This is a great website for science videos, photographs and information for students and teachers to go through to find information. I love many of the videos you can look through to help make a lesson more concrete for students. However the videos are many and great they always start with advertisements which I do not like and think it takes away from the video. However if you look at the Kid version of National Geographic I did find they did not have advertisements before the video begins.
In this blog post, contributors Libby Woodfin, Tony Frontier, Laura Cabrera and Alice Mercer provide examples of the power of formative assessment to improve student learning. I was especially intrigued with first grader Austin and how his classmates used concrete, descriptive feedback to help him improve his scientific drawing of a butterfly. Check out the link!
This would be a great article to assign for a PLC text-based discussion using any of the protocols described by Venables on pp. 85-87 in his book, Turning Data into Action.