Cómo podemos utilizar la polea?

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

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

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Conceptos y términos económicos para adolescentes y jóvenes adultos ¿Cuál fue el origen de las monedas? ¿Qué pasaría si de repente un banco decidiera producir más dinero? Economía para mentes inquietas resuelve todas estas dudas y muchas otras: desde conceptos como el funcionamiento de los mercados y las leyes de la oferta y la demanda a aspectos más cotidianos como las divisas, el control del gasto o el ahorro. Hasta los conceptos más oscuros son fáciles de entender, gracias a un texto cercano, magníficas ilustraciones y esquemas visuales. Economía para mentes inquietas es...

Colección infantil de la psicóloga Andrea Cardemil sobre el control de emociones en niños y niñas. Como todos los niños y niñas, Filipo a veces se enoja. A veces puede ser un enojo chiquito que se le pasa rápido, y en otras uno tan grande que demora en calmarse. Descubre cómo mamá y papá oso lo ayudan.

Born into slavery, Frederick Douglass relied on his own determination and ingenuity to carve a path to freedom. Once free, he dedicated his life to improving the lives of others and fighting for justice and equality. This inspirational Spanish biography uses primary sources to engage students in learning about the fascinating life of Frederick Douglass. Students will build their literacy skills as they are immersed in social studies content. Text features include a glossary and an index to increase comprehension and academic vocabulary.

Introduce students to the scientific method with this Spanish science reader that features easy-to-read text. This book teaches important scientific topics and vocabulary terms including hypothesis, data, experiment, conclusion, method, research, and more. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.