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Lesson 2.7 Try, Test, and Revise. 4 Steps to Problem Solving. _______________________ _______________________ _______________________ _______________________. Conjecture. We need to remember the meaning of this word:

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## Lesson 2.7 Try, Test, and Revise

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**4 Steps to Problem Solving**• _______________________ • _______________________ • _______________________ • _______________________**Conjecture**• We need to remember the meaning of this word: A conjecture is a ________________ ____________. It is then __________ ______________ to be more accurate. Possibly, it may be shown _________.**Let’s look at a problem.**On vacation, your family spent ______ driving ________ across a state. Part of the time you drove on a scenic state highway at _____________. The rest of the time you drove on an interstate at ______________. How long did you drive on each type of highway?**Step 1: Understand the problem**• ___________________________ • ___________________________ • ___________________________**Step 4: Check the answer.**• Think about this: if the whole trip was taken at the higher speed, that would be _________________ ___________. We want just a bit less…so _______________ seems reasonable.**Tonight’s Assignment**• GPS Worksheet 2.7

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