Hi @shastaa,
I would suggest reaching out to the admissions office with your question about the dual enrollment program you’re participating in. You can reach the office by emailing spo-dualba@columbia.edu. As far as attending an information session, it is not required. I don’t know where you live, but if you are interested in attending one, there are information sessions held throughout the U.S. and it’s possible that one may take place near you.