Provide enough wait-time for students to reflect when responding to inquiries. Provide emotionally supportive environments in the classroom encouraging reevaluation of conclusions. Prompt reviews of the learning situation, what is known, what is not yet known, and what has been learned.
Polyurethane is a fully reacted polymer in which every molecule bonds with another so it is chemically inert, which keeps it from oxidizing or leaching chemicals, theoretically extending tire life. Tires of the future?
Polycrylic vs. Polyurethane â Which To Choose For Your Next Project. Polyurethane is a protective finish that is available in both oil based and water based forms. It comes in 2 varieties - glossy and satin finish. Water based polyurethane is famous for being low odor and low toxic. It is transparent as compared to the oil based version which has a slight color. The water based version also dries much faster.