Blaketown School trustee Jo-Anne Sim resigned this month over the “unacceptable” and explicit class, delivered to Year 7 and 8 pupils in December.
Ms Sim said the children were told about oral and anal sex, flavoured condoms, and pleasure points – despite parents being told in writing beforehand that pupils would be taught only the basics.
“Eleven, 12 and 13-year-olds don’t need to know this stuff. That’s why we’re mad,” said mother-of-two Ms Sim.
Her daughter told her some children had their hands over their ears because they were uncomfortable with the lesson.
“They were too scared to say ‘we don’t want to hear this.”‘