is just doing the movement forward.
crab walk backward is going backward with the bear movement.
crab walk sideways is getting in the bear walking post and moving sideways.
after you are sure of the movements you can change up the dice a bit. you can add speed and how many times they do the movement. you can get the number dice here.
if you don’t want to mess with the dice, you can always just print them and use them as a set of cards. mix them up and have them turn over the gross motor they will do. you can also mix in other of the gross motor dice as well! my 