Mathematics - Trigonometry - Advanced - Unit circle - Unit Circle Explorer
Show a circle of radius 1 centered at origin. A point P moves along the circle (controlled by angle slider 0°-360°). As P moves: x-coordinate = cosθ, y-coordinate = sinθ. Display updates showing angle, coordinates, and trig values. The student sees: at 0°: (1,0), at 90°: (0,1), at 180°: (-1,0), at 2