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E.P.S.E Problem Solving Model

E.P.S.E Problem Solving Model. E xplore P lan S olve E xamine. E.P.S.E Problem Solving Model. EXAMPLE!!. E xplore – Fact Finding. Read the whole problem carefully. Reread if necessary. What facts do you know? (List them.).

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E.P.S.E Problem Solving Model

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  1. E.P.S.EProblem Solving Model Explore Plan Solve Examine

  2. E.P.S.EProblem Solving Model EXAMPLE!!

  3. Explore– Fact Finding • Read the whole problem • carefully. Reread if necessary. • What facts do you know? • (List them.) 3. What do you need to find out? (Write the question.)

  4. Plan – How will I solve this problem? 1. Explain what strategy or strategies you will use to solve the problem without using numbers or number words. 2. Estimate when appropriate using your strategy. (You may use numbers here.)

  5. Strategies • Find a PatternExample • Make a TableExample • Work BackwardsExample • Guess and CheckExample • Draw a PictureExample • Make a ListExample • Write a Number SentenceExample • Use Logical Reasoning

  6. Solve– Find the answer • Use your plan to find the answer. • Show all your work. 3. Rewrite the question (as a sentence.) using the answer. 4. Circle the answer in the sentence.

  7. Examine – show the problem is reasonable 1. Did you answer the right question(s)? 2. Does my answer make sense? • Compare the estimate to your answer • reverse the operation(s)/solve backwards • use common sense!

  8. E.P.S.EProblem Solving Model • Now let’s practice!!  • Take a sheet or use spiral for notes  • Draw 4 quadrants Like this

  9. The Farells want to buy a VCR that costs $460. They plan to make a down payment of $100 and pay the rest in eight equal payments. What will be the amount of each payment? • Use the EPSE model to solve the following word problem:

  10. Strategy: Facts: VCR cost $460; make down payment of $100; pay rest in 8 equal payments Subtract down payment from the cost; then divide into equal payments Estimate: (when appropriate) Need to find: What will be the amount of each payment? ($500 – $100) ÷ 8 = $50 Did I answer the right question? Show work: yes 460 – 100 = 360 Compare actual answer & estimate 360 ÷ 8 = 45 Actual: $45 Estimate: $50 Word sentence: Does my answer make sense? The amount of each payment will be $45. Yes, because $45 x 8 = $360 and $360 + $100 = $460 and that’s how much the VCR cost.

  11. Class Work/Homework Pg. 41 #1-21 all, Brain Game #5, 8, 9, 15, 21 You must set up the 4 step problem solving grid on your paper and select a different strategy to solve each of the problem.

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