I created this video overview of PBL for the teachers at my school. This year, 2015, we implemented a new program in the elementary school that uses this effective teaching approach. I also want to mention that the Kindergarten Driving Question was changed during the year. Instead we came up with, "How will you, as an engineer, create a Rube Goldberg machine?" It was still motivating and interesting, and required core knowledge, but also easier to understand and a little more open-ended.