Cómo podemos utilizar la polea?

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

Did you know that gases have no size or shape? Gases can become liquids when they get cold. Discover more interesting facts in Gases, part of the States of Matter series of EYEDISCOVER books.

Todavía hoy existe una clara reticencia, por parte de muchos estudiosos, a reconocer el importante papel que las mujeres han jugado en el desarrollo del género fantástico y de terror, bien como lectoras o como creadoras, ignorando la larga tradición de escritoras especializadas en esta narrativa, particularmente en la cultura anglosajona. Aunque fueron dos hombres, Horace Walpole (1717-1797) y Matthew Gregory Lewis (1775-1818) quienes «inventaron» la ficción gótica con sus clásicas historias El castillo de Otranto y El monje –números 10 y 3 de la colección Gótica–, el género...

A 2014 report by the US Department of Education found that 22 percent of students ages twelve to eighteen had experienced bullying. This cogent narrative provides readers with supportive methods to help a friend who is being bullied and to promote a bully-free learning environment at school. Physical, social, psychological, and verbal bullying are examined, as well as cyberbulling. Readers discover the consequences of bullying both as a target and as a bystander. They also consider ways to intervene in a bullying situation, how to seek adult help, and how to be empowered and recover from...

Learn about the Victorian era while building your knowledge of equivalent fractions! Students will learn fractions while engaged in reading about the innovations of the Victorian era. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The glossary, index, and table of contents will further understanding of reading and math concepts, and the full-color images, practice problems, and math graphs and charts make learning math easy, practical, and fun. The Explore Math sidebars and Math...