The Stinson Beach Preschool received approval from the Bolinas-Stinson Union School District trustees in a unanimous vote Tuesday to install a portable classroom on the K-2 campus.

“We’re very thrilled,” said Susan Tacherra, the preschool’s longtime director, “and now we can start raising the $115,000 to complete the project.” When asked where she would begin, Ms. Tacherra jokingly asked, “Do you have any ideas?”

She said the school plans to approach the community and alumni for…