I apologize if this was already posted, but I found it very interesting, and had to share: http://www.washingtonpost.com/blogs...-so-many-kids-cant-sit-still-in-school-today/ The article is about how kids are sitting upright too often (versus rolling, climbing, spinning, etc.), which leads to poor core strength. Since reading it a few weeks ago, and watching my students closely, I can really see a lot of truth in this! My "athletic" students, who are involved in more sports, dance, etc. are much more attentive and have better control of their bodies than students who are constantly talking about Minecraft, XBoxes, and iPads.