Primer plano 3

La hibernación es un ciclo que algunos animales hacen cada año. La mayoría de la gente sabe que los osos hibernan. ¿Pero por qué hibernan? ¿Y qué otros animales hibernan? Hibernation is a cycle that some animals go through every year. Most people know that bears hibernate. But why do they hibernate? And what other animals hibernate?

It is the third Monday in January and school is closed. But do you know why? It's Martin Luther King Jr. Day. Turn the pages of this book to find out what dream Dr. King shared with the world, who Mohandas Gandhi was, how one brave woman helped Martin Luther King Jr. change history. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.

The Earth is a remarkable place! In the universe, Earth is the only place that we know for sure has life and non-life. Learn all about interdependence in ecosystems with this Spanish science reader that brings the power of science and informational text to students at a level they can understand. Introduce students to STEM topics and new vocabulary terms like oxygen cycle, stimuli, homeostasis, and micro-organism with this nonfiction book that is aligned to state and national standards. The leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity...

La mejor forma de introducir a los lectores jóvenes a la fascinante vida del genio del Renacimiento, Leonardo Da Vinci famoso en su tiempo como pintor, inventor, y filósofo, era también un músico, escultor, e ingeniero para los duques, los papas, y los reyes. Este espléndido libro no solo despertará el interés de los amantes de la ciencia, la historia y la enseñanza con su elocuente tributo a una mente dotada de una energía incontenible, sino que despertará también el potencial que yace en la imaginación de todo el que posee una mente inquieta. Roberto Byrd celebra este genio...