While they themselves may be in constant motion, getting middle school students to really understand the motion shown in distance/time graphs can often be a challenge—but a challenge that must be taken on! In virtually every listing of national and state science standards for middle school students, the concept of graphically representing motion is included. In the lesson described here, students try to walk along a line marked with distance measurements so that their movement mirrors a given distance/time graph. Depending on the length of the class period, the lesson can be completed in one or two days.