At fifteen, imagine an accelerated feast of AoPS math: finish Prealgebra, then glide into Introduction to Algebra, while a concurrent Introduction to Geometry simmers gently alongside. Each chapter is a plate—problems first, solutions next—inviting hands-on tasting. Alcumus's adaptive exercises and the free video pantry season every lesson. Prealgebra sharpens arithmetic, fractions, exponents and counting; Algebra unfolds equations, quadratics and functions; Geometry serves similar triangles, circles and transformations. The pace is brisk yet deliciously manageable: weekly menus of problems, daily Alcumus practice, and targeted videos, designed to build deep problem-solving appetite and impeccable mathematical flavor—confident, curious, and quietly triumphant each step.