Un Submarino de Aire y Otros Experimentos

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

El arca enseña acerca del pecado y la redención a través de las historias de siete animales dentro del arca de Noé. Cada página contiene ilustraciones coloridas y muy divertidas que captarán la atención de los pequeños. El arca cuenta con música, poesía y videos disponibles en línea para complementar la narración de las historias en este libro. El arca teaches about sin and redemption through the stories of seven animals inside Noah's ark. Each page has beautiful, colorful, and modern illustrations. El arca also has music, poetry, and videos available online to complement the...

Aquí se presentan historias favoritas de la Biblia narradas especialmente para la hora de la lectura. En cada página, las palabras sencillas y respetuosas cobran vida con bellas y alegres ilustraciones. Best-loved Bible stories are especially retold for story time. The simple and respectful words are brought to life with bright and appealing illustrations on every page.

How do you truly engage students in learning history? When students make personal connections to the subject, they're much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source biography focuses on the life and times of Junípero Serra, the Franciscan missionary who created missions that stretched from San Francisco to San Diego. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to ...