Please this is a real question about health class that needs a real answer...?

Next year, our homeroom teacher told us that we are going to learn about actually how sexual reproduction occurs. This year the boys and girls were split up and girls learned about their periods or what ever and I don't know what the guys learned about but my question is... How can she explain the process in a professional way? Like, I know how everything goes... Oh my god this question is starting to get weird.. But idek what she's going to do like show a video but there has to be more and do you think they'll split the genders up again? Like how do you say f*ck in a mature way was something I was thinking when she told us.