Always-Equal Machines

Students understand that equivalent expressions have the same value for any value of the variable. Students will reason about equivalent expressions that involve factoring, expanding, and reordering terms. This will support students in making sense of more complex expressions later in the unit. This lesson does not contain any like terms, which students will see in Lesson 10.

By Desmos Classroom

Learning goals: Learning Goals • Write equivalent expressions that involve factoring, expanding, and reordering terms. • Justify whether or not factored, expanded, or reordered expressions are equivalent.