Modular Robotics, makers of Cubelets robot blocks, has acquired Dexter Industries, creators of GoPiGo and GiggleBot. The two companies said they “have united with plans to continue creating robotic teaching tools that inspire students to explore STEM, computational thinking, and other big ideas.” Collectively, Cubelets, GoPiGo, and GiggleBot are used in more than 15,000 educational…