# Conceptual Foundations

Conceptual Foundations 1: Ratios and Proportional Relationships

Conceptual Foundations 2: The Number System -- Division of Fractions

Conceptual Foundations 3: The Number System -- Computational Fluency and Common Factors and Multiples

Conceptual Foundations 4: The Number System -- Understanding Rational Numbers

Conceptual Foundations 5: Expressions and Equations -- Algebraic Expressions

Conceptual Foundations 6: Expressions and Equations -- Equations and Inequalities

Conceptual Foundations 7: Expressions and Equations -- Dependent and Independent Variables

Conceptual Foundations 8: Geometry

Conceptual Foundations 9: Statistics and Probability