Category Archives: Publishing

APC: updates for Fall 2026

Posted on August 15, 2026 by Matt Boelkins

I’m pleased to share several news items related to Active Prelude to Calculus. Changes for Fall 2026 Active Prelude, available at https://activecalculus.org/prelude/, has been updated to resolve any reported errors.  In addition, some of the activities have been updated slightly … Continue reading →

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ACS2E: additional version with new and improved previews and exercises

Posted on August 8, 2026 by Matt Boelkins

I’m delighted to announce that a new, additional version of the 2nd edition of Active Calculus Single Variable is now publicly available on Runestone: Active Calculus with Doenet. The only differences are found in the preview activities and exercises; all … Continue reading →

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print versions of ACS2E workbooks now available for purchase

Posted on August 4, 2026 by Matt Boelkins

Thanks to our publisher, 619 Wreath, bound print versions of each of the 2nd Edition workbooks for Active Calculus Single are now available. See https://www.619wreath.com/store/p55/active-calculus-second-edition-workbooks.html.  The main textbook remains continues to be available in print at https://www.619wreath.com/store/p45/active-calculus-second-edition.html. The ACS2E landing page has also been … Continue reading →

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Printable worksheets for activities in ACS2e and APC

Posted on August 22, 2025 by Matt Boelkins

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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Active Calculus (Single) – updates for Fall 2025

Posted on July 22, 2025 by Matt Boelkins

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

Posted on August 8, 2024 by Matt Boelkins

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

Posted on September 1, 2023 by Matt Boelkins

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

Posted on August 27, 2023 by Matt Boelkins

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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Active Calculus 2019 updates

Posted on July 31, 2019 by Matt Boelkins

I’m excited to share several important updates: 1. new landing page at https://activecalculus.org 2. updated versions of Active Calculus (single variable, 2018 edition) in HTML, PDF, and print (with updated activities workbooks [1-4], [5-8], too) 3. updated version of Active Prelude … Continue reading →

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Active Preparation for Calculus

Posted on January 2, 2019 by Matt Boelkins

[August 2019 update: I re-named the text “Active Prelude to Calculus” as part of recent summer 2019 editing.  I won’t change the title again :-).  All else below still applies, with updated links.] Back in May, I wrote of my … Continue reading →

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