O#1: Developing 10 hands-on building instructions on how to build green elements including plant/green care and composting. O#2: Implementing of a minimum 15 green elements at 13 schools in at least 5 countries. O#3: Developing of 24 materials/topics, experiments and content for https://greencoolschools.eu/. O#4: Teachers in the participating countries and beyond exchange within the Green Cool Schools network. O#5: Wide dissemination via website, training, networking events and social media.