Math Ed Page Updates

In addition to my blog on WordPress (this site) I maintain a huge math education site, featuring articles about teaching math and tons of curricular materials. You should definitely check it out. I will keep track of updates to the site on this page.


Summer Workshops: This is the page about my 2019 summer workshop: Visual Algebra (grades 6-9), in two locations: June in Silicon Valley, August near Boston. I added a link to the participants’ website. I also added mentions of continuing education / graduate school units, and the 75% discount for public school teachers.

I added links to Liz Caffrey’s Desmos versions of Letters and Postcards and Geometry Labs 9.3 and 9,4. I added a note about Geometry Labs 6.1.

Symmetric Polygons: I corrected a mathematical error and expanded the teachers’ notes in this activity for grades 8-10. Co-authored with Lew Douglas.

Seems Isosceles!: I added some interactive GeoGebra images to this “teachers’ mathematics” exploration.

Geometry Labs: minor tweaks.

Résumé: updated.

SuperTangram Labs: I replaced an html worksheet which was not really usable with a downloadable PDF. (For more information about supertangrams, go to Geometric Puzzles in the Classroom.)

For a Tool-Rich Pedagogy: This page consists of an argument for the use of manipulative, technological, and paper-pencil tools in math education, followed by a long (but probably incomplete) list of links to related pages on my site. I added a link to my popular page about pattern block dodecagons.

Pythagorean Theorem home page: I added an image.

Geoboard home page: I added “Connect the Dots” — lattice puzzles and problems for teachers, which can also be used in math clubs and in the classroom. (We worked on those at Math Teachers’ Circles.)

Summer Workshops: I set up that page to announce my 2019 summer workshop: Visual Algebra (grades 6-9), in two locations: June in Silicon Valley, August near Boston.

Soccer Angles: I added interactive GeoGebra applets to this page, which is an extension of the low-tech Lab with the same name in Geometry Labs.

Spirograph Simulation: For some reason, while the online applet worked, the GeoGebra file I included did not open when downloaded. I got some help on Twitter, and posted a corrected version.

Résumé: updated.

Math Ed Consulting: minor tweaks.

Electronic Graphing: minor tweaks.

Errata: I added a bunch of downloadable corrected pages to the Lab Gear books Errata page.

Front Page: I added a short intro at the top, and a link to my Twitter page at the bottom. I made similar tweaks to the About page.

Pattern Blocks: I added a link to Jen Silverman’s GeoGebra pattern blocks applet.

Site index: I added links to the games Parisa Safa coded for me in Snap! (Signed Numbers | Complex Numbers)

I created a conic sections home page. (Links to the geometry of the parabola and ellipse, 2D and 3D, and more.)