John Lockyer 
All About Sharks [PDF ebook] 

It doesn’t need to be Shark Week to learn all about these fascinating creatures! Learn about the cartilage, gills, teeth, and fins that make sharks unique. You will also learn about different units of measurement in relation to sharks, and how to convert measurement from pounds to ounces, feet to inches, and liters to milliliters. 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 units of measure and build their STEM skills.