What are multiage classrooms?
A multiage grouping means that children of a two- or three-year span are grouped together heterogeneously in one classroom and stay with the teacher for that period of time.... This concept decreases transition times in the beginning of the school year as only one-half or one-third of the students are new. Teachers spend less time diagnosing student needs and setting up classroom procedures. Learning begins at the beginning. Students are grouped for instruction by skills rather than by grade levels. Students are then able to work at their own pace, increasing the opportunity for challenging learning activities and learning based on their own instructional level.
Links to further reading on multiage classrooms: