Construir un auto de carreras: Comprobar tu trabajo (Building a Race Car: Checking Your Work)

Presents information about super jumbo jets, looking at the history and development of jets, discussing various aspects of design and construction, and exploring different types of jets, including the Concorde and the Airbus A380.

Surveys the life of Nathan Hale, a Revolutionary War hero whose service to George Washington as a spy cost him his life.

Adrián Paenza presenta un nuevo libro con desafíos atrapantes y entretenidos dedicado a sus lectores más jóvenes, porque para la Matemática no hay edad.

Different colors are all around us, and this series explores what they look like and where they can be found. Students identify common colors from everyday life, such as red, blue, green, yellow, and how to describe them. They also learn to classify colors by examining what types of objects display each color. Consistently placed and leveled text helps to ensure subject matter is clearly understood.