastest to update. You can always see the last date the HTML was updated by going to … Continue reading

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More on Active Calculus in Runestone

As noted in an earlier post, at Mathfest in Tampa, Chrissy Safranski and I led a minicourse on teaching Active Calculus and using Runestone. We had a great time doing that and here I want to share a few updates … Continue reading

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Two free, open calculus texts for specialized audiences

If you are teaching a class titled something like “Business Calculus” or “Calculus for the Biological Sciences” anytime soon, this post is for you. Mike May and Anneke Bart of Saint Louis University have an excellent text for business calculus, … Continue reading

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Active Calculus news and updates for Fall 2023

The summer of 2023 has been an exciting time of new developments and opportunities related to Active Calculus. In this post I’ll offer a short overview of the biggest items, and then offer more details in subsequent posts. View this … Continue reading

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