Comparison/ Contrast
     One of the most basic and powerful forms of analysis in any discipline is comparison.  Ask students to complete the visual concept map below in a science, social science, history or an English class to compare, for example, the hero/villain, vertebrate/invertebrate, democracy/dictatorship, etc.  Generally speaking, this type of exercise could be used with students gathering information, or those at the foundational level of Wolcott & Lynch's developmental problem solving process.
 
  • Have students work in groups to brainstorm other similarities and differences between the two objects, events or persons. Then encourage the group members to use alternate sources (library databases, other texts, MERLOT sites, etc.) to search for other similarities and differences.
  • Once they have located information, students often overlook inconsistencies or conflicts within and among their sources. Their searches typically produce a loosely-connected cluster of articles of varying relevance and contrasting opinions (Brem & Boyes, 2000).
  • Strengthen their inquiries by asking group members to detect conflicts between articles and explicitly compare the positions of their various sources by completing graphic organizers (concept maps) (Brem & Boyes, 2000).
  • Ask group members to evaluate the arguments presented in their concept maps.  If their maps show a dense web of supporting evidence, they have a strong argument for accepting a claim, whereas a dense web of attacks would give them ample reason to reject it (Brem & Boyes, 2000).


Brem, Sarah, K. & Andrea J. Boyes (2000). Using critical thinking to conduct effective searches of online resources. Practical Assessment, Research & Evaluation, 7(7).

concept map of compare/contrast
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last updated March 2002