351 adivinanzas para jugar / 351 Riddles to Play

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

Surveys the life of the American statesman, lawmaker, writer of the Federalist Papers, and first secretary of treasury under George Washington.

This guide will train the next generation to overcome obstacles and flourish by coaching them to use the internationally renowned Getting Things Done methodology. A productive system at school and as a set of tools for everyday life.

Dirigido a estudientes de ESO y Bachillerato, este manual ofrece modelos de comentario de texto que se basan en tres principios: lectura comprensiva, redacción correcta y debate.