This carefully selected Grade 4 collection is based on correlations to grade-level Common Core State Standards for mathematics. Books feature a specific mathematics concept, a problem-solving activity, and "Let's Explore Math" sidebars as well as engaging nonfiction text, supporting graphics, photographs, and key vocabulary. Titles in this 10-book collection include: Patterns in Nature (Recognizing Patterns); Patterns Around Us (Recognizing Patterns); The Bake Sale (Multiplying and Dividing); The Bread Book (Multiplying and Dividing); Amusement Parks (Perimeter and Area); Life in the Ocean Layers (Units of Measure); All About Sharks (Units of Measure); Towns and Cities (Perimeter and Area); Basketball Angles (Understanding Angles); and The Winning Angle (Understanding Angles)