GeoGebra is dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package.
awesome dynamic paper from illuminations for use with geometry has spinners, graph paper, tessellations, nets, number lines. You can customize and print or download jpeg for insertion into another file.
"Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? Or a set of pattern blocks where all shapes have one-inch sides? You can create all those things and more with the Dynamic Paper tool. Place the images you want, then export it as a PDF activity sheet for your students or as a JPEG image for use in other applications or on the web."
Key Curriculum has just introduced this line of webinars, so as of 01-26-2012 there are no contents to this page. However, three webinars are scheduled to be shown over the next month. I would suspect then that this page will begin filling with content.