Unit Circle and Tangent Graph by Andy Greasley

This example demonstrates the relationship between angle changes on the unit circle and the tangent function graph. It involves core math concepts like the unit circle, trigonometric functions, tangent function definition, and similarity transformation. Construction highlights the use of GeoGebra commands/objects such as Intersect, Point, Angle, Segment, and Slope. Suitable for high school mathematics teaching to understand the geometric origin and properties of the tangent function graph.