Algebra II is typicality an upper math class taught to juniors.  Out of any other class offered to highschool students it is a leading indicator of college and work success according to a study reported by the Washington Post.   Most students take algebra I and geometry before algebra II, however some advanced students may be encouraged to take it their freshmen year after taking algebra I in 8th grade.  The class has significant focus on higher level operations in algebra including radical, logarithmic, and exponential functions.  Modeling and application is particularly important.