Las más eficaces técnicas de estudio

Presents poetry by the editors and by poets from Puerto Rico, Mexico, and Argentina, along with traditional verse.

Helps youngsters learn about these colorful figures and their fascinating lives through riddles, question and answer games, and activities. PP.

Newton's laws aren't the easiest science topics to digest. Struggling readers likely find understanding them even harder. This volume breaks down the topics of force and motion to its most basic and understandable parts, perfect to introduce to readers having a hard time or students looking to review for class. Written in succinct language, each chapter contains fact boxes and graphic organizers to aid all readers as they move from speed, to velocity and on.

Presents the Aztec tale of how warring gods Quetzalcoatl and Tezcatlipoca helped to form the Earth when they joined together to conquer the goddess Tlatecuhtli.