12-1 Fractions: Modeling Addition of Fractions
12-2 Fractions: Adding Fractions with Like Denominators
12-3 Fractions: Modeling Subtraction of Fractions
12-4 Fractions: Subtracting Fractions with Like Denominators
12-5 Fractions: Adding and Subtracting on the Number Line
12-6 Fractions: Improper Fractions and Mixed Numbers
12-7 Fractions: Modeling Addition and Subtraction of Mixed Numbers
12-8 Fractions: Adding Mixed Numbers
12-9 Fractions: Subtracting Mixed Numbers
12-10 Fractions: Decomposing and Composing Fractions
12-11 Problem Solving: Draw a Picture and Write an Equation