critical play(s) -- mental growth(s)

_ .. / machine(s) / art(s) / change(s) / human(s) / world(s) / _ / .

play ... a primary indicator of (...) mental growth

play enables children to progress along the developmental sequence from the sensimotor intelligence of infancy to pre-operational thought in the pre-school year to the concrete operational thinking exhibited by primary school children ...

... play also serves important functions in (...) physical, emotional and social development(s)!

critical play

/ play / tribe(s) / network(s) / identity / flow(s) / chart(s) / cycle(s)