For those of you who may have missed an EDge21 featured post or who didn't have the opportunity to look at some of them during this past week, here's a second chance.
Grapher is a free tool bundled with Mac OS X that enables graphing and analyzing implicit and explicit equations in two or three dimensions. The results can be visualized as an animation or image.
Vocabulary Notebook provides a a set of tools for schools and teachers to help students learn vocabulary faster using technology, making it more contemporary and engaging.
DragonBox was created to counter student negativity toward algebra by making it simple to understand and learn algebra´s "big ideas," with or without help, at one’s own pace.
Glean has organized and structured the thousands of educational videos teachers post online every day. Browse through thousands of teachers’ videos, organized by topic, Common Core standard, and teaching style.