Provide some sample line graphs along with the coordinate graphs your students are working on. Point out that a line graph does use some of the same ideas as a coordinate graph, such as showing the relationship between two different sets of numbers with points connected by lines. Ordered pairs can be very confusing for students. It's essential to reinforce the importance of the order of the coordinates. The best way to answer this question is to give lots of examples, showing how reversed pairs don't mean the same thing.
Maps are useful here as well.
Use a map and ask students to find a town in a given square of the map. Then reverse the coordinates and ask the students if the same town is at those coordinates. Click here to add your suggestions. All Rights Reserved.