KALLIS' iBT TOEFL Pattern Writing Series simplifies each TOEFL writing task into a series of simple steps, which ensures that students do not become overwhelmed as they develop their writing skills. Moreover, our commitment to minimizing instruction and maximizing student practice assures that students have many opportunities to strengthen their writing skills while developing a unique writing style. KALLIS’ TOEFL Pattern Series offers a variety of practice questions and quizzes.