Each robot in this series focuses on a different type of sensor and reaction. A 24" x 24" double-sided chart includes full-color instructions on one side, and robot activities to try on the other. Building is simple: place the chassis on the chart and follow the detailed instructions to complete the robot. The core of the robots - simple computer modules - can also be examined by students to try and understand their functionality. Once finished, put in two AA batteries (not included) and start testing! The included activity chart provides a wealth of learning material, and of course, any young scientist can think of other fun tests to try out on the robots. Winner of the 2017 Top Toy and Creative Play of the Year award from Creative Child Magazine.