Si, Poesia

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

In order for any democracy to function well, understanding how and when to compromise is a necessity. This book introduces students to how compromise makes governing possible. Using examples of how compromise works in their own lives, students will gain a better understanding of how compromise work on a larger level. Conversely, readers will also learn that compromise may be the wrong course of action in some situations and that some issues are of such critical importance or high moral worth that standing firm is appropriate.

"Despega hacia el espacio en esta aventura interactiva basada en los alunizajes del Apollo. Desde el despegue del cohete hasta el regreso a la Tierra, este libro de no ficción con solapas y lengüetas despertará la curiosidad de los más intrépidos. ¡Un gran mundo puede ser pequenño!"--Casadellibro

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 primary source book provides firsthand accounts of history that give students personal insights into historical events. Learn about California’s bumpy road to statehood with this Spanish book that builds reading comprehension and social studies literacy. 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...