Program the Paddock

The farmer's tablet beeped. "The little robot tractor needs to reach the hay shed," said Suzy.

"But it only moves when we give it steps," said Spike.

Little Thunder looked at the big arrow blocks. "Forward, turn left, turn right."

They counted the squares. Three forward. Turn right. Two forward.

Suzy tapped the blocks in order and pressed go. The tractor rolled three squares, turned right and stopped next to a puddle.

"Oops," said Little Thunder. "It needed one more step."

"That's a bug," said Spike. "We just fix it." They added one more forward block. The tractor reached the shed!

Next the drone needed to fly around the paddock. "Forward, turn, forward, turn, four times," said Suzy.

"That's a lot of blocks," said Little Thunder.

"Use a loop," said Spike. "Repeat four times: forward, turn."

The drone zoomed in a perfect square.

Little Thunder grinned. "Now can I program you two to fetch my ball?"

"We don't need code for that," laughed Suzy.