Keeping it in Proportion

Lesson Plan
Lesson Rubric
Lesson Powerpoint
Lesson Speadsheet

Author: Katie Fowler and Peter Turner
School District: Clarkson University
Subject: Scaling and area
Grade Range: 6-7
Duration/Time Required:

• Number of days: 1 or 2 (but can be adapted and extended)
• Length of period: 40 minutes

Standard:

• Content - Geometry (primary), Algebra, Measurement
• Process - Reasoning & Proof (primary)

Objective: Students will become familiar with the effect of scaling on areas and develop a reasoned approach to solving a given problem through a sequence of simpler experiences.
Review of basic area formulas
“Discover” that area scales like the square of distance.