Tuesday, July 24, 2007

chapter 12 exerzise pg 348

Deductive reasoning is used to some degree in all problem solving. There are some problems that rely on very little besides deductive reasoning to arrive at a solution. We often call these "logical reasoning" problems and they must be worked through piece by piece to get to an answer. Frequently, these problems require little or no calculation to solve. Many people find it helpful to make a chart or diagram to keep track of solution parts as they are worked out.
How do you use deductive reasoning?
Decide exactly what it is you are trying to find out.
Identify all information you have available in the problem.
Design a way to record information you have as well as interrelationships between pieces of information.
Record all available information and use it to fill in blanks.
Look back to ensure each conclusion you make is justified based on the information you have.

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