Here’s the new XIIs Math Message Board! Feel free to post.

Geometry Tools

Congruent Triangles

Circle Graph Generator

Another Circle Grapher, but with more controls

Here are the tools we've been using:

Grapher

Here's a more detailed grapher

Just in case the first two aren't enough, here's a third!

Here are some helpful links on linear equations:

A simple explanation of linear functions (remember that f(x) is like y)
Here's more on graphing lines
Remember those little videos I showed on slope? Here they are, but you need iTunes to get them (they're free).