Courses
Coordinate Geometry
Choose a component
Each component is a short guided lesson. Pick the idea you want to learn.
C1
Where exactly?
Pin down a dot, a desk and a street crossing with two numbers in order.
C2
The coordinate plane
Turn a number line upright to build the axes, the origin and four quadrants.
C3
Reading coordinates
Walk from O to read any point's address, its signs, and points on the axes.
C4
Plotting points
Plot points yourself, join them into pictures, and map Reiaan's room.
C5
Distance between two points
Count along a line, or make a right triangle to measure across a slant.