Trenes de Alta Velocidad (Bullet Trains)

An introduction to the educational background, equipment, clothing, and various duties of a construction worker.

People have been sending mail for a long time. But how they do it has changed a lot! Read about the history of mail as you learn to collect data. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning data measurement easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section...

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.

El presente libro se orienta a profundizar en los conocimientos sobre el proceso de producción escrita y a apoyar la labor creadora de la palabra con la perspectiva de producir textos que puedan convertirse en libros. El autor ha recogido sus experiencias relacionadas con la composición escrita de sus libros, para compartirlas con quienes tienen el oficio de jugar con las palabras, las ideas y los textos o de pronto están por escribir una obra científica, expositiva, divulgativa, literaria o de cualquier otra índole. Concibe el escribir como un acto creador de la mente, el cual incluye...