El ferrocarril transcontinental (The Transcontinental Railroad)

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

Chuma está raro... Y no es porque tenga un solo ojo (¡y de color amarillo!) ni por sus cuernos, ni siquiera porque se comunique con gruñidos... Está raro porque no encuentra a sus amigos: ¿dónde se habrán metido el perro invisible, Barto el Lagarto y Marina la Bailarina? En este libro-disco, además de ayudar a Chuma a reunir a su pandilla, ¡podrás bailotear con canciones muy molonas!

Se trata de una carpeta de anillas con 6 cuadernillos divididos por separadores. 1) Para empezar. 2) Unidades didácticas 1, 2 y 3. 3) Unidades didácticas 4, 5 y 6. 4) Unidades didácticas 7, 8 y 9. 5) Cuadernillo de evaluación. 6) Actividades complementarias.

Únete a la pequeña panda mientras su madre le enseña cómo sobrevivir y le muestra toda la belleza y las maravillas del bosque bambú. Las maravillas de China y las hermosas vistas y sensaciones, la harán más feliz de lo que nunca ha sido antes.