Thoroughly learn and practice vocabulary. All new words from Blue Line 2, including differentiated vocabulary. Varied exercises and motivating puzzles. Many writing exercises to help memorize the new words and phrases. Solutions for self-checking are removable. With Blue Line vocabulary training, students can easily and sustainably memorize new words and phrases. Varied and motivating vocabulary exercises particularly train the writing of all new words from the student book, including those from the differentiated vocabulary. The included answer booklet supports self-assessment.