The notes that come with this graphic provide detailed steps for teaching the vocabulary of "hypotenuse," "opposite" and "adjacent" sides in right triangles. This vocabulary provides the basis for the rest of the notes about trig ratio definitions (sine, cosine, and tangent). The techniques are designed for visual and kinesthetic learners. This method easily shows why the sine of one acute angle is equal to the cosine of the complementary angle.
There is one page of notes and six pages of graphics that can be put into a presentation or made into transparencies.