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What Is a Loop?
A LOOP tells the computer to repeat something multiple times. Instead of writing the same instruction 10 times, you write it ONCE and say 'repeat 10 times.' That saves SO much work!
Without loops: STEP FORWARD, STEP FORWARD, STEP FORWARD, STEP FORWARD, STEP FORWARD. (5 lines)
With a loop: REPEAT 5 TIMES: STEP FORWARD. (1 line!)
Loops are everywhere in real life: A washing machine LOOPS through wash, rinse, spin. Your heart LOOPS its beat 100,000 times a day. Seasons LOOP through spring, summer, fall, winter. Songs have choruses that LOOP.
Programmers use loops constantly. A game that checks 60 times per second whether you pressed a button? That is a loop running 60 times every second!