Un día en el zoológico (Day at the Zoo) (Spanish Version)

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

A selection of children's poems by Rafael Alberti, Federico García Lorca, Ramón Gómez de la Serna, José A. Goytisolo, Nicolás Guillén, and others.

In this book, children learn how we can tell if something is shiny or dull and which materials have these properties.

Ogbi Ugbu ha venido de África. En una patera. Tan sólo tiene diez años y ya ha recorrido su país escondido en la noche. Ha sentido el cansancio, el miedo y el hambre. Y la tristeza. Pero en España ha hecho muchos amigos y es muy feliz. Quizás cuando se reúna con toda su familia, lo será del todo.