Henri Picciotto's

Math Education Newsletter

January 2022

Hello all,

Much of my time these days is going into my "career" as a cryptic crossword constructor, but I still manage to do a little in math education. See below!


Blog Posts

Here are links to posts on my Math Education Blog that you might find interesting.
If you are so moved, you may comment on the posts, and/or subscribe to the blog.

Whole-class Discussion

As a teacher, I had my strengths and weaknesses. One thing I did reasonably well was conduct whole-class discussions that involved students in actually doing math. That skill originated largely in my days as a graduate student, when I taught math to third graders for 40 minutes a day, and was trained in the techniques of Project SEED. Those are suitable for a wide range of grade levels: I've used them from Kindergarten to teacher professional development workshops. I share some of them in this blog post. I also obtained permission to post two important Project SEED books on my website.


Related article: Taking Notes vs. Doing Math

The California Math Framework Revision (continued!)

As I mentioned in my September newsletter, California is rethinking its K-12 math program. This has generated much commentary in the form of tweets, open letters, and (in my case) blog posts. A revised version should be coming soon, hopefully incorporating some of that feedback. Until then, I will refrain from further comments. Here are my posts so far:

An Integrated Path

How to develop an integrated path through high school math is actually somewhat relevant to the Framework discussions. I present the approach I developed with my colleagues when I was department chair in this blog post: Integrating the High School Math Curriculum. I believe we were reasonably effective in addressing the shortcomings of the Algebra 1 / Geometry / Algebra 2 sequence, while also making the transition manageable for the teachers.

Related articles:

New or updated on my website.


Minus, of course, is a source of many mistakes. Possibly helpful: The Three Meanings of Minus, a short discussion-provoking lesson from Algebra: Themes, Tools, Concepts.

Changing a, b, c

Where does the vertex of a parabola go when you change one of the parameters `a`, `b`, `c` in the equation `y=ax^2+bx+c`? Your students can explore this question using this applet.


Geometric Puzzles

I share a lot of geometric puzzles material on my website. Because there is so much there, I decided to map out a coherent unit that provides a possible path through some of it.


Popular Pages

According to Google, these pages were the most frequently found since my last newsletter:

And Finally...

Small updates!

Get in Touch!

Feel free to email me if you have questions about this newsletter, my blog, or my website.

To subscribe to this newsletter, or to read past issues, click here.

P icon

Visit my Math Education Page

Read my blog

Follow me on Twitter: @hpicciotto