General Information:
Tim van Gelder: Teaching Critical Thinking; Lessons from Cognitive Science
Charles Twardy: Argument Maps Improve Critical Thinking
For more information about the research behind Rationale, see here.
Guides:
Secondary Educators Supplement
Assessment of Argument Maps:
Critical Questions for Reasoning Maps
Rubric for Essay Writing with Rationale:
Examples of Handouts and PowerPoint Lessons: