Students follow the online build instructions for the Lego Spike Prime build. Once the hand is build, it's a good tip to move the gears manually, because students have a tendency to "lock it up" with an incorrect build. Once the robo hand moves freely with the gears, they will need to code using the programming blocks. I instruct students, they need to use programming blocks to open and close "at will", so it has nothing to do with "timing". (using the arrow keys on the hub is best) The challeng