Desde mi piel

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...

¿Hay vida en otros lugares del Sistema Solar? ¿Cuántas civilizaciones pueden existir en la galaxia? ¿Nos conoceremos algún día? Desde pequeños, nos fascinan las estrellas y los planetas. En seguida nos preguntamos si en su superficie podría haber criaturas, como tú y como yo, preguntándose si en otros lugares de la galaxia habrá seres como ellos... La avalancha de preguntas es imparable: el ser humano es curioso por naturaleza. Si alguna vez te has hecho alguna de estas preguntas, este libro es para ti. De la mano de Alex Riveiro, autor de Hacia las estrellas. Una breve guía del...

Not everyone in the United States is eligible to vote. Voting rules are different in every state. For federal elections, however, voters must have U.S. citizenship to vote. Voters must be 18 on or before the next Election Day to cast their ballot. People must live in their state for a certain period of time before being eligible to vote. All people wishing to vote must be registered by a certain date depending on which state they live in. This book explains who is eligible to vote in U.S. elections as well as who is not eligible to vote. Readers will make connections to the text through...

Narwhals are often called the "unicorns of the sea." But these fascinating creatures are members of the whale family. Read all about narwhals as you practice addition. 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...