2. Pamela Lemley ECE8814/05

3. Table of Contents Introduction Introduction Math Mystery Case Math Mystery Case Ice Cream Reward Ice Cream Reward Video Video Fun Facts Sheet Fun Facts Sheet Fun with Graphs Fun with Graphs Pie Chart Pie Chart Bar Graph Bar Graph Georgia Performance Standards Georgia Performance Standards

4. Are You Ready? We have a mystery to solve!

5. Here’s the case… I stopped at Bruster’s for a half price banana split when I overheard a little boy bragging to his friends.

6. I knew right away it was Dennis the Dirty Dealer, who makes unfair deals with innocent people. He once traded a crummy pair of old sneakers for a brand-new pair of Air Jordans! He could trade a calculator for a laptop computer!

7. I was outraged at what Dennis was saying to his friends. “Friends, step right up! Order the biggest triple scoop sundaes on the menu. The ice cream’s on me today.” “Hey, Dennis,” asked one of his friends. “Where did you get all the cash?” “From Amy, my silly little sister,” Dennis bragged. “She doesn’t know much about money, so I’ve been making deals with her every week for a month.”

8. I couldn’t believe what I was hearing!

9. Continue listening… You may want to take some notes! “The first week, I traded 5 pennies for 1 quarter. I told her that it was a good deal because 5 is more than 1!” Click here to go to end of problem

10. “The second week, I told Amy that bigger coins were worth more than smaller ones.” Dennis proudly crossed his arms in front of him. “So I traded 3 nickels for 3 dimes.”

11. “On the third week, I tried something different,” Dennis bragged. “I told Amy that shiny coins were better than dirty paper money. So she gave me 1 dollar for 1 quarter!”

12. “But this week I made the dirtiest deal ever,” Dennis winked. “I told Amy that crisp new money was worth more than crumpled old money. I traded 2 new dollar bills for an old 5- dollar bill.”

13. Super Sleuths, I was so angry! I couldn’t listen to another word. “Young man, you ought to be ashamed of yourself – stealing from your little sister!” I yelled. “You are the worst kind of thief!” I’m just a little girl!

14. “Oh no, it’s the math detective!” exclaimed Dennis. “My dirty dealings have been discovered!” Dennis made for the door, but I swiftly grabbed him by the ear. “Come back here. You pay Amy back at once or I’ll tell your parents about your dirty little deals!”

15. This is where you come into the picture… How much money should Dennis the Dirty Dealer return to his little sister Amy? Hurry Detectives, I don’t want to have to deal with Dennis any longer than I have to! Click here to go to the beginning of the problem

16. Let’s Review! Dennis traded… For… 5 Pennies 1 Quarter 3 Nickels 3 Dimes 1 Quarter 1 Dollar 2 Dollars 5 Dollars

17. How much did Dennis gain from Amy? 5 pennies for a quarter 20 cent gain 1 quarter for 1 dollar 75 cent gain 3 nickels for 3 dimes 15 cent gain 2 dollars for 5 dollars 3 dollar gain Start Here! Add up all the gains…quickly… Dennis is trying to get away!

18. Dennis owes Amy how much? $4.10

19. Congratulations Detectives!!! You solved another math mystery!!!

20. You’re not finished yet!!! My good friends at Bruster’s heard about the horrible thing that Dennis did to his sister. They told me that if I could find any detectives who could solve the case, they would give them FREE ICE CREAM!!!

21. Get Your Own!!! (Just for completing the fun facts!) Be Patient….Loading takes a moment!

22. HOWEVER… To obtain your free ice cream, you must have a certificate from me! This is what you need to do: Click on the following link (make sure internet is connected) Click on the following link (make sure internet is connected) Bruster’s Fun Facts Bruster’s Fun FactsBruster’s Fun FactsBruster’s Fun Facts Read the fun ice cream facts Read the fun ice cream facts Answer the questions on the activity sheet (located in the learning station bin) Answer the questions on the activity sheet (located in the learning station bin) Place completed sheet in the ready bin Place completed sheet in the ready bin There’s More!

23. More Ice Cream Fun… Which flavor is best liked?___________________ What is the percentage of difference between 1 st place and 5 th place? ________________________ Check your answers with a partner!

24. Is Ice Cream the Favorite Snack? How do you know? Share your answer with your partner.

25. Georgia Performance Standards 5 th Grade M.5.4.1 Graphing: Interpret/Conclusion The learner will be able to read, interpret, compare, and draw conclusions from charts, tables, and graphs (e.g., pictographs, circle graphs, and bar graphs). M.5.4.1 Graphing: Interpret/Conclusion The learner will be able to read, interpret, compare, and draw conclusions from charts, tables, and graphs (e.g., pictographs, circle graphs, and bar graphs). M.5.10.6 Decimals: Add/Subtract The learner will be able to use models to add and subtract decimals through hundredths with and without regrouping. M.5.10.6 Decimals: Add/Subtract The learner will be able to use models to add and subtract decimals through hundredths with and without regrouping. LA.5.1.8 Critical Thinking: Reading Materials The learner will be able to demonstrate comprehension of a variety of text by using critical reading skills and strategies. LA.5.1.8 Critical Thinking: Reading Materials The learner will be able to demonstrate comprehension of a variety of text by using critical reading skills and strategies. LA.5.1.9 Directions: Written The learner will be able to understand and follow written instructions/directions. LA.5.1.9 Directions: Written The learner will be able to understand and follow written instructions/directions. LA.5.1.10 Selecting: Purpose/Variety The learner will be able to select a variety of sources to read for different purposes. LA.5.1.10 Selecting: Purpose/Variety The learner will be able to select a variety of sources to read for different purposes.

26. Tune in next week for another episode of.. Math Mysteries!