1. Learning Target:Students will learn the 4-step problem solving plan to solve many kinds or problems.Students will learn a number of different problem solving strategies.

2. 4-STEP PROBLEM-SOLVING PLAN:(1) UNDERSTAND the Problem(2) Develop a PLAN(3) SOLVE the Problem(4) LOOK BACK

3. (1) UNDERSTAND the Problem
What do you know?
What do you need to find out?

4. (2) Develop a PLAN
Have you ever solved a similar problem?
What strategies can you use?
Estimate an answer.

5. (3) SOLVE the Problem
Do you need to try another strategy?
What is the solution?

6. (4) LOOK BACK
Did you answer the right question?
Does your answer make sense?

7. Kitty Litter
Kitty Litter had 9 people come to her party. Everyone there shook hands one time with every person. How many total handshakes were there at the party?

8. (1) UNDERSTAND the Problem
What do you know?
9 people came (10 total)
Everyone shook hands with each other
What do you need to find out?
Total number of handshakes

9. (2) Develop a PLAN
Have you ever solved a similar problem?
Not that I can remember
What strategies can you use?
Write a numerical equation
Estimate an answer.
A two digit number less than 90
( 9 X 10 = 90 but I know there are repeats)

10. (3) SOLVE the Problem
9+8+7+6+5+4+3+2+1 = 45
Do you need to try another strategy?
No, I feel confident about my answer
What is the solution?
45 handshakes

11. (4) LOOK BACK
Did you answer the right question?
Yes, I found the total handshakes
Does your answer make sense?
Yes, it is a two digit number less than 90

12. Now I want you to solve this exact same problem using a different strategy. Notice that you already have the solution so I want you to focus on is the process. It is just as important as the solution.Before I let you go lets generate a list of possible strategies you could use that you might have used in the past.

13. Strategies
Look for a Pattern
Guess and Check
Solve a simpler Problem
Draw a picture/use a model
Make an organized list/table
Work backward
Act it out/use objects
Use logical reasoning (if then)(hints/clues)
*Problem Solving Handbook pg. 761*

14. Can you recall the 4-step problem solving plan and the different problems solving strategies we talked about today?