For nearly four decades, Somchanh Baccam has been a friendly face greeting students at Cedar Valley Montessori School.But as this school year comes to a close, so too will Baccam’s teaching career as she is set to retire after 39 years. Ms. Somchanh, as she’s known by students and colleagues, first started working as a lead directress at Cedar Valley Montessori School, located in downtown Cedar Rapids, in 1979 and has spent her whole career with the school, even through all the moves and transitions.