A math education blog that contains some great musings on what it means to be a math teacher and how we can improve, including project and lesson ideas!
As an introduction to our unit on surface area and volume of solids, my students investigated cross-sections of solids through a Play-Doh Cross Sections lab activity. Materials: play-doh, paper plates, dental floss, plastic knife, and ruler.
A great math activity idea that revolves around using Play-Doh to help students learn about solid cross-sections. I've always had a hard time visualizing these types of things, and I wish my teachers had used this lesson idea! I can't wait to try it!
This site has a TON of videos for lessons on all subjects. It is a bit overwhelming, but it can be filtered/searched through. This link takes you directly to the filter: Teachers, Secondary, Mathematics
Overview:
Two different bar graphs are made from the same survey of favorite foods.
The students need to determine which graph is more fair and why, by studying
the graphs and altering the data.
Let us climb peaks by all means, because their beauty attracts us; not because others have failed, nor because the summits stand 28000 ft above the sea…Let us approach the peaks with humility, and through finding the way to them…learn to solve their problems.
Eric Shipton (1938)
A great math education blog that contains reflections on being a teacher and great resources to use in the classroom, including lesson ideas and book reviews!
Dynamic textbook, lesson plans, widgets, interactive demonstrations, etc. from the makers of Mathematica, Wolfram|Alpha, and the Wolfram Demonstrations Project
Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources also available.