Imagine printing a human heart with the click of a button. Sound impossible? Scientists and doctors are getting closer to transplanting human body parts made from 3-D printers. Read how doctors are using 3-D printing to change lives as you add and subtract fractions.

By integrating math and literacy skills, and providing real-world examples of problem solving, this math reader allows students to explore STEM concepts in meaningful ways.

• The DOK-leveled Math Talk section includes questions that facilitate mathematical discourse and activities that students can respond to at school or at home.
• Let's Explore Math sidebars and the extensive Problem Solving section, and the clear mathematical charts and diagrams provide numerous opportunities for students to practice what they have learned.
• Text features such as a glossary, index, captions, and a table of contents increase understanding and build academic vocabulary.