As I do during this week every year, I am taking some time off to relax and prepare for the new year. Every day this week I will be featuring the most popular blog posts of the year. This was one of the most popular posts in April.

From analyzing a persuasive essay to dissecting research findings to determining the cause of an outcome in a science lab, having sharp critical thinking skills serves students well. Wireless Philosophy has a series of 33 video lessons about critical thinking. The most recent lesson explains the difference between causation and correlation.

Take a look at these 7 great tools for creating flipped lessons with these videos.