54 books • 13 series
Fun and Games: Comic Conventions: Division (Mathematics Readers)
Money Matters: Young Entrepreneurs: Addition and Subtraction (Mathematics Readers)
The History of Telephones: Fractions (Mathematics Readers)
Conquering Third Grade (Conquering the Grades)
Conquering Second Grade (Conquering the Grades)
180 Days of Problem Solving for First Grade (180 Days of Practice)