Curriculum by age
Three age bands, with age-appropriate topics and sources for each. The teacher chooses what is taught.
Ages 9–11
Knowing my body
- My body is changing: what puberty is
- Hygiene and self-care
- Feelings and how to name them
- Personal boundaries and trusted adults
Ages 12–13
Growing up
- The changes of puberty
- Periods: what they are and what to expect
- Sleep, movement, food
- Friendships and peer pressure
Ages 14–15
Relationships & wellbeing
- Relationships, respect and consent
- Mental health and where to get help
- Body image and social media
- Staying safe online
What the curriculum is based on
The structure follows the approach of the joint UN guidance on education about the body and relationships: age-appropriate topics that return and deepen as children grow[1].
Some examples from our sources:
- WHO defines adolescence as ages 10 to 19[2].
- According to the NHS, puberty can start at any point between about 8 and 14[3].
- The NHS says most girls start their periods at around 12, but it can be as early as 8. It can also take some months for periods to settle into a regular pattern[4].
- According to WHO, one in seven 10–19-year-olds worldwide experiences a mental disorder[5].
- WHO estimates that in 2016 only 1 in 5 adolescents worldwide met its physical activity guidelines[6].
The final content of every lesson is checked by experts before it reaches the classroom. It will be aligned with the Greek health-education framework. We do not claim official approval by the Greek Ministry of Education.
See also: for teachers · for parents · FAQ.
Sources
- UNESCO, UNAIDS, UNFPA, UNICEF, UN Women, WHO. International technical guidance on sexuality education (revised edition) (2018). www.unfpa.org/publications/international-technical-guidance-sexuality-education (opens in a new tab) · DOI (opens in a new tab)
- World Health Organization. Adolescent health (health topic). www.who.int/health-topics/adolescent-health (opens in a new tab)
- NHS. Puberty (last reviewed 2 April 2026) (2026). www.nhs.uk/conditions/puberty/ (opens in a new tab)
- NHS. Starting periods (last reviewed 5 January 2023) (2023). www.nhs.uk/conditions/periods/starting-periods/ (opens in a new tab)
- World Health Organization. Mental health of adolescents (fact sheet, 1 September 2025) (2025). www.who.int/news-room/fact-sheets/detail/adolescent-mental-health (opens in a new tab)
- World Health Organization. Adolescent and young adult health (fact sheet, 26 November 2024) (2024). www.who.int/news-room/fact-sheets/detail/adolescents-health-risks-and-solutions (opens in a new tab)