9 complete study paths
Study a real course, chapter by chapter
Choose a named subject and follow its syllabus in order. Each chapter shows what to learn, what to practice, and where a full lesson is already available.
Algebra 1
Study Algebra 1 chapter by chapter, from expressions and linear equations through systems, exponents, polynomials, quadratics, and data modeling.
AP high school calculusAP Calculus AB
Study AP Calculus AB in the official unit order, from limits and derivatives through integrals, differential equations, and applied accumulation.
College introductory and adult refresherIntroductory Statistics
Study introductory statistics chapter by chapter, from data collection and probability through inference, regression, and a first look at ANOVA.
AP Biology
Study AP Biology through the official 8-unit sequence, from biomolecules and cells to genetics, evolution, and ecosystem dynamics.
Advanced high school (AP)AP Chemistry
Study AP Chemistry by the official 9-unit sequence, from atomic structure through equilibrium, acid-base chemistry, and electrochemical systems.
High school algebra-based introductory physicsAP Physics 1
Study AP Physics 1 through the current 8-unit sequence, from motion and forces through rotation, oscillations, and fluids.
Excel for Business Analysis
Learn Excel workflows for business analysis, from clean workbook setup through formulas, data shaping, KPI reporting, and dashboard handoff.
Beginner to intermediateSQL for Data Analysis
Learn PostgreSQL data analysis in 10 chapters, from core SELECT queries through joins, aggregation, windows, optimization, modeling, and transactions.
Beginner to intermediatePython Data Automation
Learn practical Python step by step, from control flow and functions to pandas analysis, API integration, automation scripts, and testing.