Hey there kiddo! Do you know what a language is? A language is a way for people to communicate with each other. Like how you and I are talking in English right now!
Now, have you heard of a country called France? It's a place where people speak a language called French. But a long time ago, France had some colonies, which means they took over other countries and made them part of France.
When France took over these other countries, some people still wanted to speak their own languages but they had to learn French too. So they combined their language with French words and that's how creole languages were created.
For example, the people in Haiti speak Haitian Creole. It's a mix of French and African languages. In Louisiana in the United States, there's a creole language called Louisiana Creole. It's a mix of French, Native American and African languages.
So when you hear about French-based creole languages, it means that they were created by mixing French with other languages. That's why they sound similar to French but have some different words and grammar too.
Did that make sense, kiddo?