This guide builds on the foundational concepts presented in Grades K-8. Algebraic thinking and symbolic reasoning play a critical role in algebra. Since functions provide the foundation of Algebra I and Algebra II, this course uses a function approach as it provides the student opportunities to solve problems I real life situations. The study of functions, equations and their relationships is central to all of mathematics. Students perceive functions and equations as a means for analyzing and understanding a broad variety of relationships and as a useful tool for expressing generalizations. Students perceive the connections between algebra and geometry and use the tools of one to help solve problems in the other. Students use concrete, pictorial, numerical, symbolic, graphical, and verbal tolls and technology to model mathematical situations to solve meaningful problems.