10 grandes rutas del mundo

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

Este libro de lectura guiado de Nivel Uno examina cómo se celebra la Navidad. Los alumnos desarrollan su capacidad de lectura y reconocimiento de palabras mientras aprenden sobre los preparativos, las tradiciones y los festejos de la Navidad. This Level One guided reader examines how people celebrate Christmas. Students will develop word recognition and reading skills while learning about Christmas preparations, traditions, and celebrations.

Think there's just one fairy tale with a beautiful girl and an evil stepmother? Think again! Cultures all around the world have their own Snow White stories. Visit Albania, Germany, Mozambique, and Turkey, and find out who meets 40 dragons instead of "seven dwarfs," and on whose forehead a bright star shines. Fully translated Spanish text.

A teen is trapped in an abusive relationship, and a friend wants to help. This comprehensive book shares how to spot the warning signs of an abusive relationship, how to be supportive of a friend who needs help, and what kind of resources are available to both the helper and the victim. It may be scary to deal with a friend in an abusive situation, but this informative guide will be a strong tool in letting readers know how practical ways that they can navigate a difficult situation and give their much-needed support.