Tras las huellas del ADN

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...

Germs Are Not for Sharing/Los gérmenes no son para compartir paperback (ages 4–7): Sneezes, coughs, runny noses, spills, and messes are facts of everyday life with young children. This book teaches kids what germs are, what they do, and why it’s so important to cover them up, block them from spreading, and wash them down the drain. Includes tips for parents and caregivers.

This book introduces the reader to the nighttime world of the rat, including its habitat, activities, diet, and the unique things that it does.

Una pintoresca y entretenida introducción que explica las costumbres y razones del culto católico. Visual e informativo, Lo que se puede ver dentro de una iglesia católica contiene ilustraciones a toda página y concisas descripciones de lo que ocurre, los objetos que se utilizan, el clero y las personas laicas que desempeñan funciones específicas, y el propósito espiritual de los creyentes. Ideal tanto para niños como para maestros, bibliotecarios, clérigos, líderes laicos y padres que desean desmitificar las celebraciones y ceremonias de la iglesia durante el año, así como...