When teachers regularly observe and document brief, subtle moments of children's learning through play, those records can help parents and others understand how useful and important play is in helping children to learn and grow. How can I rephrase this? Plz rephrase this! Thanks

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.