I know who I'm teaching now

The way the school years work here is like this:  you start in primary school for 6 years.  After that comes middle school, called college here with a soft 'g'.  I'll be teaching the second year of middle schoolers.  They go for 4 years, starting as 6th years and leaving when they are 3rd years.  High school (lycee) is 2nd years, 1st years and terminal year, so 3 years.  I will be teaching 5th year middle schoolers, I'll have two classes of about 80 kids and I'll be teaching math.  The ages should range from 14 year olds to 20ish year olds.  I did practice teaching on 3rd year kids and I only had 7, so this will be a step down in their french skills, while increasing the number by a factor of 10.  I have no idea what to expect, but I really just need to be scary the first couple of weeks and then they will behave better for the year.  I start on October 1st.  Hopefully I'll have some pictures with my students sometime soon.  I just bought a book on learning Dioula, so hopefully my skills will start to skyrocket.  Water fall pictures coming within a week.