Today while I was wading through my Pinterest feeds I came across this excellent resource shared by Teaching Resources. This resource contains some good posters that promote critical thinking. The one like the most is included below , but there also a few other posters relevant for classroom use. You might want to have a look and probably share with your colleagues.
As for the Teaching Resources Pinterest board, this is a board created by Emmy Gilliam and has more than 12.000 followers.
Via Elizabeth E Charles