This is a "must have" for teaching expressions! These 6 posters help when introducing, teaching, and reviewing what an expression is (a mathematical statement with no equal sign) as well as the parts of an expression (terms, coefficients, constants, variable). Also included is a poster as to what an equation is to discuss what the difference is between an expression and equation (great class discussion!). They are clear and simple and easy for students to grab information from. Print full page or multiple to a page (I LOVE mini-versions just for me) and laminate to keep forever!