Short descriptionTeach function notation as a language, not a trick. Students learn the one decision that drives every f(x) problem — am I given the input or the output? — then practice both moves (evaluate f(a) and solve f(x)=k) across rules, tables, graphs, and real-world context. Includes a fully scripted new-teacher plan, a translator card launch, four-representation practice, a 16-question homework, a self-checking decoder puzzle, a check for understanding, and a quiz. Print PDF + editable