The 3 Basic Trig Functions: Sin, Cos, Tan

The Activity requires students to find the height of the classroom's door without the use of rulers or measuring tape.   The only thing they need to find the height is a mirror and themselves (their height).  This activity requires students to be able to use the trigonometric functions to find the height of the door.  This activity will require some critical thinking as well, to find the closest measurement of the height of the door.