Literature: Opal, Grade 3, Student TextbookOpal provides 3rd grade students literature and language arts education that is welcoming, often fun, sometimes intriguing, and academically excellent. Opal also gives students the skills to make a smooth progression to our 4th grade book, Ruby . Opal integrates language arts and literature with Lessons in Literature that precede each prose selection and teach a progression of language arts skills that build, one on the other. These lessons are