¿Qué le pasa al microscopio?: Resolver el problema (What's Wrong with the Microscope?: Fixing the Problem)

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

In 1848, gold was discovered in California, attracting over 300,000 people from all over the world, some who struck it rich and many more who didn't. Hear the stories about the gold-seeking 'forty-niners!' With black-and-white illustrations and sixteen pages of photos, a nugget from history is brought to life!

There are many steps in the nitrogen cycle that include difficult concepts and words: denitrification, prokaryotes, ammonia, and more. With the help of this understandable book, even struggling readers will grasp this cycle of nature. Low-level language, fact boxes, and an extended glossary provide readers with essential vocabulary explanations that allow them to further understand each step of the cycle. Full-color diagrams aid readers' comprehension as they move through the cycle from start to finish, and then around again.

Introduces Basic Scientific Principles Of Temperature And Shows Readers How To Do Age-Appropriate Simple, Experiments And Projects.

Una cuidada selección de chistes, acertijos y adivinanzas, a las que se le añaden trabalenguas, retahílas..., para que el pequeño lector de la casa aprenda mientras se divierte, además de desarrollar el ingenio y la imaginación. Con las soluciones a las a