Barredoras De Nieve/snowplows

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.

What makes something a good value? Why is it important to use money wisely? How will creating a budget help you purchase a new bike? This engaging Spanish book will teach students financial literacy through the use of real-world examples while incorporating nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of contents will...

El padre de Ki-Fer está herido y nadie sabe cómo curarlo. La única esperanza es el Agua de la Vida. Las leyendas cuentan que un guerrero la encontró hace muchos años, pero no se sabe dónde. ¿Podrá Ki-Fer encontrar el camino para llegar a ella? Una novela que refleja el arduo camino de la maduración personal.

Este diario original, sin censurar, de una adolescente juda̕ afincada en la ciudad neerlandesa de Rt̤erdam, arroja una nueva luz sobre la historia de los judo̕s en la Segunda Guerra Mundial. Una peripecia vital similar a la de Ana Frank pero