There are 12 symbols on this large grid, and scholars must record a location for each. They use the coordinate pair system which is made easier because every symbol is directly inside a square. Use this to introduce coordinate pair ordering, as the x-axis is labelled with letters and the y-axis is labelled with numbers. This difference will likely help youngsters differentiate between the two and see which one always goes first. There's an example to get them started. Consider extending this concept by playing an all-class game of Battleship!