Also included as part of 5oa2 Write and Interpret Numerical Presentation Full Lesson Bundle. Introduces simple expressions. Interactive lesson guides learner through writing and interpreting expressions without evaluating. Scaffolded lesson provides for classroom differentiation. Can be used as a lesson leader, guided practice, independent practice, for cooperative learning and math centers, or as an assessment. Use with smartboard, projector, computer, pad or as printable. Lesson is complete