This is the final post of my report on the Asilomar conference. (To read the whole set, start here.)I made a cameo appearance in my colleague Scott Nelson's presentation on how using computer software intelligently has made his Analytic Geometry course vastly more accessible. I loved his presentation. (If you teach in a member school… Continue reading Using interactive geometry
Tag: MySite
Semi-Retirement!
This school year, I'll be teaching only 17%, and I won't have any other responsibilities at school. This will open up time for other things. I may expand my Web site, take on more consulting jobs, or get involved in new math education projects. Do let me know if you want to hire me, or… Continue reading Semi-Retirement!
Puzzles in math education
Scott Kim, the author of the excellent Inversions, is launching a crusade to bring more puzzles to math education. He gave a talk on this subject at the Gathering 4 Gardner. (See the slides.) Martin Gardner, of course, is the author of the long-running Mathematical Games column in Scientific American. He inspired who knows how… Continue reading Puzzles in math education
The Quadratic Formula
In the period following the publication of Algebra: Themes, Tools, Concepts, we started asking our Math 1 students to write and illustrate a short report or poster, tying in four representations of a trinomial in the form x^2+bx+c. (Math 1 is Urban School's Math Department's version of Algebra 1, sort of.) I just posted a… Continue reading The Quadratic Formula
Additional notes on ATTC
I just added one final page about Algebra: Themes, Tools, Concepts. It consists of errata and other notes I took in the first few years after the book was published, in anticipation of a second printing or second edition that never happened. It may be a useful complement to the abundant notes in the Teachers'… Continue reading Additional notes on ATTC
ATTC upgrade
Algebra: Themes, Tools, Concepts (ATTC) is an algebra textbook I co-authored with Anita Wah in the early 90's. It was ground-breaking in some ways, and includes many extraordinarily effective approaches to the teaching of algebra. In fact, ATTC features powerful lessons on many parts of secondary school math, which are used by teachers in grades… Continue reading ATTC upgrade
Geometry Labs
My book Geometry Labs is now available for free download on my Web site.Whew! It was a bit of work to get it ready.--HenriPS: In addition to the book itself, I'll be adding links to revisions and extensions of the labs. So far, a revision of the rep-tile lab, and an extension of the soccer… Continue reading Geometry Labs
Sense-Making and Algebra 2
I gave a talk at the NCTM Institute on Reasoning and Sense-Making. The topic was "Making Sense in Algebra 2." It was an updated version of an old talk titled "Seeking Depth in Algebra 2". For the occasion, I updated the Algebra 2 page on my site. In particular, I posted the new version of… Continue reading Sense-Making and Algebra 2
In my other life…
My Web site was mentioned in this news article.--Henri
Manipulatives: Short Video
I added a short video of me explaining the basic idea behind manipulatives. Check it out.--Henri
Henri's Math Education Blog 