Tag Archives: online

Edfinity: a textbook-agnostic, NSF-funded nearly free online homework system

I’ve corresponded over the past couple of years with an education entrepreneur named Shivram about his company Edfinity.  They have an interesting project where they are working on an easy-to-use interface for online homework that allows instructors to access open problems and assign them to students for grades.  They have a sane and rational pricing […]

A new home for Active Calculus: https://activecalculus.org

I’m pleased to announce that the HTML version of Active Calculus will now be found at https://activecalculus.org/single/. At https://activecalculus.org/ you’ll find a landing page that includes an overview of features of the text, links to the various versions of the text, and notes about some ancillaries that are available upon request.  The PDF version remains at […]

More Linear Algebra

Many years ago, Gil Strang wrote a wonderful short essay titled “Too Much Calculus.”  His thesis:  calculus and linear algebra are imbalanced in the curriculum.  Even as the author of a calculus text, I totally agree.  Our students need more linear algebra, more in terms of time, exposure, and understanding. My phenomenally talented friend and […]

Active Calculus 2017 – print copy now via Amazon

In an earlier post, I noted that the 2017 version of Active Calculus – Single Variable was available for purchase via CreateSpace.  There were some minor technical issues with getting the text available on Amazon, but those have now been reconciled, and you can find it directly at this link.  It’s even available for Amazon […]

2017 version of Active Calculus: more updates + notes on differences from 2016

Here are several updates to follow my most recent post. + The 2017 PDF version has been finalized and posted online; the HTML has been slightly updated as a result of work to get the PDF looking suitable. If you have previously been accessing the HTML via my site, be sure to refresh your browser […]

Last day at AIM: meet some of my new friends

One of the very best parts of the workshop this week has been the time I’ve gotten to spend with the people here, some of whom I had followed online or traded email with, but never met in person.  Others I had talked with briefly at conferences, and of course there are a couple of […]

More from AIM: developments in free & open math texts

So much to share, so just going to go with a bulleted list for now.  Hope to flesh out more over the coming months. The American Institute of Mathematics is a cool place and they have an excellent organizational scheme.  About 30 of us with shared interests are fully funded to be here for the […]