· Information tools
These tools support the acquisition of information of the learning materials. They help you to get a message across, without interacting with your student (one way!).
There are plenty of opportunities to present information: text, photo, video, diagram … Some forms of representation are better than others to convey certain aspects of information. As text lends itself pre-eminently for an explanation involving abstraction. A diagram is then a better form to transmit cohesion and structures. Etc.
In addition to the message, there are other characteristics that determine the choice of the representation form: