Overview6 copies of each of 9 titles, 54 books total. Ladders Social Studies consists of high interest social studies topics with engaging text and visuals that align to Common Core State Standards. Through this content, students develop a clearer understanding and appreciation for the world around them. Ladders Social Studies offers titles for grades 3, 4, and 5 at three reading levels. Students whose reading levels range from 2nd grade to 6th grade will appreciate the stories and articles.