A mother of four who subjected her 11-year-old daughter to a "bizarre sex education" was jailed for four years yesterday.

The 37-year-old Sunshine Coast mother used her mobile phone to create three films showing her raping her youngest child and exposed her to other sexual activity "in response to repeated questions".

Judge John Robertson said the mother, through her "selfish criminal conduct", had deprived her daughter of the right to "a wholesome and loving relationship with her mother".

He said while sexual offences against children by their own mothers were "rare", the community acting through the courts should denounce "this shocking conduct" with a significant punishment.

"From the start you characterised your behaviour as some form of bizarre sex education with the child which did not involve sexual gratification from you... You were obsessed with sex and your life was in chaos," Judge Robertson said.

Read more at the Sunshine Coast Daily.