With the Wheels & Axles module, students can add the wonder of motion to their structures. Once they've created their simple moving machines, students can explore STEAM concepts as they measure distance and speed, or experiment with the impact of variable incline. Wheels & Axles is a hands-on, engaging way to integrate the skills and concepts of math, science, engineering and design thinking. A sturdy, lightweight container keeps about 200 pieces organized. A super value with access to over 80 online lessons and activities provided. Requires Structures Classroom Module. Ages 4 and up.