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(back cover) Las tres erres nos ense an diferentes maneras de disminuir la contaminaci n ambiental. Cuando reducimos el n mero de cosas que tiramos, como las bolsas de pl stico, ayudamos a que la tierra donde vivimos est(c) limpia y que el agua que bebemos sea fresca. Cuando reutilizamos cosas, por ejemplo, si usamos ropa que a nuestro hermano mayor le queda chica, ayudamos a conservar recursos. Cuando reciclamos papel, latas y botellas vacas y las llevamos a centros de reciclaje, estos objetos se aprovechan para hacer cosas nuevas. Las tres palabras que comienzan con la letra R nos ense an a ...

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

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.

Making money takes hard work and determination. This informative, Spanish-translated nonfiction book encourages readers learn some of the basic skills for earning and saving money through moneymaking projects, entrepreneurship, patents on their own creative ideas, and fund-raising. With an emphasis on mathematic concepts such as interest and percentage, readers will have the tools they need to kick start responsible personal finances. Through bright images, informational text, accommodating charts and diagrams, readers will be inspired to earn and save money in ways they find fun and...