Los ciclos de vida de los insectos (Insect Life Cycles)

"Amphibians have some of the most interesting life cycles on Earth. The metamorphosis frogs, toads, salamanders, newts, and caecilians go through has many steps that readers need to understand and remember. This book offers a concise overview of the general amphibian life cycle as well as representative examples of the many species within the animal group. Most importantly, the accessible language is paired with diagrams of the steps of the life cycle to augment readers' understanding of this topic often found in the science curriculum."

El primer tomo recrea los ultimos dias de Tula, la gran ciudad fundada por los toltecas. El segundo relato de esta obra se refiere a dos comunidades del valle de Mexico: Xochimilco, un pueblo agricola y Mexico-Tenochtitlan, la gran capital del imperio mexica. La narracion recrea la epoca en que muchos viajeros acudian a la gran ciudad para intercambiar sus productos.

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.

Simple text paired with engaging full-color photographs of childrens faces will help children recognize the elements of a happy expression.

Meet six women who did great things. They were leaders in politics, civil rights, healthcare, science, and sports. They helped and inspired others. All of them followed their dreams. Discover the journeys they took. This inspiring Spanish book introduces second grade students to the lives of notable women including Marie Curie, Clara Barton, Wilma Rudolph, Rosa Parks, and more. Engaging images in conjunction with easy-to-read text and basic text features provide readers with an inviting reading and learning experience.