The idea is to keep it simple. If you can't understand what's going on, fix and change the tools, as that's the only way the human mind at best can come and learn something new to it's conscious awareness.
On average, a human mind can at least hold up to around 7 things on it's conscious metacognitive short term memory, before some of those become consolidated long term, but usually are done thru a very strong stimulus association, as feeling is the best way of learning.
It also helps to keep drawing symbols, images, etc. to keep it simple and help recall a conceptual idea that's supposed to come and learn the idea, like learning the letters of the alphabet or math. Basically sign learning.
Again, keep it simple. Use colors, toys, cartoons, music etc. Everything goes and works really. I'm a cognitive/learning theorist, so I kinda should know. But it also kind of depends on the type of learner and performer that you are also.
The thing is you also want to separate the claims of who said and who did a lot of the times too and understand you're being graded on a criterion scale on the selected set of subjects and skills you're going to be performing and testing on.