Find the location of enemy submarines with a sonar display that doubles as a polar coordinate system. Pupils find polar coordinates that would be the same location of plotted submarines. They then determine multiple polar coordinates that represent the same point.

Concepts

polar coordinates, polar form, coordinate pair, coordinate plane, submarines, sonar, radians

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Additional Tags

math

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Instructional Ideas

• Use as a prerequisite skill lesson for plotting complex numbers in polar form

Classroom Considerations

• The class should know how to convert degree measures to radian measures
• Requires signing up for a free account to access the interactive

Pros

• Includes hints for all of the problems
• The supplemental materials contains additional practice problems

Cons

• None

Common Core

HSN-CN.B.4 MP4 MP6