Robotics Smart Machines: Tracks & Treads circus arts Stored in a decorative box

Stored in a decorative box shaped like Bob the Robot

which features a vast array of Halloween-themed books and caters especially to Halloween characters

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Six-Part Harmony

Robotics Smart Machines: Tracks & Treads circus arts Stored in a decorative boxThe 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, youll also learn how to use the included visual programming app on your tablet or smartphone to code the programs yourself!