CMEC (Council of Ministers of Education, Canada) states When children are playing, children are learning.

CMEC believes in the intrinsic value and importance of play and its relationship to learning.  Educators should intentionally plan and create challenging, dynamic play-based learning opportunities.  Intentional teaching is the opposite of teaching by rote or continuing with traditions simply because things have always been done that way.  Intentional teaching involves educators being deliberate and purposeful in creating play-based learning environments - because when children are playing, children are learning.