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In this math lesson, learners use slices of bread and geoboards to explore several ways to divide a rectangle in half. Learners also identify equivalent fractions that represent one-half.
- 10 to 30 minutes
- 1 to 2 hours
- $5 - $10 per group of students
- Ages 6 - 11
- Activity, Lesson/Lesson Plan
- English
Quick Guide
Materials List (per group of students)
- Loaf of bread
- Knife
- 12-15 sheets of geodot paper (laminated if possible)
- Marker
- Geoboards
- Rubber bands
- Activity Sheets: Geodots I
- Activity Sheets: Geodots II
- Ribbon (several yards depending on tasks)
- Envelopes with task cards
- Spinner marked with 5 equal areas: 1/2, 1/3, 1/4, 1/6, and 1/8
- 4 whole paper plates
- Paper plate pieces (Use Activity Sheets: “Pizza Pieces” as a template to make four 1/2 pieces, fifteen 1/4 pieces, sixteen 1/3 pieces, thirty 1/8 pieces, and twenty 1/6 pieces)
- Activity Sheet: Ribbon Factory
Subjects
-
Mathematics
-
Geometry
- Plane Geometry
-
Measurement
- Circles
-
Number and Operations
- Fractions
- Representation
-
Geometry
-
The Nature of Technology
-
The Design Process
- Problem Solving
-
The Design Process
Informal Categories
- Food and Cooking
- Games
Audience
To use this activity, learners need to:
- see
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, PBS, 2012
Funding Source:
- US Department of Education