Veteran teacher Jeanne Kitayama is on special assignment for the Haines Borough School District. Her mission: To help ensure that all Haines students are reading at proficiency by the end of third grade.

Kitayama’s part-time position, established on a trial basis this year, grew out of new research about developing brains and borrows from some recent, pioneering work aimed at “intervention,” or intercepting students who are falling behind and catching them up.

In interviews,