School webteam: June 2021
The children in Pearl Class built a Pull-robot using the Lego WeDo kit and then they created simple programs to make the robot move. The challenge was to pull an object over a short distance. The children recognised that the plastic wheels did not grip the table with the thin plastic wheels. They hypothesised that adding the wider tyres with tread would help the robot to pull a heavier load over a longer distance.