How do good writers choose words, information, structures, and formats that invite readers into their world? This bestselling series guides students through the writing process, ensuring they learn to write sentences, paragraphs, and essays with competence and clarity. Each unit opens with stunning National Geographic photographs, helping to stimulate student writing. Grammar for Writing sections help students apply target structures to the writing goals. Building Better Vocabulary activities highlight words from the Academic Word List and encourage students to use new words in their writing. Writing Models provide clear examples to help students produce original writing and Timed Writing prepares students for success on standardized and high-stakes exams. Level 3 begins with the elements of good writing. Four units provide instruction on writing descriptive, comparison, cause-effect, and classification paragraphs and essays.