The 10 great ideas for engaging students in grades 3 -5 in critical thinking described in this document can be used across the curriculum. The best part is that it only requires some poster size pieces of butcher/bulletin board paper and magic markers. These strategies include utilizing a student's interest in social media to create responses to analysis of images to teach vocabulary. There is nothing to print but ideas, and dangit, I just thought of another one. I wish I'd made #11.