The Side by Side Activity and Test Prep Workbook feature: -- All-skills activities reinforce learning objectives in the Student Books -- GrammarRaps motivate learners and promote language mastery through entertaining practice with rhythm, stress, and intonation. -- Unit Achievement Tests assess student progress and prepare students for standardized tests. Side by Side Plus is a standards-based and grammar-based English language program for adult and young-adult learners, The program builds students' general language proficiency and prepares them for their life-skill roles in the community, family, school, and at work.