Christine Dugan 
Cazadores de tornados [PDF ebook] 
Medidas de tendencia central

Tornado chasers follow these dangerous, unpredictable storms to learn more about them. They need to know about measures of central tendency in order to better understand the data they collect during the tornado. Read about the dramatic moments before and during a tornado and analyze data to understand more about these exciting storms. With vibrant photos, math charts and diagrams, grade-appropriate text, and informational text features to help navigate the text, students will learn practical, real-world applications of math skills as they learn new mathematical concepts and build their STEM skills.