La historia de: los sistemas numéricos: Valor posicional

Learn the history of number systems with this engaging Spanish book! This text combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn place value while reading about the number systems of the Egyptians and Romans, and also learn important vocabulary terms like cuneiform, binary systems, roman numerals, and more! The full-color images, math charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and...

'No Means No!' is a children's picture book about an empowered little girl who has a very strong and clear voice in all issues, especially those relating to her body and personal boundaries. This book can be read to children from 3 to 9 years. It is a springboard for discussions regarding children's choices and their rights. The 'Note to the Reader' at the beginning of the book and the 'Discussion Questions' on the final pages, guide and enhance this essential discussion. It is crucial that our children, from a very young age, are taught to have a clear, strong voice in regards to their...

Este libro presenta una serie de magníficas fotografías tomadas por algunos de los mejores fotógrafos del mundo dedicados a registrar imágenes de la vida silvestre. Estas atractivas imágenes están acompañadas de textos sencillos y fácilmente comprensibles, presentando una gran diversidad de especies animales en actitudes muy divertidas, en medio de su entorno natural. De esta forma, los niños podrán reconocer que los animales ûal igual que ellos mismos y las demás personasû también desarrollan actividades entretenidas, comparables a los juegos y la recreación. En el mundo...

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the creation of the Transcontinental Railroad. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with information and primary source maps, images, and...