The ENLIGHT Teacher Education Network developed an Erasmus+ Blended Intensive Programme (BIP) on global citizenship in European classrooms. A BIP is a short, intensive programme that uses innovative ways of learning and teaching, including the use of online cooperation. During the last week of April, 45 students and 12 PhD student coaches from all 9 ENLIGHT partners investigated global citizenship in European classrooms. They used the principles of challenge-based education and worked on concrete topics like multilingualism, trauma background immigrant pupils, diversity, inclusion, gender and sexual orientation, religion… The result: tons of enthusiasm, ideas and concrete recommendation and tips for future teachers!