A Montgomery County school board member will sit in on sex-education classes that have prompted parental protest and a federal lawsuit claiming an anti-religious and pro-homosexual bias in the curriculum. "I do take those concerns seriously, which is why I want to see it," said Steve Abrams, the lone Republican on the nine-member school board. Mr. Abrams, who is also chairman of the county Republican Party, is the only school board member who has expressed plans to visit the new sex-education classes, a school official said.