This teaching unit is designed to help students in grades 5 to 8 explore the concepts of measurement, ratios, and graphing in the context of designing a dragster. The units in the series have been developed to enhance and enrich mathematics, science, and technology education and to accommodate different teaching and learning styles. Each unit consists of background notes for the teacher, a list of teacher resources, and two activities, one of which is Web-based, complete with blackline masters. Also included are suggestions for extensions to the problems and their relationships to national mathematics, science, and technology standards. In this activity, students work in groups to construct a dragster and propulsion system using common household supplies. (MM)