After-school science classes in Portola Valley


The physics of simple machines, the interaction of force and motion, is the topic for after-school winter science classes for kids in grades K-3 at the Portola Valley Town Center.

The 10-week sessions are $250, which includes materials and snacks. Classes meet on Monday, Tuesday and Wednesday afternoons, except for holidays.

Classes began Monday, Jan. 11, but registration continues through Friday, Jan. 22.

Go to to register, or register by mail or in person. Online registration does not allow online payment; checks must be mailed or delivered in person to Town Hall.

Go to for more information, including class hours and frequently asked questions. Click on the Community Classes link on the left side of the home page.

To contact the instructor, Yvonne Tryce, write to


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