The Grass is Always Greener

The lesson introduces area of sectors of circles then uses the areas of circles and sectors to approximate area of 2-D figures. The lesson culminates in using the area of circles and sectors of circles as spray patterns in the design of a sprinkler system between a house and the perimeter of the yard (2-D figure).
Resource ID#: 49299 Type: Lesson Plan
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General Information

Subject(s): Mathematics
Grade Level(s): 9
Intended Audience: Educators educators
Suggested Technology: Graphing Calculators, Computer for Presenter, Computers for Students, Internet Connection, LCD Projector
Instructional Time: 1 Hour(s) 30 Minute(s)
Keywords: radius, diameter, circle, circumference, area, arc, arc measure, arc length, sector, percentage
Instructional Component Type(s): Lesson Plan,  Worksheet,  Problem-Solving Task,  Assessment,  Formative Assessment
Instructional Design Framework(s): Structured Inquiry (Level 2), Guided Inquiry (Level 3), Learning Cycle (e.g., 5E), Cooperative Learning
Resource Collection: CPALMS Lesson Plan Development Initiative

Aligned Standards

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