Okay, imagine you and your friend both want to learn about space. You both have different ways of learning - maybe you like to read books, and your friend likes to watch videos. This is kind of like how different boys and girls might like different things in school, too.
Some people think that boys and girls are just naturally wired differently and that's why they like different things in school. But other people think that it's more about how we're raised and what we're taught. That's why it's important for teachers to make sure they're not treating boys and girls differently in the classroom.
For example, it wouldn't be fair if the teacher always called on boys to answer questions and never gave girls a chance. And it wouldn't be fair if the teacher only showed examples of men doing science experiments and not women.
It's important for boys and girls to have equal opportunities to learn and explore their interests, no matter what those interests might be!