A map showing possible elementary school pairings for grade-level centers within District 47 in Crystal Lake. (Photo provided by Crystal Lake School District 47)Crystal Lake Elementary School District 47 is considering changing the structure of its elementary schools to address class size imbalances across the district. One option would have elementary schools house specific grades called “grade-level centers,” rather than each school housing kindergarten through fifth grade classrooms. A map showing possible boundaries for a multilingual language academy within District 47 in Crystal Lake. Crystal Lake resident Joe Keegan spoke at a recent school board meeting, encouraging the board to consider redrawing the boundaries.