This five-day project will make great connections between the real world and quadratic functions. In small groups, the students will build a catapult (hobby shops usually have small wooden ones pretty cheap) and launch objects. Before the launch, the students will make conjectures about what they believe the objects will do. The students will record their launch data, create quadratic equations using their data, and then they will graph their data on a poster. The students will then analyze their thoughts through journals everyday and evaluate their learning and the project on the last day. In the past my students have really enjoyed this project. It’s great for learning and even created a very positive atmosphere in my classroom as they discussed each teams outcomes and catapults.