FRIENDSWOOD, Texas (AP) — Parents of some junior high students are upset they weren't notified about a school presentation on Islamic culture, an omission that violated school district policy.

The parents' letter-writing campaign stems from a May 22 presentation at Friendswood Junior High, where two Muslim women gave a 30-minute presentation about Islamic life as part of a yearlong study of respect, tolerance and culture. The school is on Texas' Gulf Coast between Houston and Galveston.

The guest speakers discussed Muslim culture, including topics such as beliefs, food, dress and famous Muslims.

School district spokeswoman Karolyn Gephart said principal Robin Lowe had the "best intentions," but Gephart acknowledged not informing parents beforehand was a mistake.

District policy states parents are to be informed about the purpose and content of presentations so that they can keep their children out if they think the material might be offensive or inappropriate.

Kim Leago, whose son is in the eighth grade, said she's still upset he was exposed to the "inappropriate" presentation. "We can't say, 'One nation under God' in school, so I definitely don't think (the presentation) was the right choice," she said.