Okay kiddo, have you ever been to a big family gathering or a school event where someone is in charge and sets some rules for how things will be done? That's kind of like a meeting.
Now, imagine a really big school where everyone gets to vote on what happens with the school. That's like a parliamentary meeting.
In this kind of meeting, everyone has a specific role and they talk in turns. There's usually someone in charge called the chairperson who keeps things moving and makes sure everyone follows the rules.
When it's someone's turn to talk, they have to stand up and address the chairperson. Then, they can talk about whatever they want related to the discussion. However, they have to be respectful and listen when other people talk.
Sometimes, people might disagree with each other and that's okay. They can debate or argue their points respectfully, but at the end of the day, they will vote on what they think is best for the group.
That's basically how a meeting in parliamentary procedure works, it's a way for a big group of people to make decisions together in an organized and respectful way.