I am a psychologist studying mathematical thinking and learning and I have been organizing a monthly math night at a local library. Each math night consists of a short presentation followed by several fun hands-on activities relating to a math topic such as tessellation, probability, game theory, etc.
Having done this for some time, I now have numerous sets of materials that I've designed and could potentially be used by other people. The materials are slides to be used for presentations, scripts that tell the organizer what materials are needed and how to run the activities, and in some cases, handouts to be printed and used in the activities.
What would be some good channels or platforms for me to release these materials for free use by others?