El fantasma negro

Immigrants help make the United States a special place. Learn all about the history of immigration to the United States as you sharpen your data measurement skills! This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems, sidebars, and math diagrams extend the learning experience and provide multiple...

An elementary introduction to the workings of the human body, the skeleton, skin, circulation, and nervous system.

Provides an introduction to the concept of patterns, using examples from the coats and feathers of animals as well as the designs some make.

A biography telling the life story of Revolutionary War hero and spy Nathan Hale. Written in graphic-novel format.