Just back from the California Math Council Northern California conference. It takes place in Asilomar, a state beach and convention facility in Pacific Grove, near Monterey, CA. I've been taking this trip every year with the Urban School Math Department for who knows how long. We all ride down together in one van, and hang… Continue reading Standards
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Complex Instruction
I visit a lot of schools and a lot of math classes. To be honest, those visits are often disappointing. Many math classes, at many schools, are depressingly similar: going over the homework; the presentation of a microskill by the teacher, while many students are thinking about something else; students starting the day's homework based… Continue reading Complex Instruction
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!
Workshops in New York in August
I will be leading two summer workshops for teachers in New York City, Aug 13-17.The early-bird registration discount (15% off) is being extended to June 25.VISUAL ALGEBRAI have offered this 3-day workshop, and various parts of it, many, many times. It's about intelligent use of manipulatives and technology, plus a parallel axes representation. Also: three… Continue reading Workshops in New York in August
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
Presentation at SF State, May 1
I was invited by the San Francisco Teachers' Math Circle to present some problems. Here's the basic info.When: Tuesday, May 1 at 6:00 PM Where: Trailer P (behind Thorton Hall) at San Francisco State University 3699 19th Avenue, San Francisco, CAAs far as I know, the event is free, and dinner is included!I will present a pattern… Continue reading Presentation at SF State, May 1
Early Bird Discount
About three months ago, I mentioned my summer workshops for teachers and summarized how they will differ from their previous incarnations.Brief recap:- Hands-On Geometry, June 18-21 in San Francisco- Visual Algebra, August 13-15 in New York City- Re-imagining High School Math, August 16-17 in New York CityThe workshops are sponsored by the Center for Innovative… Continue reading Early Bird Discount
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
Playing Games
I attended an Escape from the Textbook! meeting last weekend. The first part of the meeting focused on the mathematics of the game of Set, and the second part launched a conversation about assessment, which will continue in future meetings. Avery Pickford took notes, and posted them on his excellent blog, "Without Geometry, Life Is… Continue reading Playing Games
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
Henri's Math Education Blog 