Knowing if, when and how Edtech works is the billion-dollar question that everyone wants an answer to! However, scaling EdTech evidence generation for the many thousands of available products is a huge global challenge. Solutions to this can provide much-needed opportunities to digitally upskill teachers and learners. Along the way, academic research communities support developers to gather important feedback that enables them to iteratively improve their products and services. In this panel discussion you will hear about different global approaches from the Global Edtech Testbed Network, which was established in 2023 to share and support different country and regional initiatives.