Our Junior Great Books<span style="font-size:0.6em;vertical-align:top;">&#174;</span> Nonfiction Inquiry classroom materials for grades 3, 4, and 5 help teachers and students extend inquiry-based learning into informational texts. Each grade-level set features 9 high-quality nonfiction units aligned with grade-appropriate national benchmarks in science and social studies, as well as national standards for reading, writing, listening, and speaking.