Worthy of note in the “isn’t that cool” category is a video on integers created by Math Wrangler for his Grade 7 class in small town Hardisty, Alberta. While there’s certainly things you can pick on about the video, I like its simplicity. It appears to have been shot with only a simple video or digital camera and pulled together with some editing in Microsoft’s Movie Maker. It’s a simple yet neat approach to illustrate a sometimes troubling math concept.