Each grade has four different leveled groups in each subject (so, 4 math, 4 spelling, 4 reading) with classes from below grade level to above grade level. Students are assigned to each group based on a combination of assessments and students are moved in and out of groups as needed throughout the year so that their needs are met as best as possible. Kids move throughout the grade level pod during the day to these leveled groups, in addition to the instruction happening throughout the rest of the day a student's main classroom.
*swoon*
No further comment, really, just--why can't more schools do this???