Illuminations: Euler Diagrams and Logic

This lesson focuses on using Euler diagrams to explore direct, indirect, and transitive reasoning.

It was adapted from the article “A Visual Approach to Deductive Reasoning” by Frances Van Dyke, which appeared in the September 1995 issue of the Mathematics Teacher journal.


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Deductive Reasoning & Logical Thinking
High School, Educator

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Illuminations (National Council of Teachers of Mathematics)

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