Students are working on figuring out just what engineering is. As part of this task students had a paper tower challenge that introduced the idea of constraints (limitations or restrictions). Students were given material constraints (paper and masking tape of standard dimensions), time constraints (30 minutes to build), and budget constraints (unlimited budget, but the best design meets the requirements for the lowest cost). Students were challenged to use the engineering design process to build a 12" tower that could hold a text book for at least 30 seconds!