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An Investigation Into Precalculus Students' Conceptions of Angle Measure


What follows in this report is a description of an approach to trigonometry intended to promote coherent student trigonometric understandings by developing foundational understandings of angle measure. This report also describes findings from an
investigation into student conceptions of angle measure in the setting of an instructional sequence whose design was based on the described approach to angle measure. This investigation consisted of a teaching experiment that included multiple individual interviews and three teaching sessions with subjects from the undergraduate precalculus level. Through the use of a teaching experiment and individual interviews, insights were gained into students' developing images of angle measure.


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