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If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.

Estas novedosas propuestas lúdicas para el desarrollo curricular de la educación física son un magnífico ejemplo de cómo se debe tratar el juego motor. En este libro los profesionales de la educación física encontrarán, a lo largo de tres extensos capítulos, un amplio repertorio de experiencias lúdicas bien sistematizadas, originales, fáciles de aplicar y adecuadas a la edad de los alumnos. El autor clasifica los juegos en tres grandes apartados que responden a objetivos y necesidades diferentes: los juegos motores y de acondicionamiento con material alternativo, cuya finalidad es...

Engineers have built some incredible things. But with every new feat, there is failure. Readers will learn about engineering feats like the Titanic, the Hindenburg, the Hoover Dam, and more in this engaging nonfiction title that has been translated into Spanish. This title features brilliant images, charts, and intriguing facts in conjunction with informational text and mathematic skills to keep readers active and engaged.

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.