Mundo Insecto

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. Students will learn about California’s gold rush by examining maps, letters, images, and art from that time. 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 know at their grade level. Packed with information and primary...

When we look up at the night sky you can see millions of stars, but what do you think we could see in space if we left Earth? If we could hop into a special ship and blast off, traveling billions of miles away from Earth, we’d see the Milky Way galaxy. In this book, readers take an incredible journey through that galaxy, exploring the universe and learning how it was formed and what will one day happen to these enormous groups of stars. From mysterious dark matter to the black holes at the center of galaxies, readers will also dive into the mysteries of the universe scientists have spent...

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

La publicación del primer volumen de esta serie sacudió al mundo y les mostró a las Niñas Rebeldes de todo el planeta que no hay fronteras ni límites para que cumplan sus sueños y sean lo que quieran ser. Y, para que siga la rebeldía, hemos preparado para ellas esta edición con la historia de cien colombianas y ecuatorianas extraordinarias. Junto con un grupo de talentosas ilustradoras, investigadoras y escritoras recolectamos las historias de mujeres de Colombia y Ecuador, de todas las épocas y profesiones, para rendir homenaje al gran legado de rebeldes que ha levantado la voz para ...