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Kiara Burke, center, concentrates on her work in Breianna Davis' kindergarten... ( RAY CHAVEZ )

By the eighth week of school, kindergartners have, for the most part, stopped crying for their mothers. Students have settled into a routine, knowing what their teachers expect of them.
But in some Oakland schools, those routines will soon be upended. Next week, a small group of teachers will be transferred to other schools, a cost-saving measure to help the district out of a $1.4 million budget hole. Their students -- and, in some cases, other children at the affected schools -- will be sent to different classrooms.
One of those teachers is Breianna Davis. She teaches kindergarten at Carl B. Munck Elementary, a high-performing and majority-African-American school in the Oakland hills. Her class of 22 -- which, two years ago, would have been larger than average -- is now considered too small. As the newest teacher at her school, Davis will be transferred elsewhere. Her students, mostly 4 and 5,