Trigonometry

Sine and Cosine Graphs with the Unit Circle	This was a graph I made trying to help students see the connection between the unit circle and the sine and cosine graphs.
Transformation on a circle and cosine	I made some slight modifications to this calculator. It shows the relationship between key reference angles on the circle and the transformed graph of y=Acos(Bx+C).
Visible Proportion of the Moon	This is just a quick worksheet I made based on an activity from Kate Nowak. It is focused on an attempt to model the proportion of the moon that is visible on any night for a given month.

 

 

 

 

This content was created for the 2017 IMACC Conference.