These books really measure up and are based on the NCTM strand and Common Core Mathematical Practices. Each 32-page book in this 6-title set features high-interest nonfiction text, problem-solving activity, supporting graphics, highlighted content-area vocabulary, "Let's Explore Math" sidebars, photographs, graphs, glossary, and index. Titles include Un día de nuestras vidas (A Day in Our Lives); Una noche en el centro comunitario(Night at the Community Center); El mercado de productos agrícolas (Farmer's Market); Un año de nuestras vidas (A Year in Our Lives);Un día en el zoológico (Day at the Zoo); and Mercados del mundo (Markets Around the World).