Collaboration
Simply stated, learning in teams – that is, collaborative learning – is most effective when the learning task is cognitively demanding enough to warrant collaboration (i.e., complex enough to overly tax the working memory of an individual learner) and when the benefits of collaboration exceed the transactional activity costs.
Reference: https://doi.org/10.1017/CBO9781139547369.027
Simply stated, learning in teams – that is, collaborative learning – is most effective when the learning task is cognitively demanding enough to warrant collaboration (i.e., complex enough to overly tax the working memory of an individual learner) and when the benefits of collaboration exceed the transactional activity costs.
Mentorship through more capable peers
Ivy Camps USA pairs primary school learners with high school / collage aged peers for mentorship.

Form small teams of two to four members of diverse prior knowledge and background for transfer problems and similar backgrounds for familiar problems
This Press Start Academy online boardgames lesson group similarly aged children to learn Language and 21st Century skills collaboratively with boardgames.
