math

• Interactive Coordinate Plane

  Drag a point around the Cartesian grid to read its (x, y) coordinates and quadrant, snap to whole numbers, and reveal its reflections across the x-axis, y-axis, and origin.

• Interactive Multiplication Chart

  Hover or arrow-key across a 12×12 multiplication chart to light up any times-table fact, with an area model that shows why a × b is a rectangle of that many squares.

• Interactive Unit Circle

  Drag a point around the unit circle to see the angle in degrees and radians, plus sine, cosine, and tangent — with exact values at common angles like 30°, 45°, and 60°.