Goal of COTA (Computational Thinking and Acting) Erasmus+ project is to develop and validate new learning and teaching ICT solutions in Computational Thinking and problem solving in primary schools. COTA will explore the concept of Physical Computing and provide open learning activities for programming including teacher materials and teacher training. COTA will also develop scenarios for including programming into different subjects and a competence framework of Physical Computing linked to existing national curriculas in Finland, Estonia, Germany and Greece.