Watch this video if you struggle with how to teach graphing the sine and cosine functions.

I will show you how to graph a specific cosine function step by step.

This technique works with both sine and cosine functions and works with all transformations.

After trying a few different ways to teach this topic over the years, this particular technique has been very successful for my students. Your students will like this, too!

If you want a free copy of the PowerPoint presentation that I use to teach this lesson, scroll to the bottom of this page. Here's the link to the trig graph paper Here's the link to a resource that I use with my students Check out my Facebook group for Algebra 2, Precalculus, and Calculus teachers