Balanceate, Perezoso! / Swing, Sloth!

A human hand is found in the zoo's elephant enclosure. The rest of the teacher and ardent environmentalist turns up on the lawn. Although admired by his students, nearly everyone else seems to have a reason to want him dead.

Por qué hay día y noche? Porque la Tierra gira sobre sí misma en 24 horas y porque el Sol no puede iluminar más que un lado a la vez.El cielo, las estrellas y la noche ilustrado por Christian Broutin, Henri Galeron y Pierre-Marie Valat, es un libro de la colección Altea Benjamín, la enciclopedia para responder a las preguntas de los niños que ya leen solos. ENGLISH DESCRIPTION Why is there day and night? Why does the Earth rotate on its axis and comes full circle in 24 hours? Why does the Sun only illuminate one side of the Earth at a time? Fascinating information about space and...

The skeletal system is made up of bones. They support and protect your body and help it work. Some bones help you run, or pick up a pencil; others protect organs, like the skull, which protects your brain. Learn about bones, joints and more in this informative book.

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...