This project is a joint eTwinning and Erasmus+ project where we are going to be working with students 3 to 12 years old. The project has got partner schools from Poland, Estonia and Spain. The main topic of the project will be Content and Language Integrated Learning (CLIL), which is an approach where students learn a subject and a second language at the same time. In this project we want to combine a CLIL approach with Problem Based Learning (PBL), where students learn about a subject by working in groups to solve an open-ended problem. This eTwinning will help us share thoughts and experiences amongst CLIL teachers, while implementing CLIL-PBL projects that partner schools have already tested. It will give us the chance to learn from one another and improve our teaching practice. Further to that, we want to use this project as a cultural exchange experience, where students can gain knowledge about partner countires and therefore increase their undrestanding of European richness and diversity. To do so, we'll plan cultural activities, videoconferences, workshops and shared virtual and face to face experiences that students and teachers will be able to enjoy.