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?
How to Apply Polyurethane. Polyurethane is a type of synthetic varnish used for finishing and sealing wood. In interior applications such as finishing floors and wood furniture, polyurethane is harder and more resistant to abrasion than its naturally-derived counterparts.. After the first coat is dry, lightly sand with 400 grit sandpaper. Using a tack cloth, remove the dust before you apply the second coat of polyurethane. Apply the second coat of polyurethane just as you did the first. If desired, a third coat be be applied following the same method for extra sheen and durability.