A Jamaica Plain man who taught at Mission Hill K-8 has been accused of improperly touching an 8-year-old at a Boston hospital. Suffolk County District Attorney Dan Conley announced that Juan P. Cortes, 25, was arraigned Monday on one charged of indecent assault and battery on a child. Boston Public Schools put the teacher on administrative leave, Conley's office said in a statement. CBS Boston reports that Cortes is a teacher at the Mission Hill School, which shares the Margarita Muñiz Academy in the former Agassiz School on Child Street. The two-school campus was in the news Friday after a Muñiz Academy student was stabbed in a fight outside the school.