La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

Flag football is a fun sport that anyone can play. Read about flag football as you learn subtraction. 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 subtraction 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 additional learning and practice opportunities. ...

A force is a push, a pull, or a turn. Every force has an equal and opposite force. Forces are always with you! They are all around us. Learn about forces with this Spanish science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.

«Ni en vida de Pessoa ni póstumamente ha aparecido un volumen con el título de El regreso de los dioses, a pesar de que el poeta acariciase la idea de publicarlo desde el otoño de 1917», explica Ángel Crespo, responsable de la edición y la traducción del presente libro. Nos hallamos, pues, ante un acontecimiento de singular importancia: la reconstrucción, en la medida de lo posible, de un libro proyectado por Pessoa, esencial en su trayectoria, y disperso hasta hoy en materiales sueltos. El neopaganismo, el sensacionismo, el sebastianismo son algunos de los principales puntos de...

Even as the world changes, skilled labor will always be needed. There's nothing quite like the ability to create things with your skills and your own hands. Carpenters use their skills to build things we use every day, including items such as furniture, buildings, and bridges. They read building plans, choose materials, design, and create. This book teaches kids that to become a carpenter, you have to use a lot more than a hammer and nails; you need your brain too. Photographs and diagrams enable readers to make key connections with the text.