Soy bueno para las matemáticas

Readers will learn about arachnids, insects, arthropods, and even parasites in this fascinating nonfiction reader that has been translated into Spanish. Featuring photos of these tiny creatures (some up to 100 times their normal size!), informational text, a glossary, and an index to aid in vocabulary development, this book will have children eager to learn more about these tiny creatures and the big impact they have on human life!

The varied projects in this volume present readers with more than a dozen lenses through which to learn about the progress and impact of the Industrial Revolution, and the tide of industrialization it unleashed, in the United States. Broad questions prompt readers to engage with major themes in civics, geography, economics, and history. A wealth of background information helps readers understand how these themes play out in the context of the profound shifts in the American economy and society that took place in the nineteenth and early twentieth centuries.

Pido disculpas a la lectoría, si es que acaso la tengo, por el atrevimiento del título, ya que debe ser ella, y no yo, quien califique la buena o mala calidad de mis poemas. He sido juez y parte en esta selección. Cada vez que escribo poesía, o mejor dicho, sirvo de vehículo para que ésta cabalgue cual brioso potro por los prados de los cuatro puntos cardinales, mi memoria, añeja ya de tantos años encima, se siente aliviada de su peso, pues se ha librado de un huésped que reclamaba su libertad. No creo que como poeta haya creado nada, sólo he liberado poemas en prosa y verso que...

Have you ever wondered where inventors get some of their ideas? This answer may surprise you: sometimes the inspiration comes from plants! Learn how some tiny plants have made a huge difference in the world.