@cinnamon1212 I agree most BSs have similar structure. St Mark’s has a very similar structure as well. Grades have n the first semester are not recorded, in case there’s a difficult transition. Also, SMS (like most schools, I think) has an add/drop period at the beginning of each semester to make sure kids are placed in a class appropriate for their level. If it appears a class may be too advanced, or too easy for that matter, they can be moved into a class more suited for them.