Monday, February 02, 2009
Intro to Calculus (Class 48)
Lesson Title
Circular Functions (2)
Overview
We will use the opener to compare solutions to Sangaku 9. Then students will take part in two activities concerning triangles. Finally students will have time to work on Workshop 13. A quiz is very possible on Friday focusing on the work we have been doing with radians and coterminal angles.
Textbook Sections
N/A
Vocabulary
radian
central angle
terminal side
circumference
rotation
Key Attitudes
Math is about using what you know to create something new.
Key Ideas
Given two points on the circumference of a circle, one of the points can be rotated around the center to match up with the other point in an infinite number of ways.
Key Skills
I can explain what a radian is.
I can give a mathematical reason for why radians are “better” than degrees.
I can find the location of a point on the circumference of a circle resulting from a rotation about the center of the circle using radians.
I can determine the quadrant that a point on the circumference of a circle will end up in as the result of a rotation about the center given in radian.
I can determine the measure of coterminal angles.
Turn-In (#47)
Homework 16: Finish it.
Sangaku 9
Handouts
Workshop 13
Assignment
Workshop 13 TBA
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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