Great synopsis of the criteria for an effective lesson.The Child centered approach is key in projects like Minecraft. The students are often more experienced with the application than us teachers and so it is important we give them the opportunity to use this experience. Your school seems to be well set up in terms of ICT equipment and recent CPD on using different applications. Minecraft can be purchased on an annual bases. Prodigy learning are the crowd we use in our school to get the licences.