Here is another kit that can be used to teach your kids Python. The CrowPi-L is a Raspberry Pi powered laptop with programming courses that teach users coding with a graphical interface. It has a 5000mAh battery built-in.
The CrowPi-L has a HDMI port, so you can work on two screens. It lets you insert two TF cards at the same time. It has a 11.6-inch IPS screen with 1366 x 768p. You can use its GPIO interface for complex projects. You can find out more about it here.