A vector graphic is not based on pixels, but on mathematical formulas that define lines, curves, and geometric shapes. This allows the graphic to be scaled as required without any loss of quality.

National 5 Maths Geometric skills learning ... Determine the gradient of a straight line. ... A vector describes a movement from one point to another. 2D vectors are added from nose to tail ...

GCSE Maths Geometry and measure learning resources for adults, ... lines and polygons ... A vector quantity has both size and direction.

Is it just a geometry teaching tool? Kig would be interesting if it were only for teaching geometry, but it can be used for much more. I can easily see how to use Kig to teach algebra, geometry, ...