The Most Distant Galaxy in the Universe So Far - Duration: 4:24. SpaceRip 506,555 views
What Is Standards-Based Grading? Standards-based grading, sometimes called proficiency grading, is a method for teachers to measure how students are doing in meeting the learning goals for their grade as determined by their stateâs standards.
Primary StandardsA primary standard is a reagent that is extremely pure, stable, has no waters of hydration, and has a high molecular weight.   Secondary StandardsA seco â¦ ndary standard is a standard that is prepared in the laboratory for a specific analysis. It is usually standardized against a primary standard. 10 â¦ 5.99 g/mol A secondary standard is a standard that is prepared in the laboratory for a specific analysis. It is usually standardized against a primary standard.example: NaOH.. 19 people found this useful.