Words Are Not for Hurting / Las palabras no son para lastimar

¿Sabías que los dragones de Komodo son los lagartos más grandes del mundo? Usan la lengua para oler a otros animales. Aprende estos y otros sorprendentes datos en Yo soy el dragón de Komodo. Did you know that Komodo dragons are the largest lizards in the world? They use their tongues to smell other animals. Learn these and other impressive facts in I Am a Komodo Dragon.

Everyone has heard of Albert Einstein--but what exactly did he do? How much do kids really know about Albert Einstein besides the funny hair and genius label? For instance, do they know that he was expelled from school as a kid? Finally, here's the story of Albert Einstein's life, told in a fun, engaging way that clearly explores the world he lived in and changed.

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...

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).