Types of check valves. A ball check valve is a check valve in which the closing member, the movable part to block the flow, is a spherical ball. In some ball check valves, the ball is spring-loaded to help keep it shut.
(October 2016) Learning is the act of acquiring new, or modifying and reinforcing existing, knowledge, behaviors, skills, values, or preferences which may lead to a potential change in synthesizing information, depth of the knowledge, attitude or behavior relative to the type and range of experience.
What is Active Learning? Active Learning is an approach based on the work of Dr. Lilli Nielsen. It is not just a piece of equipment, such as a Little Room or a HOPSA dress, but rather it refers to a total approach, for instructing individuals with severe multiple disabilities.