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An Explorer lesson plan. Download a Claris Works or Acrobat file from the Explorer site. Also information on grades, availability, description, curriculum, process skills, author, and publisher.

Author:Joanne Caniglia

Grade Level:Kindergarten

Description:Students investigate oranges to find out if oranges have the same number of slices.They also investigate the fractional part of an orange.

Objectives:To study the parts of a whole and compare the number of slices in an orange.

Resources/Materials:Oranges, paper towels,Each Orange Has Eight Slices, Paul Giganti Jr.

Activities/Procedures:Children work in groups. Distribute all the materials. Students will answer the following questions:

- When you peel the orange, how many pieces do you peel off? Which one is larger and which one is smaller?
- How many sections does your orange have?
- Do you have an even number or odd number of oranges?
- Bon Appetit!
- Encourage children to predict the answer to the question, do all oranges have the same number of slices?
Read the story,

Each Orange Has Eight Slices.

Evaluation:Students will record their results on a large graph. They will orally discuss their answers to the questions.

Followup Activities (optional):Children may answer questions that involve more thought:

- How do seedless oranges compare with oranges with seeds?
- Do tangerines have more sections?
- Do oranges that are big have more slices?

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