Laura Perrins, from the campaign group Mothers at Home Matter, has told ITV Daybreak that "any amendment to the children and families bill will disempower parents."
MPs today will vote on the Children and Families Bill to include Sex and Relationship Education in the National Curriculum.
MPs today will vote on the Children and Families Bill. If it passes, Clause 20 will make Review of Sex and Relationship Education a statutory part of the National Curriculum.
Shadow Children's Minister, Lisa Nandy, has told ITV Daybreak: "It's really important [that young children] understand what a healthy relationship looks like."