The Mountain View Whisman school board approved Lyon's new position last Thursday, May 6, at its bi-monthly meeting.
Lyon will take office in August, when current principal Steven Gilbert it set to retire.
"I want to help them explicitly define their approach," she said of Stevenson school's educational philosophy.
The school is home to the district's Parent, Child, Teacher Program (PACT), an educational approach featuring strong parent involvement in the classroom.
Lyon will have to quickly build effective working relationships with the school's teachers and parents, she said.
"It's a very strong community. I want to get in there and get to know people and let them get to know me," she said.
Lyon has worked in the Mountain View Whisman School District for the past 14 years. Most recently, she has been an instructional facilitator at Monta Loma elementary, where she handles teacher coaching and professional development.
She has also taught kindergarten, first grade, and English as a second language (ESL) classes for students at various grade levels.