Recent Blog Posts

A crucial early influence on me as a teacher, and in fact a key reason I became a teacher, is Project SEED‘s Socratic teaching method.

A guest post about The Calculus Project, by Adrian Mims, its founder and CEO.

In More on the California Framework I respond to an open letter to the Governor, written by traditionalists. In Yet More on the California Framework (Part 1), and (Part 2) I respond to another open letter, this one from data scientists. In Detracking, How To I summarize what I consider an essential ingredient in this conversation. Other relevant materials: my earlier post on the framework revision, and my articles Reaching the Full Range and Hyper-Acceleration.

Links to all the posts!

Updates to my Math Education Page

I added an applet about the graph of y = ax2+bx+c : what is the locus of the vertex when we change one of the parameters a, b, or c?

With permission, I posted materials from the legendary Project SEED: Guidelines for Discovery Teaching, and Discovery Mathematics Modules.

I added The Three Meanings of Minus, a short discussion-provoking lesson from Algebra: Themes, Tools, Concepts.

All Math Education Page Updates

What else is new

4 December 2021: I presented a hands-on workshop at the California Math Council conference in Asilomar — Tiling: a Springboard for Geometry. Tiling the plane (tessellation) provides opportunities for students to do creative work they take pride in. It connects with art (e.g. Escher) and culture (e.g. Islamic design). And it provides a rich context for basic geometry (sum of the angles in a polygon, parallels and transversals, regular polygons, etc.) and transformational geometry (rigid motions and some theorems about them).

16 September 2021: I sent out my e-newsletter, which included links to recent blog posts and numerous new and improved pages on my website.

June 2021: My arithmetic games are currently unavailable on the Snap! website. A GeoGebra version is on my website: Signed Numbers, Complex Numbers.

Other News

27 November 2018: I moved my blog into WordPress (here.) I thought the move had happened smoothly, but some graphics, and some entire posts, failed to materialize. Also, many links are broken. If you come across these problems, please notify me, indicating which post had the issue. Thanks!

Henri Picciotto

I have retired from the classroom after 42 years as a math teacher in K-12 — from counting to calculus. I now work with teachers and schools:
    Math Education Consulting

I share instructional materials on my Math Education Page, and my views about math education on this blog

On this page: announcements about new material, updates, etc. on the site; new publications; my appearances at conferences; and my other activities in math education.


My Résumé

Note: All material on this site is copyrighted. You may reproduce it for any non-commercial purpose, as long as you credit me and link to the blog. More info.

(I am also involved in word puzzles, especially cryptic crosswords.
More on this.)