Each chapter of contains one essential unit from Algebra I. As you explore the story, you will practice: is an original and cleverly designed interactive story for students learning Algebra I. Read the story, make your choice, and solve a math problem to get your page number. All four chapters include "Adventurer's Advice" to help students navigate their way through the workbook. Dregg also comes with a free online download, with more algebra problems for readers wanting extra practice. Choose Your Own Adventure is the bestselling gamebook series of all time. Empowering generations of children through choice, it is widely commended for its appeal to reluctant readers.