Here is another educational robot kit with modular design to get your children familiar with technology. The Krypton 3 Modular Robot Kit has 365 parts with sensors, actuators, and everything you need to get started. It has a 6 attachable brick system and 4 programming apps.
Kids can program the robot using a visual interface, flowchart programming app, or Scratch. The kit includes Gyro, Compass, Microphone, and Position sensors. It also comes with 2 small motors and loudspeakers.