A collection of mathematical tidbits to help make math more accessible. Written by a secondary teacher, the blog also includes tools for math educators at all levels.
Editor reviews are provided by professional editors who evaluate a blog based on the following criteria: Frequency of Updates, Relevance of Content, Site Design, and Writing Style.
My students asked how you could have positive acceleration but negative velocity. The spacebus holds the answer: click on the bus, then use Page Up and Page Down keys.
I ran across this diagram on another math site recently:
It’s a good diagram, but a little misleading. Between any two rational numbers is another rational number, so the rational number line would appear to be solid at any given magnification. ...
Here’s a problem that I cooked up today to puzzle the math team.
You must slice a cone parallel to the base to create two pieces such that one piece has twice the volume of the other. If the cone has a height of h, where do you make the slice? ...
