Seconds graders are hard at work discovering how simple machines work. In this project, we look at many examples how an axel rotates and brainstormed how we could build one. The class arrived at using cardboard, straws, and skewers we could probably make something that could spin freely. Over the course of the next few weeks, we worked on designing, redesigning and testing our recycled material vehicles.
Some of the interesting things that came out of this lesson were the limitations of our materials. We faced many challenges with how to get wheels that are round, how to get the wheels mounted perfectly in the center of the tire, and making two or more axles align so that the vehicle would steer straight. All of these were great conversation points and each one of these pushed these second-grade designers to look for new answers. To conclude this lesson we just had to perform a downhill race to compete for distance.