- You will need to provide several circular objects at this center.
- Have your students find the circumference and diameter of each object.
- They can record their information in a chart with the following sections:
- object
- diameter [d]
- circumference [C]
- C / d

- Have them look for a relationship among the computed values in the fourth column.
- They should come to the conclusion that the relationship between the circumference and the diameter of a circle is constant.
- Discuss the value of this ratio as pi.

- Tack Probability
- Discover the Explorers
- Alphabetizing Mania!
- What’s the Stamp Worth?
- Take for Granted
- Where Is This?
- Put the Story in Order
- Jacks
- The Mayflower Voyage
- Olympic Events from A to Z
- Food From Around the World
- Spin the Dreidel
- Tri-Angles
- Millennium Mural
- Discoverer of America?
- Object Observation
- Block Volume
- Paint a Picture with Words
- Re-tell A Story
- If You Could Be An Animal
- Balloon Rocket
- Twelves
- The Scariest Thing
- Seasons
- How Long Would It Take?
- Area of a Shamrock
- The Color Mix-Up
- Still Life
- What Weighs More?
- Word Association
- Famous Places Wall
- Tile Probability
- Who Is That?
- String Art
- Roses Are Pink, Your Feet Really Stink
- Determining Density
- Broken Ruler
- Story in a Bag
- Scariest Jack-O-Lantern Contest
- Popping Popcorn
- Spinner Probability
- Pumpkin Measurements
- Washer Weights
- Current Happenings in Science
- Dancin’ Raisins
- All About Columbus
- Patron Saint of Lovers
- Letter of Apology
- Flannel Board Phonics
- The Medal Winners

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