El dinero y el comercio en nuestro mundo: Read-Along eBook

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.

Is conversational Spanish turning a little too tricky for you? Do you have no idea on how to order a meal or book a room at a hotel? If your answer to any of the previous questions was ‘Yes’, then this book is for you! If there’s even been something tougher than learning the grammar rules of a new language, it’s finding the way to speak with other people in that tongue. Any student knows this – we can try our best at practicing, but you always want to avoid making embarrassing mistakes or not getting your message through correctly. ‘How do I get out of this situation?’ many...

Este libro es un cancionero sencillo para colaborar en la formación musical de la infancia sin pretensiones de establecer ninguna metodología convencional, propiciando que los elementos musicales básicos queden profundamente arraigados a través de la creatividad.

María no puede ir al colegio porque tiene mucha tos. Sus padres trabajan, así que la solución es contratar a Gerda como canguro. Pero, lo que María no entiende es que sus padres la hayan elegido. ¿Es que nadie se da cuenta de que es una bruja? Un libro que refleja la importancia de no dejarse llevar por las primeras impresiones.