I had flipped my classroom this year and this was a nice addition. I wanted to get my students' feedback on how they liked the unit. The videos were difficult for them so we discussed them to figure out the mystery which was a good thing- I liked that it challenged them more. We just presented the projects on their inventions and they blew me away. I was hesitant to do this and they BLEW. IT. AWAY. Here are some examples of their projects