Create a carnival game, build a bridge, or make a structure with moving parts using this cardboard construction kit. Combining straws, washers, and cardboard provides an engaging exploration of materials science. Teachers can encourage trial and error as students build, reinforcing problem-solving skills when they encounter an issue in designs. Custom-designed tools make handling cardboard easy. There are enough supplies to get up to 50 students involved in activities. Included Pocketful of Ideas provides students with 90 building challenges. Connectors and straws are made of plastic and designed to be used multiple times, allowing students to take their creations apart and reuse pieces on future projects. Colors vary. Recommended for Elementary and up.