Numbers in Spanish

Este libro aborda una temática que resulta de sumo interés para quien estudie la confi guración actual del Derecho penal medioambiental en las legislaciones europeas: cómo evitar que entre en contradicción con los principios que deberían guiar la intervención punitiva del Estado. Los objetivos centrales que se plantea el libro son, por tanto, los siguientes: realizar un diagnóstico del estado actual de las infracciones penales destinadas a proteger el bien jurídico medio ambiente, analizar los problemas que plantean desde el punto de vista de los principios penales y proponer un...

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

This high-quality Spanish-language book can be enjoyed by fluent Spanish speakers as well as those learning the language, whether at home or in a classroom. The MathStart series has sold over 1.5 million copies and combines math with fun stories that have real-life applications. In Jacob el constructor, a Level One MathStart, Math becomes child's play as young readers are introduced to the skill of counting on, a first step toward mastering addition. Dos bloques . . . más tres son cinco bloques . . . ¡más diez son quince! ¿Qué puede crear un niño con su imaginación? Este cuento sobre...

An introduction to taipans, snakes from Australia and New Guinea, describes the three different kinds of taipan, physical characteristics, life cycle, habitat, and predatory behavior.