standard_description: Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
problem_activity: Problem 1
Three different students solved the problem
$$ 232 \div 8$$
. Your teacher will assign you one of the strategies below. Explain what the student did and whether the strategy they used works. Be prepared to share your thinking.
| Student A            |https://d21royfkw9g4l6.cloudfront.net/ZoPLED891zSmYOWqanUdIv_ZMZYXA.png|  |https://d21royfkw9g4l6.cloudfront.net/ZoPLED891zSmYOWqanUdIv_ZMZYXA.png| image:: https://d21royfkw9g4l6.cloudfront.net/ZoPLED891zSmYOWqanUdIv_ZMZYXA.png |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Student B            |https://d21royfkw9g4l6.cloudfront.net/GjKY5qmrEGOwHjEfJMqaOe_IY0IDR.png|  |https://d21royfkw9g4l6.cloudfront.net/GjKY5qmrEGOwHjEfJMqaOe_IY0IDR.png| image:: https://d21royfkw9g4l6.cloudfront.net/GjKY5qmrEGOwHjEfJMqaOe_IY0IDR.png |
| Student C            |https://d21royfkw9g4l6.cloudfront.net/cu4zJFEkmogo8n93orpF2r_KS83E1.png|  |https://d21royfkw9g4l6.cloudfront.net/cu4zJFEkmogo8n93orpF2r_KS83E1.png| image:: https://d21royfkw9g4l6.cloudfront.net/cu4zJFEkmogo8n93orpF2r_KS83E1.png |
Problem 2
Solve.
| $$40\div4$$                        $$80\div4$$                        $$83\div4$$ | $$50\div5$$                        $$150\div5$$                        $$10\div5$$                        $$140\div5$$ | $$30\div3$$                        $$21\div3$$                        $$51\div3$$ |
|-----------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|


aligns: no