First, we watched these two videos: Catapults are Levers and Two Ways to Build Your Own Catapult. We got to decide if we wanted to work alone or with a partner, and whether we wanted to try making the basic design or the more complex design. Then, we got building! Testing after we built was the most fun part...Ms Elder gave us cups for target practice!
Here are some thoughts after building:
"Catapults are a simple machine: a lever." ~ Ina
"I think we did this activity because it relates to simple machines. It also relates to how hard it is to pull something down to make something fly upwards." ~ Owen
"I found out that the further you put the fulcrum to the load, the further it flies." ~ Nikita
"I learned that simple machines may look simple to build but really some of them are very difficult." ~ Abigail
"I think we did this activity because we're building an amusement park ride. Maybe it has something to do with that." ~ Bianca
"I think we did this activity because we have different thoughts on what to build, different thoughts on how to do it, and to show how everyone is different." ~ Jaxton
"I enjoyed how we got to experiment. There were two different ways you could build the catapult so we got to choose our design." ~ Sophia