cognitive load, or the strain on learners as they try to hold information in memory while also trying to process new information.
This concept has helped me a lot mentally as a student and as someone who will become a teacher. It is super helpful and important to have a term to connect with the feelings of cognitive overload rather than just being unable to explain how you feel overwhelmed.
Omit unneeded words, sounds, and graphics.
This resonates with me very much as I often try to copy absolutely everything into my notes from a PowerPoint while simultaneously trying to keep up with what is being said. It is often impossible to know what information will be necessary to memorize for a test and you end up with way more to study than is necessary.
Used well, these materials are integral to the session, and to be effective, they need the same careful level of planning and design as the rest of our lesson.
I agree with this statement that emphasizes that the materials teachers use are not just add ons, but rather key components of teaching.