School culture is the set of norms, values and beliefs, rituals and ceremonies, symbols and stories that make up the 'persona' of the school, says Dr. Kent D. Peterson, a professor in the Department of Educational Administration at the University of Wisconsin-Madison.n the other hand, in a toxic school environment, teacher relations are often conflictual, the staff doesn't believe in the ability of the students to succeed, and a generally negative attitude prevails, notes Peterson.
Acrylic roof coatings. These coatings contain various types of acrylic polymer, and are typically formulated to help extend the coatingâs life and improve durability. Acrylic coatings are available in a number of colors but are most commonly used as white reflective coatings.
They are often confused with roof cement. To get the terminology right, coatings have the consistency of thick paint and are typically spread over the entire roof with a heavy-napped roller. Roof cement is a dense paste typically spread with a trowel that's used to spot-seal leaks. Legitimate asphalt coatings are used mainly as an overall sealer on low-slope roll roofing -- the kind of roof you might have on a shed. The coatings don't look right or work well over shingles or roofs with a steep slope.