The brain is a social organ.

Most people learn much better when that learning is done through social interaction.

Collaborating with peers turns out to lead to much better learning outcomes.

https://greatergood.berkeley.edu/article/item/nine_things_educators_need_to_know_about_the_brain

The brain needs novelty.

It turns out that what the brain really craves is novelty. Novelty—being exposed to new ideas and things—releases dopamine, which is a neurochemical that's part of the pleasure center of our brains.

The brain has a short attention span.

It needs repetition and multiple-channel processing for deeper learning to occur.

• Variation in activities matters!

• Re-establish attention every five to 10 minutes.

• Repetition supports learning.

Spaced repetition is necessary.

The brain operates on the “use it or lose it” principle. It's constantly building and re-building neural pathways. Those pathways that are used the most often get stronger and more well-established. Those pathways that aren't used get built over.