Between 2016-2019, five European schools worked together on an ERASMUS+ project to develop a virtual curriculum for science subjects. The project aimed to create a common methodology for developing curriculums more flexibly using technology. Based on a model from Cockermouth School in the UK, the virtual curriculum provides students access to lesson content online, including videos of practical experiments and assessments. This is intended to improve learning outcomes by allowing students to better prepare for lessons and review material independently. The project partners collaborated to design virtual curriculum websites for their schools that map to each country's science standards and support flipped classroom learning.