This video is one of a series (all 5 minutes and under) which align to the 4th Grade Common Core Math Standards. This particular video relates to 4.NF.5, 4.NF.5a, 4.NF.5b regarding the concepts of angles and degrees.
You can download this video and include it in your own blogs or class website. It is a useful tool for 'virtual teaching' to students at home, or educating parents in a dignified way, or using directly in your classroom with your kids.
This video is in .mp4 format. Therefore, it