There's an apocryphal story that René Descartes conceived of the Coordinate Plane that bears his name as he was laying in bed watching a fly crawl across his ceiling and wondering how he would describe its position mathematically. He first explained his system in 1637, and students have struggled with it ever since. But, no longer! TeacherMade has a new question type that will allow you to give your students meaningful and rewarding practice plotting ordered pairs and lines on the Cartesian plane! It's powerful and flexible, and like nearly all the TeacherMade items, is AUTO-SCORED so that you don't have to do the grading!