Medida del tiempo en las carreras (Timing Races) (Spanish Version)

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.

Centrada en el ambiente de una pequeą ciudad sureą y en un grupo de personas que- en torno a la figura emblemt̀ica del sordomudo John Singer, el personaje ms̀ conseguido de esta genial autora- tienen en comn︢ la esencial soledad, su marginalidad y el rechazo de una sociedad que les ignora.

Expressive language by the Mexican ballerina, choreographer, and teacher explores what she calls the "poetry of images" in Puebla--a classical ballet and an interpretative modern dance with multiple people forming a slithering snake across the stage--accompanied by a series of stunning black and white photographs that capture the variety of expression and the fluid grace of the dancers.

Desastres naturales (Natural Disasters) is an exciting book about how estimations and predictions help save lives in natural disasters. Students will learn critical math concepts as they are engaged in reading about the properties of natural disasters. Practice problems and mathematical diagrams help students reinforce the importance of mathematics. This Spanish title includes a glossary, an index, engaging images, and easy-to-read text to help students build their math and reading skills.