Círculos matemáticos

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.

When her mother was worn out from caring for her five sisters, her father gave her lessons in brushwork and color. When polio kept her bedridden for nine months, drawing saved her from boredom. When a bus accident left her in unimaginable agony, her paintings expressed her pain and depression - and eventually, her joys and her loves. Over and over again, Frida Kahlo turned the challenges of her life into art. Now Jonah Winter and Ana Juan have drawn on both the art and the life to create a playful, insightful tribute to one of the twentieth century's most influential artists. Viva Frida!

Este apasionante estudio de Maurizio Viroli, que reivindica al tan vapuleado Nicolas Maquiavelo (1469-1527) como uno de los mas inteligentes historiadores y pensadores politicos de todos los tiempos, es el mejor portico de la nueva coleccion Tiempo de Memoria, en su vertiente de Historia. Fundador de la moderna teoria politica, astuto diplomatico al servicio de su Florencia natal y desapasionado observador de los asuntos humanos, Nicolas Maquiavelo ha dado su nombre a una forma de hacer politica. Se le ha asimilado a la figura de un defensor a ultranza de la idea segun la cual el fin...

Usa las matemáticas: Agrúpalo (Use Math: Group It) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on grouping, children will look at similarities to figure out which items should be grouped together. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to make connections on what is the same. Aligned with state standards, Usa las matemáticas:...