0:00:00.162,0:00:02.845
Computers are really good at repeating actions.

0:00:03.052,0:00:07.742
You can count to ten, twenty ore one hundred...

0:00:07.742,0:00:11.422
But a computer can count to a billion or even a trillion.

0:00:11.422,0:00:14.681
It won't get bored and it will only take a few seconds.

0:00:15.446,0:00:22.107
Where it's countingor drawing or anything, [br]Computer can repeat things hundreds or even billions of times.

0:00:22.282,0:00:25.895
In programming, we call this a loop.

0:00:25.981,0:00:30.065
A loop is how you repeat your code over and over again.

0:00:30.190,0:00:35.761
For the next puzzle,[br]your goal is to help Anna to create a square with the repeat block.

0:00:35.855,0:00:42.822
Any blocks you put inside a repeat block, [br]will be repeated in sequence, as many times as you want.

0:00:42.977,0:00:48.196
To draw a square, you can use the "move forward" and "turn" block 4 times.

0:00:48.281,0:00:58.114
The easier way is to tell the computer to move forward and turn by 90 degrees once [br]and then tell the computer to repeat these actions four times.

0:00:59.064,0:01:04.414
To do that, you need to place the move forward and the turn right in a repeat block.

0:01:04.414,0:01:11.341
Remember, you can change the number in the repeat-block to anything, and it will repeat the actions in the block that many times.