I think that the purpose of this challenge was to develop team work abilities and collaborate. Also, to create a catapult and to push our thinking. It is a connection to Ancient Greece, so we can what life there was like. The parts are firstly to plan and design the catapult, then gather the materials, build it, go threw the trials, and rework or improve. The complexities were; we had limited materials to work with, and not much time to improve our catapult. Lastly, we needed more research on physics and different view on how to build it.