http://blog.teacherspayteachers.com/why-project-based-learning-rule-your-school/What is Project-based Learning?
Project-based learning (PBL) is a teaching method where students gain and apply skills by working on a long project where they complete an in-depth inquiry into a specific topic or question. Like all teaching methods, it’s not standalone. It can be added to the teaching you are already doing in your classroom. PBL allows for more real world application and in-depth understanding of the concepts your students need to understand.