Two-round system

Okay, so let's say we are picking a leader for our class. There are two candidates, you and Fred. The teacher asks everyone to raise their hand for who they want as leader.

In the first round, some people raise their hands for you and some people raise their hands for Fred. But not one person has more hands raised for them than the other.

So, we move on to a second round. This time, we only have two choices: you or Fred. Now everyone votes again, but this time they can only choose between you and Fred.

Whoever gets the most votes in this second round is the winner! It's like we had two mini-elections to decide who should be the leader.