As someone who works in education, I can only suggest that you follow the direction of the first responder and communicate with your child’s teacher first. Going to the school to “raise hell” isn’t the way to handle this type of issue. Remember, your actions on this are teaching your child as well. How would you teach your child to handle conflict?
In the workforce, how would you feel if someone complained about something you did by going to the president of the company without letting you know about the situation first?
Schools are by far not perfect. Teachers are greatly over-worked and over-expected to teach everything (including sex education, healthy eating, proper hygiene, netiquette, social behaviors, etc.) beyond the 3Rs these days.
Teachers are people too.
As a Flutherer and as an educator, please go speak to the teacher first about this issue. Find out what is being taught. Most teachers provide parents a syllabus of information at the start of school. Ask for this and make sure you are okay with what is being taught. Voice your concerns. Share. Communicate.