Courses

A full curriculum from PreAlgebra through AP Calculus, three computer science courses, and Digital SAT prep. Free for teachers and students.

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Math Courses

SAT Prep

Digital SAT Math and Reading & Writing, with a study plan.

1,959 problems

AP Calculus

AB and BC, from limits through series, with answers typed as expressions.

1,311 problems

Precalculus

Functions and trigonometry, in the depth a first calculus course expects.

1,129 problems

Geometry

Proof, construction, and measurement, with figures built step by step.

829 problems

Algebra 2

Quadratics through logarithms, with answers graded on form as well as value.

1,473 problems

Algebra 1

Expressions, equations, and linear functions in four representations.

1,165 problems

PreAlgebra

Grade 7 in full plus most of Grade 8, ending ready for Algebra 1.

1,565 problems

Computer Science Courses

AP Computer Science A

A free AP Computer Science A curriculum in Java, with slides, labs, and game projects.

1,112 problems

AP Computer Science Principles (Python)

A free AP CSP curriculum in Python, with slides, labs, and projects.

884 problems

AP Computer Science Principles (JavaScript)

The same AP CSP course, for classrooms that teach JavaScript.

917 problems