This is a thread for anyone who would like to learn the many facets of critical thinking; something that is necessary for any person coming onto this forum wanting to acquire knowledge and sharpen their minds.
Below are videos from 'teachphilosophy' on this subject, as well as a channel on critical thinking by Gregory B. Sadler.
https://www.youtube.com/playlist?list=PLFGHE1xQFhhxVI2LmT2yhT_huBZQqsXUA
https://www.youtube.com/user/reasoniocritthinking/videos
Subject: Critical Thinking 
Mon Apr 20, 2015 12:24 pm
