123Trig

All students can learn trigonometry

Trigonometry is probably the most useful branch of mathematics, it is used in designing and building just about everything. Trig. is the relations of the sides and angles of triangles. Once you know how to measure both the length of sides and the measure of angles, trig is the easy next step. The main trig function is tangent and it is just a fraction that represents slope. It is the opposite side over the adjacent side. When the angle gets larger the opposite side gets larger so the ratio gets larger. Three easy steps to learn Trig:

Step 1: Do the hands on measurement activities for the ruler and for the angles on the home page.

Step 2: Watch the videos below, do the triangle activities.

Step 3: Apply your new knowledge to real world triangle problems.