Precious metal "precious" metal can also be determined by high demand or market value. Precious metals in bulk form are known as bullion and are traded on commodity markets. Bullion metals may be cast into ingots or minted into coins. The defining attribute of bullion is that it is valued by its mass and purity rather than by a face value as money. The level of purity varies from issue to issue. "Three nines" (99.9%) purity is common. The purest mass-produced bullion coins are in the Canadian Gold Maple Leaf series, which go up to 99.999% purity. A 100% pure bullion is
Precious Knowledge one ethnic studies elective per year. One month later, Governor Kate Brown required Oregon public schools to offer ethic studies for students in kindergarten through 12th grade and the Seattle School Board claimed they would include ethnic studies in school curriculum. In October of 2017, school administrators in Bridgeport, Connecticut, approved a requirement for high school graduation where students must take a half-year class on African American studies, Latin American/Caribbean studies or perspectives on race. Precious Knowledge Precious Knowledge is a 2011 educational and political documentary that centers on the banning of the Mexican-American Studies(MAS) Program in the Tucson Unified