1. Rob Schupbach Problem #8
CRIN E07: Elementary Math Curriculum and Instruction
Dr. Margie Mason/Ms. Rachael Cofer
November 2, 2011
Topic: Probability and Statistics: Applications of Data and Chance—Grade 3
(SOL 3.17, 3.18)
Expected Heuristics: Use a picture; Make a table/chart; Guess & Check
Mystery Measure
Jayla, Travone, Connor, and Sandy play a guessing game.
Each person describes one of the objects below.
carrot football field wheelbarrow pencil
Jayla: “Travone and Travone: “Neither Sandy
I are each thinking nor I are thinking about
of something about food.”
7 inches long.”
Connor: “I'm Sandy: “My object can be
thinking of measured in inches, feet, or
something 100 yards. It is longer than
yards long.” Travone's object but shorter
than Connor's object.”
What is each person describing?

2. Rob Schupbach Problem #8
CRIN E07: Elementary Math Curriculum and Instruction
Dr. Margie Mason/Ms. Rachael Cofer
November 2, 2011
Answer:
Jayla: carrot
Travone: pencil
Connor: football field
Sandy: wheelbarrow
Complete Solutions:
1. Both a carrot and a pencil could be about 7 inches long.
Both Jayla and Travone are thinking of objects about 7 inches long.
2. Jayla's object must be the carrot. Since Travone is not thinking of a food, Jayla
must have the 7-inch object that is food.
3. Travone's object must be the pencil. It is 7 inches long but is not food.
4. A football field is very big. It is probably 100 yards long. That must be Connor's
object.
5. The only object left is the wheelbarrow. Check that the clue fits the wheelbarrow.
Yes, a wheelbarrow is bigger than a pencil but shorter than a football field.
Houghton Mifflin Math. (2011). Retrieved November 2, 2011, from
http://www.eduplace.com/kids/mw/g_5.html