This program begins to introduce you to the coordinates system in scratch in a little more detail. This program and the rest in this workshop are a great resource for teachers who are trying to get this concept across to students.
This is a remake of a Ready Steady Code program by Seamus O'Neill. The original program was called "Positioning a sprite on a 20px grid.". I made this version just to update to Scratch 3. Seamus is a good friend of mine and a great scratch coder. You can check out more of Seamus's work at his website readysteadycode.ie.