In 1903, Marie and Pierre Curie were awarded half the Nobel Prize in Physics. The citation was, in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel..
Elementary algebra is the most basic form of algebra. 1  It is taught to students who are presumed to have no knowledge of mathematics beyond the basic principles of arithmetic. In arithmetic, only numbers and their arithmetical operations (such as +, â, Ã, Ã·) occur.
Pre-algebra is a common name for a course in middle school mathematics. In the United States, pre-algebra is usually taught in the 7th grade. The objective of pre-algebra is to prepare the student for the study of algebra. Pre-algebra includes several broad subjects: