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.
While more expensive than asphalt, metal roofing lasts longer and is more wind resistant. 1  Materials: May be composed of steel, aluminum, copper, or zinc alloy. Steel roofs come with either a zinc coating or painted finish. 2  Appearance: Available in sheets or in shingles that resemble other materials.