Robots

Edison
K-6
Dexter Industries
4-12
Bee-Bot
PreK-1
Easy to use, 3 levels programming; blocky to python. Lego pieces can snap on. Does not turn in degrees only seconds. Easy to build Raspberry Pi robot kits  . Program in Scratch, Python, and more. Excellent teacher resources, including lesson plans, and curriculum. Great way to introduce programming screen free. Teach distance, direction, estimation, problem solving and more using the concepts of Logo programming.
Blue-Bot
1-3
Screen free programming, same features as Bee-Bot but also can connect via Blue-Tooth to a hands on tactile reader, or Logo programming language.
Lego Motors
Pre-K-12
Get your lego pieces moving and start creating robots  with these simple, easy to use motors and switch.