Last fall, Immaculate Conception School Principal Bernadette Felicione began seeing a disturbing trend. First, two kids did not return to school in September. Then, six other dropped out by winter break. Usually the Northwest Side school looses about two kids during the entire school year, she says. “We are worried that it’s going to get worse,” Felicione says. In the sign of the difficult economic times, schools like Immaculate Conception are freezing tuition.