Se llamaba Álvaro

Te has preguntado alguna vez; ...por qué el corazón es el símbolo del amor? ¿Quién fue san Valentín en realidad? ¿Por qué se representa a Cupido con los ojos vendados? ¿Por qué las novias lanzan el ramo el día de su boda? ¿Por qué regalamos rosas rojas? ¿Por qué se lleva la alianza en el cuarto dedo de la mano derecha? En este libro encontrarás las respuestas a estas y a otras muchas preguntas relacionadas con el amor.

History is full of unsolved crimes, mysterious disappearances, and strange sightings. Readers will discover some of the most well-known mysteries in history--including Amelia Earhart, Big Foot, and the Salem Witch Trials--in this fascinating, Spanish-translated nonfiction book. Featuring detailed images, intriguing facts, and informational text in conjunction with a glossary of terms and an index, readers will be enthralled from beginning to end! This 6-Pack includes six copies of this title and a lesson plan.

This work goes to the interested ones for the Social Pedagogy and the Social Education as much from the reflection as from the wide field of the social action, approaching its historical evolution, concept, methods and different intervention areas.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!