The Problem Solving and Communication Activity Series Use Logical Reasoning
Use Logical Reasoning
Logical reasoning is at the heart of so many math problems, so it can be hard to break it out as its own separate strategy. But we find that the guiding questions of, "what must be true? what might be true? what can't be true?" are useful for doing logical reasoning.
We also present some chains of questions for following deductions or searching for contradictions. Organizing and recording what depends on what or what contradicts what are really important parts of coming up with a good logical argument.
The Strategy Examples documents linked from these problems contain examples of what students could do with the activities. You need a Class Membership or higher to access Library problems.
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