AP Computer Science Principles

That app you use every day isn't magic—it's a creative language you're about to learn how to speak.

27 days — make them count.

Thursday, May 14, 2026

Start Unit 1 — it's free →Explore the course ↓

67%Multiple ChoiceMultiple choice section70q · 120 min

33%Free ResponseCreate performance task and written response2q · 60 min

of students scored 4 or higher in 2025

175,174 test-takers

2,181 colleges grant credit

5 · 11%

4 · 20%

3 · 31%

2 · 21%

1 · 17%

2.9 avg

543 (passing)21

Computing is not about machines.

It's about abstraction. AP CSP teaches you to think computationally: how to decompose problems, evaluate algorithms, and reason about the systems that now run the world.

Algorithms and Programming carries the heaviest exam weight — students who can't trace logic through unfamiliar code lose points fast.

The AP exam places significant emphasis on Algorithms and Programming, which accounts for the largest portion of the exam weight. Students should prioritize mastering these concepts, as they are crucial for success.

How the course builds

Creative Development · Data · Algorithms and Programming · Computer Systems and Networks · Impact of Computing

Creative DevelopmentIntroduces the importance of innovation and problem-solving as the foundation for computational thinking.

10–13% of exam

DataExplores how data is collected, analyzed, and utilized to inform algorithmic processes.

17–22% of exam

★ Hardest unitAlgorithms and ProgrammingHighlights the core mechanisms that drive computational solutions, building on data insights.“Requires understanding of complex algorithmic logic and programming concepts.”

30–35% of exam

Computer Systems and NetworksProvides an understanding of the infrastructure for executing and sharing computational solutions.

11–15% of exam

Impact of ComputingReflects on how technological advancements reshape society and ethical considerations.

21–26% of exam

Algorithms and Programming is where most students hit a wall.

Requires understanding of complex algorithmic logic and programming concepts.

Students often lack prior experience with programming languages and logical problem-solving.

What You Need

GeometryAny introductory programming or coding elective (e.g., Scratch, Python basics, or Code.org courses)Statistics or Probability (introductory level)Algebra 1English or Language Arts (grade-level proficiency)Introduction to Computers or Digital Literacy

Start this course free. Upgrade anytime.

Unit 1 free · Course Pass $15 · All-Access $45 through May 31 —

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