¿Qué hace a una familia?

Kids use pencils everyday. Read to find out how a pencil is made. Paired to the fiction title Where is My Eraser?.

The Earth is made up of shapes. The shapes make up landforms. Find out about all of Earth’s landforms. Paired to the fiction title A Long Car Ride.

The Earth is made up of shapes. The shapes make up landforms. Find out about all of Earth’s landforms. Paired to the fiction title A Long Car Ride.

An introduction to ostriches, including their size, diet, and everyday behavior and highlighting differences between those in the wild and those living in zoos.

The highest law in the United States isn't written in modern English. Yet students are expected to know and understand much of what it says, as well as facts about how and why it was written. Readers are presented with the most important points of the history of the Constitution and its contents in this book. The main content gives simple explanations of important social studies curriculum topics, from the compromises needed to write the Constitution to the Bill of Rights. Fact boxes, a concluding timeline, and historical images offer readers even more detail needed for a full overview of the ...

Visiting Tulum National Park is like going back in time. The Maya lived there long ago. Learn addition as you count the things they left behind. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning addition easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section provides...

Libros profusamente ilustrados, con bellas y expresivas imágenes a todo color y textos directos, claros y concisos que ayudan a los primeros lectores a comprender, amar y cuidar el mundo en que vivimos y que compartimos con nuestros semejantes. Este volumen pone al alcance de los más jóvenes los fenómenos climáticos, es decir, la combinación de diversas temperaturas, lluvia y sol que se van manifestando con relativa estabilidad una estación tras otra. Los científicos están muy preocupados por el calentamiento progresivo de la Tierra, porque tendrá consecuencias muy importantes para...