Kristy Stark 
historia de los telefonos [PDF ebook] 
Fracciones

Students will gain hands-on experience working with fractions and decimals while reading about the history of the telephone. This book seamlessly integrates the teaching of math and reading, and uses real-world examples to make students comfortable working with fractions. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they’ve learned to their daily lives. Text features include captions, a glossary, an index, and a table of contents to increase students’ vocabulary and literacy skills and their interaction with the text. Math Talk poses problems for further thinking, requiring students to use their higher-order thinking skills.