Where we are in space and time is given by coordinates. We think of movement on a flat plane. Position, distance, speed, acceleration and time are all connected by Newton's laws of motion.
Prior Knowledge & Skills
We need to have a grasp of measurement and numbers to put coordinates into context. A sense of direction is also useful and one gender is not necessarily better than the other. A feel for movement and rotation also helps. An introductory knowledge of 2D shapes helps.
Often starting with a single axis like the number line, we move to perpendicular axes to define position. Coordinates can be given in different ways, using X and Y, or distance and angle. Relative position rather than from an absolute origin suggests directional movement and vectors. Boundaries with graphs and equations begin to blur. Relative distance can be calculated using Pythagoras.
Our GPS (Global Positioning System) identifies our position on the world's surface. In our digital life each pixel holds a 2D coordinate to give where it is. Distances between points or locations can be calculated and allow us to plan and design.
Get an idea of 2D position from this PowerPoint: