Mathina is a two-year collaboration Erasmus+ project between five European organizations, to promote mathematical thinking by developing, implementing, and disseminating open educational tools adequate to the digital age.The participatnts on this project are Atractor (Portugal), Bragi vizualne komunikacije (Slovenia), Curvilinea Società Cooperativa (Italy), Experience Workshop (Finland), and IMAGINARY (Germany). The project is funded by the Erasmus+ program of the European Commission.The project aims to reinforce the connection between formal and non-formal learning of mathematics, by developing Open Educational Resources that can be used either by educators, or directly by the young learners with the help of the parents. Mathina will produce four outputs:A booklet on the Innovative Mathina Program, describing the fundamentals of the project.A repository for educators.A repository for young learners.A handbook for educators. More information on the project page of the Erasmus+ portal. This project has been funded with support from the European Commission. This project reflects the views of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.