LOS ANGELES (CBSLA.com) — A former teacher at a private Westside girls school pleaded not guilty Monday to sexually molesting a 16-year-old student.

Elizabeth Ann Brewer, 39, of Culver City, is charged with three counts of sexual penetration by a foreign object, two counts of oral copulation and one count of forcible oral copulation between January 2004 and December 2006.

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Brewer was a teacher at Notre Dame Academy, a Catholic college-prep school for girls in West Los Angeles, during the time in question.

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Brewer, who faces up to 21 years in prison if convicted, is scheduled to return to court Jan. 20.

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