<P> The United States differs from most other countries in that mathematics is generally separated by topic at the high - school level . Two years are devoted entirely to algebra and one year entirely to geometry . (A few localities follow an integrated curriculum, as in other countries .) The algebra - geometry - algebra sequence is followed by a course often called pre-calculus for college - bound students . Pre-calculus usually combines advanced algebra (or "Algebra 3") and geometry with trigonometry and other topics in preparation for a course in calculus, which is taken in the 12th grade at high school or the first year of university studies . The age at which the algebra - geometry - algebra sequence begins varies according to locality and student ability . Other optional mathematics courses may be offered, such as statistics or business math . </P> <P> Sometimes, a college level calculus course is offered via Advanced Placement courses . This is known as AP Calculus . </P> <P> Near the end of the 20th century, diverse and changing ideas about the goals and methods of mathematical education led to wide adoption of reform - based standards and curricula funded by the US federal government, and also adopted by other national curriculum standards . These were based on research emphasizing the importance of conceptual learning, student - centered learning methods and equity in mathematics as the centerpieces of the standards based education reform movement . </P> <P> The goals for educators in the 1990s expanded in the context of systemic standards based education reform in the United States and other nations to promote increased learning for all students . It is a goal to achieve equity and success for all groups in society, as it is no longer acceptable to many in the education community that some have been historically excluded from the full range of opportunities that are open to those who have access to the most advanced mathematics . </P>

When did algebra begin to be taught in schools