Experimentos sorprendentes con la luz

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

Everyone has times when they feel shy. Knowing how to recognize when we feel shy is an important tool in self-acceptance. Learn ways in which we can understand ourselves and our friends in this nonfiction Beginning-to-Read book about feeling shy. An early social and emotional learning book with Spanish-only text, including a word list. Perfect for an early introduction to Spanish.

Desde la aparición de su libro más emblemático, el autor ha recibido miles de cartas y correos electrónicos en los que los lectores le hacían toda suerte de preguntas. Hoy, impulsado por esa "fuerza" que, siempre lo acompaña, el periodista e investigador navarro ha decidido responder públicamente. Y lo ha hecho a cuerpo descubierto, directa y valientemente, sin rodeos ni concesiones. En este texto, Benítez selecciona las 101 preguntas más duras, tiernas, divertidas y profundas. Si su mente no dispone de un mínimo de tolerancia, no lea este libro. Tras un largo y duro peregrinaje por ...

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these feathered dinosaurs face to face: The Caudipteryx had feathered arms and a tail that looked like a pom-pom! The Sinovenator may have used colorful feathers to attract a mate! The Microraptor may have used its feathers to glide...