Trenes de Alta Velocidad (Bullet Trains)

Muchas personas dependen de los cangrejos azules de la bahía de Chesapeake para sus trabajos. Pero la sobrepesca y los cambios en los hábitats de los cangrejos azules han reducido su número. Aprenda cómo los científicos han intervenido para estudiar estas bellezas azules para que puedan mantener una población de cangrejos saludable. Creado en colaboración con la Institución Smithsonian, este libro en español despierta la curiosidad sobre los temas de STEAM a través de ejemplos del mundo real. Cuenta con un desafío STEAM práctico que guía a los estudiantes de inglés a través de...

Small and large, short and tall, little and big, these are all words that help us describe size. This math concepts volume doesn't just "tell"; it shows early learners the difference between concepts, introduces them to synonyms, and helps them learn to sort a group according to size. Classification is an important concept for the early elementary mathematics student, but the text and photographs in this book, including dogs, fish, and birds, make it fun!

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Everyone needs to get along well with others. We need to share, listen, and be kind. Let's explore ways to get along well with others! The Me Pregunto (I Wonder) series is perfect for young learners in prekindergarten through grade 2. These 16-page books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.