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Radian Measure and the Unit Circle
Radian Measure
Grade Level:
11
Subject:
Trigonometry
Topic:
3.1 Radian Measure
Objective:
The students will be able to Define Radian Measure.
The students will be able to convert between Degrees and Radian measure.
The students will be able to find function values for angles in Radian measure.
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Reflection:
I used a blank circle to help students with the fractional break down of the circle. It did well in explaining the conversions of Degree to Radian Measure. Students demonstrated they understood the conversions and how the circle was broken down but what needed more emphasis was finding the exact values for each of the trigonometric functions. It seemed to be an area that students continued to show difficulties in finding.
Prep:
Use a blank Circle to teach students a fractional breakdown of a circle designed to lead students to the fractional representation of degree and that of Radian Measure.
Materials:
Text book pp.94-100 and a handout of a blank circle with lines of multiples of 30, 45 and 60 degrees.