Officials of the San Gabriel Teachers Association are relieved. In a different way, so is Ava Shaw. Shaw, 52, a resident of Pasadena, California, had taught special education at Jefferson Middle School in nearby San Gabriel for several years. She also headed the SGTA for four years. After she left to take a job at a private school, her past caught up with her. She was arrested and eventually pleaded no contest this past February to thefts from her union totaling around $85,000. On May 28, Shaw was sentenced in Alhambra (Los Angeles County) Superior Court to three years probation, and ordered to complete 120 days of community service and repay $64,000 in stolen union funds. A second teacher, Jennifer Boyd (now Boyd-Oliver), also had been charged in the case; she pleaded no contest to theft of a much smaller amount. Like Shaw, she was placed on three years probation, and will have to perform 45 days of community service.