Critical Thinking

http://www.criticalthinking.net/
CriticalThinking.Net is a site that gives a definition, teaching guide, and an assessment to critical thinking.

http://www.calpress.com/pdf_files/what&why.pdf
Critical Thinking: What It Is and Why It Counts is a site providing a background to critical thinking and the value it has in our life.

http://www.csicop.org/si/9012/critical-thinking.html
A Field Guide to Critical Thinking is a site providing a six rule guideline to apply in determining the truth.

http://www.ntlf.com/html/pi/0105/revision_1.htm
" Radical Course Revision: A Case Study is one instructors’ personal modification of a course to motivate students and provide an atmosphere for critical thinking.