Another activity I like to do for critical thinking can involve something as ordinary as a paper clip. Most students don't enter school being able to really think creatively (many adults actually have difficulty with that sometimes). I want them to think of new uses for the item. We talk about the normal ways we can use it, then brainstorm new ways. Any old object will do; I've used pencils, frying pans and my all-time favorite is the paper clip. It amazes me the way their little minds work. I did this with my class yesterday and the idea that really made me chuckle: one student opened theirs up to make a hanger for ant clothes! :) How cool!