Often, experienced teachers in schools and colleges are asked to present training packs written by others. The assumption is that since they are experienced teachers, making training presentations to their colleagues will be easy. They often find that it is not. Usually, the material has been designed to be delivered using a model where one person within a school or college will make themselves responsible for familiarising themselves with Trainer's Notes, the Teachers' Guide and the rest of the support material provided. They will then be able to use the pack to make a presentation to the rest of their colleagues.