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Gary Comstock (professor of philosophy at Norh Carolina State University):

 " Before Rationale, I was only able to lecture at my students about the skill of evaluating arguments. 

After Rationale, I have the technology I need to help them actually acquire the skill." 


Kees van EE, Stafbureau O&O, Hanzehogeschool:

' Finally: a method that provides lecturers with real tools to help students getting their thinking and writing to a higher level.

And even more: the excellent Rationale program helps you making a good structure for your reasoning, arguments, analyses and evaluation.'


 More testimonials





- Alvarez, C., Does Philosophy improve Critical Thinking Skills? 2007. A meta-analysis of rearch on the effectivity of different methods to develop critical thinking skills. Click here for a map of the conclusions. For the meta-analysis itself click here ( see especially Chapter 5).

- Davies, W.M., 'Not quite right' : helping students to make better arguments. Teaching in Higher Education. Vol.13, No. 3, June 2008, 327-340.

- Davies, W.M., Concept Mapping, Mind Mapping and Argument Mapping: What are the differences and do they matter? 2007.

- Elsegood, S.,Teaching Critical Thinking in an English for Academic Purposes Program using a 'Claims and Supports' Approach. Refereed paper presented at the 10th Pacific Rim First Year in Higher Education Conference, 2007.

- Gelder, T. van, Teaching Critical Thinking: Some Lessons from Cognitive Science. College Teaching, 53,1, pp. 41-46. (2005). For a map of the conclusions/lessons of the article see here .

A Dutch translation: Het doceren van kritisch denken. Lessen uit de cognitiewetenschap. For a map of the conclusions/lessons of the article in Dutch see here.

- Gelder, T. van, Bissett, M., Cumming, G., Cultivating Expertise in Informal Reasoning. Canadian Journal of Experimental Psychology, 2004, 58:2. Research on the importance of 'dedicated practice' for the development of critical thinking skills.

- Mara Harrell (Carnegie Mellon University) is doing research into the influence of argument mapping on the development of critical thinking skills in her own practice as a lecturer philosophy at Carnegie Mellon. See her list of publications here.

- Rider, Yanna; Thomason, Neil (2008): Cognitive and Pedaggogical Benefits of Argument Mapping: L.A.M.P. Guides The Way to Better Thinking . Knowledge Cartography, Advanced Information and Knowledge Processing. Springer-Verlag London.

- The Monash Critical Thinking Study, 2004-2007.

'Many people reason poorly, by almost any measure of reasoning. Although there is evidence that people can be taught to think critically, educators don't really know how. They don't know what works, what doesn't, or why. This report describes the Monash Critical Thinking Study - a three year project to investigate the effectiveness of a number of teaching methods for improving critical thinking.'

- Twardy, C., Argument Maps Improve Critical Thinking, 2004. Teaching Philosophy, 27:2.