Education Minister Andrew Barr said preliminary advice from his department indicated the ''extreme views of a fringe organisation'', Focus on the Family, had been presented in six ACT schools in the past two years.

A student at Canberra High School who attended one of the seminars alleged it included claims sex was bad, painted homosexuality in a similar light to bestiality and warned students they could become gay by watching gay pornography.

Students were also allegedly warned they could become attracted to animals by watching animal pornography, that if a couple had sex it was the boy's fault and that girls should not provoke boys by putting their hair up and wearing make-up.

The alleged comments were made during a series of ''No Apologies Impact'' seminars held at the school and attended by students from years 7 to 10.

Mr Barr ordered his department conduct an investigation, which is expected to take weeks to complete.

The student's parent, David Gould, said he was very concerned that Focus on the Family was teaching students to discriminate against homosexuals.

''It's just wrong, it confuses young people already going through the confusing period that is adolescence and it's spreading hatred.".

For more details on this story, pick up a copy of today's Canberra Times.