Author Archives: Matt Boelkins
print version of ACS2E is now available for purchase
Thanks to our friends at 619 Wreath Publishing, there’s now a bound print version of Active Calculus Single Variable 2nd Edition available for purchase, in both paperback ($38) and hardcover ($48). Bound versions of the ACS2E activities workbooks are forthcoming … Continue reading
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Image descriptions (alt-text) to comply with WCAG 2.1
The deadline to meet the Web Content Accessibility Guidelines (WCAG) 2.1 Level AA standard is late April 2026. Thanks to PreTeXt (the authoring platform in which our books are written), the text in Active Prelude, Active Calculus, and Active Multi … Continue reading
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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
Posted in Publishing, Resources, Teaching
Tagged activities, calculus, resources
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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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Tagged calculus, text
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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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Tagged calculus, online, open source, resources
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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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Tagged open source, resources, technology
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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
Posted in Editing, Publicity, Publishing
Tagged online, text
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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
