Intro to Fractions
Divide and Shade
Parts to Whole
Objective: Students will learn to divide and shade 1/2, 1/3, 1/4.
Materials: 6-inch paper plates, scissors, crayons
- Read the children's picture book Gator Pie, by Louise Mathews.
- Discuss the story.
- Tell students that they are going to make a Gator Pie.
- Distribute two paper plates to each student.
- Instruct students to color one plate completely on one side.
- Students fold the other plate in half.
- Fold the plate in half again so that the plate is divided into fourths.
- Open the folded plate and place it on top of the shaded plate.
- Start at the edge of the plate; cut on one of the four creases; stop
cutting when you reach the center.
- Insert the two plates at the cuts and rotate.
- Read the story again.
- Have students use plates to demonstrate the fractions in the story.
See Ms. Moore's demonstration of the plate manipulative.
Technology Activity: Students will use the applet, Parts of a Whole, from the National Library of Virtual Mathematics Manipulatives. Depending on the availability of computers for your students, this activity could be done individually, with partners, in groups, or as a class.
Have students go to Shading Fractions.
Paper/Pencil Activity: Depending on the level of your students, you can have them complete this activity individually or with assistance:
- Provide a worksheet with six circles.
- Students rotate their plates.
- Color one circle to show the same fraction that the plate manipulative is showing.
- Repeat 5 more times.
Louise Mathews (New York: Dodd, Mead, 1979)