Grade level

Grade 9

Algebra I, Geometry & abstraction begins

Courses available at Grade 9

Grade does not determine course. A Grade 9 student may study any of these — or an accelerated sequence beyond.

Linear equations, systems, inequalities, functions, polynomials, factoring, and quadratics.

Transformations, congruence, similarity, proof, right triangles, circles, area, and volume.

Data, distributions, inference, randomness, expected value, and statistical reasoning.

Function families, transformations, composition, inverses, and modeling with functions.

Representing real situations mathematically, assumptions, validation, and interpretation.

Grade 9 thinking ladder

Understand→Represent→Model→Plan→Solve→Verify→Explain→Generalize→Transfer→Create

Curriculum connection

Explore the full unit and topic structure for this grade, with prerequisite, next-level, and competition links.