The latest installment in the award-winning Robotics Smart Machines line, this version focuses on motorized machines that make use of continuous tracks, also known as tank treads, to move themselves and other objects around. Models are controlled by programs and an ultrasound sensor, so in addition to constructing the machines, you’ll also learn how to use the included visual programming app on your tablet or smartphone to code the programs yourself! Once you understand how the technology works, you can build your own robots using the kit’s 197 building pieces and create your own programs in the programming app. Details: STEM robotics kit 197 pieces Includes 8 experiments Includes 60 page manual Requires 3 AA batteries (not included) Works with app on tablet or smartphone (iOS or Android) For ages 8 through 14