5. Do you have age cutoffs in classes? How are students grouped by age?

First, we have no birthday cutoffs.  We accept students in early kindergarten at age 4, which they need not have reached by the first day of school.  We make judgments on an individual basis.  Second, students progress from their levels of ability, not their age; rather than a lockstep education, we help each student thrive in each subject at his or her pace.  Each student has a grade level, such as 4th grade, which is usually based on age, but it is only nominal.   We have students in grades above their nominal age, but we believe that students grow best socially and emotionally when with others fairly close in age.