This course advances the ability of students to think algebraically, taking them from middle school work with variables and linear equations to the exploration of non-linear function types and more advanced calculations with variable expressions. Students will work with expressions, equations, inequalities, and functions. The course places considerable emphasis on identifying key features of functions in various forms, such as graphs, tables, and equations. It also fosters an understanding of functions as relationships that help people in many walks of life calculate and plan. The course brings these concepts to students in many forms, including interactive graphing, videos of solving problems, and many practice items.