Matemáticas Nivel Medio

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

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!

Volume 3, Bringing Daily Actions to Life, features procedures on how to draw Anime characters in a variety of dynamic poses, including instruction on using angles to suggest movement.

In the last one hundred years, Earth’s average temperature has risen one full degree. That might not sound like much, but it affects Earth’s oceans, land, plants, and animals. Learn all about global warming, the carbon cycle, the greenhouse effect, and weather and climate with this Spanish science reader that brings the power of science and informational text to students at a level they can understand. This nonfiction book introduces students to new concepts, vocabulary terms, and STEM topics. With detailed images and fascinating sidebars, the leveled text supports students reading at...