( CNN ) -- A proposed health curriculum in Helena , Montana , public schools has riled up some parents who say it starts teaching students about sex far too early . Several hundred parents in the mountain state 's capital packed a school board meeting earlier this week to debate the 62-page proposal . It includes four pages of charts listing what elements of human sexuality should be introduced at which grades . `` Ninety-five percent , if not 99 percent , is really , really good stuff , '' Helena parent Brian Ackerman told HLN 's `` Prime News . '' But he added , `` It 's not something we can attach 100 percent agreement with all of the committee members . '' The proposed curriculum guide is part of a broad range of health courses that also teach nutriition , disease prevention , anatomy and environmental health . It would teach students as early as second grade that using anti-gay slurs is hurtful and teach children in older elementary grades about sexual harassment and abuse . Students would be told as early as kindergarten to properly name body parts . The concept that people `` can love people of the same gender and people of another gender '' would be introduced in first grade , though homosexual relationships are n't discussed until fifth grade . Fifth-graders also would learn that sexual intercourse `` includes but is not limited to vaginal , oral , or anal penetration . '' Teachers would start discussing pregnancy , sexually transmitted diseases and drugs and alcohol with middle-schoolers , while high school students would learn about sexual orientation and the `` legal implications '' of some decisions . Ackeman , who has two elementary-age daughters and a third approaching kindergarten , said parents should be told `` who decided this , when did they decide it and how did they decide it ? '' `` We really have n't seen where that age-appropriateness comes from , '' he said . In addition , he said the district has not figured out how to implement the program . `` There is n't any sort of implementation in place right now that says this is how we 're going to teach this , '' Ackerman said . Bruce Messinger , Helena 's school superintendent , said the guide was drawn up by a committee that included parents , teachers and administrators . That committee used local practices and examined national guidelines , including those put out by the American Academy of Pediatrics , he said . `` It establishes that between the ages of kindergarten through grade 4 , vocabulary would be introduced so a student has an understanding , '' Messinger said . `` It does n't specifically say what would happen . '' Implementation plans will be developed later , he said -- and if parents object , he added , `` They have a right to opt out . '' The last school board meeting drew not only critics but supporters . And Cathy Areu , publisher of the Latina women 's magazine Catalina and a former high school teacher , told HLN the standards sound defensible and age-appropriate . `` It sounds like they are teaching body parts and things that are facts of life , '' Areu said . `` I feel more comfortable with my daughter learning about this in a classroom than from a boy in the hallway . ''
Helena , Montana , schools are planning a new curriculum that includes sex education . It would start in early years -- kindergartners would be told to properly use body parts . Some parents say it starts teaching children about sex far too early . School officials say parents can always opt out if they object .