Lesson 3.1: Repeat a Known Number of Times

A loop repeats a group of commands. A fixed-count loop is useful when the number of repeats is known before the loop begins.

If move forward by 1 appears inside repeat 4 times, the move runs four times. The loop body is the group of blocks held inside the repeat block. Commands connected after the loop run once after all repeats finish.

Count the repeated commands, not the loop block itself. A loop with two commands in its body and four repeats performs those body commands eight times in total.

Guided practice

Use one repeat block to move forward by 1 four times. Predict the final position and move count. Run, then use Step to count each movement.

Add a print block inside the loop and another after it. The inside message should appear four times. The outside message should appear once.

Change the repeat count to zero. A fixed-count loop with zero repeats skips its body. This is a valid boundary case and should not produce an error.

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