This is the fourth in a series of major trigonometry topics, adapted from lessons that I wrote for homeschoolers. There is a great deal of detail and time spent on the sine function, with the same ideas then applied to the cosine and tangent functions. A section on how to work through an application is also included. There is an optional section on graphing combined functions. There are many step-by-step examples and problem solutions. The content can easily be 5 lessons if time is available.Download the preview to see suggestions and complete content for this product.