The following tables list some of the relevant development and behaviour by age for sexuality development of children. They can be found in the Victorian Curriculum Resource called Catching On Early where they were adapted with permission from the Society of obstetricians and Gynaecologists of Canada (2008). Other resources are listed at the bottom of this page.
With 23 years experience as a Sexual Health Nurse & 15 years as an Educator, I'm delivering information & support to Parents, Teachers, Health Professionals and Young People with the aim of encouraging essential conversations about all aspects of Human Sexuality. Hope you find it useful to your situation. Good luck with your conversations, Vanessa x