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In this activity, learners will predict the size of a giant scale model of a comb or other rectangular object, then make one. If you tripled the size of a dollar bill, could you sit on it? If you tripled the size of your notebook, could you lie down on it? Learners choose a rectangular object they think they could fit on if it were three times larger. They create a scale model of the object at three times the length and width. As a more challenging variation, they create a scale model ten times larger. [Activity is publicly available through a web crawler capture on Archive.org.]
- 5 to 10 minutes
- 45 to 60 minutes
- 1 cent - $1 per group of students
- Ages 6 - 14
- Activity, Exhibit, Model
- English
Quick Guide
Materials List (per group of students)
- rectangular, flat objects (e.g., dollar, stick of gum, post-it note, playing card)
- Rulers
- large sheets of paper, if possible, with 1/2” or larger grid squares
- Pencils, markers, scissors
- scrap paper
Subjects
-
Mathematics
-
Algebra
- Variables and Expressions
-
Geometry
- Plane Geometry
-
Measurement
- Units of Measurement
- Size and Scale
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Number and Operations
- Operations
- Representation
-
Algebra
-
The Nature of Technology
- The Design Process
-
The Nature of Science
-
The Scientific Process
- Asking Questions
-
The Scientific Process
Informal Categories
- Arts and Crafts
- Model Building
Audience
To use this activity, learners need to:
- see
Learning styles supported:
- Involves teamwork and communication skills
- Involves hands-on or lab activities
Other
Access Rights:
- Free access
By:
Source Collection
- Mixing in Math
Rights:
Funding Source:
- NSF, ESI-0406675 and DRL-0713537