Brent Peterson 
Bike Race [PDF ebook] 
Add Within 20

Algebra is a foundational concept in the study of mathematics, and readers will delight in learning the principles of operations and algebraic thinking in a relatable and engaging way. Topics such as adding and subtracting within 20, using algebraic principles to solve equations and word problems, and understanding the relationship between addition and subtraction will give beginning math students a firm grasp on basic math concepts. Set at a town’s bike race, this title will prompt readers to relate counting to addition by adding colorful bicycles and other common items seen at a race. This volume satisfies CCSS Math Standard 1.OA.C.5. This book should be paired with "Bryce’s Bike Race" (9781477721155) from the Info Max Math Readers Program to provide the alternative point of view on the same topic.