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...

Introduce students to what it takes to be a good leader using this Spanish-translated nonfiction book. Engaging, primary source documents and images that support the text will inspire children to practice being a good leader! Early readers will build their literacy skills and social studies content knowledge while learning about leadership.

800x600 Boys can be anything they want to be! This timely book joins and expands the gender-role conversation and gives middle-grade boys a welcome alternative message: that masculinity can mean many things. You won't find any stories of slaying dragons or saving princesses here. In Stories for Boys Who Dare to Be Different, author Ben Brooks-with the help of Quinton Wintor's striking full-color illustrations-offers a welcome alternative narrative: one that celebrates introverts and innovators, sensitivity and resilience, individuality and expression. It's an accessible compilation of 75...

Leila tiene seis años. Tiene los ojos muy grandes, el pelo rizado y la piel morena. No tiene hermanos, pero tiene muchos amigos en el colegio. Una dulce historia que nos enseña que las diferencias no existen ¡y que los grandes a menudo tienen más prejuicios que los pequeños!

Este libro es la historia de una mujer que rompe los esquemas tradicionales: la mujer esposa, la mujer guardiana de la casa y de la familia, la mujer madre por instinto. La protagonista, al darse cuenta de que está embarazada , se rebela, está atormentada por la duda de si es acertado dar la vida, si es acertado renunciar a su libertad para dar la vida. Este es un libro para todas las mujeres. Para todos aquellos que se enfrentan al dilema de dar la vida o negarla. Oriana Fallaci se dirige a quien no teme la duda, a quien se pregunta sin descanso el porqué. Profundamente humano porque se...