sentences:  It currently serves over 100 students, the majority staying only for pre-K and kindergarten.Those who stay for first grade and beyond are taught using a mixed-age format where students from two grade levels combine to form one class, their teacher remaining with them all the way through the eighth grade before finally "looping back" to begin again with a new class of first and second graders.The original move to the Calpella campus was only a lease for a single parcel with two buildings, the main one housing the administration and classrooms for the through grades and the smaller used for the preschool and kindergarten.