I have been working at the EAL Department for over 10 years developing resources in various subjects. If you are keen on Flipped Classroom concept of teaching, you can use all my presentations as pre-teaching resources for students (to study before a lesson).
This is a full set of all presentations based on Edexcel (9-1) History Anglo Saxon and Norman England. The book has been converted into PowerPoint presentations accesible to all ability students, by adding many pictures, charts and diagrams to increase the comprehension of the course. It is accessible to EAL/ESL pupils as well. Flipped Classroom friendly.