Used to identify pipe and fitting sizes in plumbing. Refers to the inside diameter of the pipe which can vary by thickness of the pipe. The outside is a constant size. For copper pipe the outside diameter is always 1/8 larger than the nominal size. Example: 1/2 nominal is always 5/8.
Competency-based learning or Competency-Based Education and Training is an approach to teaching and learning more often used in learning concrete skills than abstract learning. It differs from other non-related approaches in that the unit of learning is extremely fine grained.
Like most things education-related, there is disagreement of what competency-based learning actually means, what its defining traits are, and how it should ideally be used or function. It is traditionally thought of in terms of skills and vocation, but it can be entirely âacademicâ as well. A key characteristic of competency-based learning is its focus on mastery. In other learning models, students are exposed to contentâwhether skills or conceptsâover time, and success is measured summatively.