Free AP Computer Science Principles curriculum mapping all five Big Ideas (CRD, DAT, AAP, CSN, IOC) to a 90/180-day pace, with printable teacher day guides covering every class day.
Common questions
Is the AP CSP curriculum free for teachers?
Yes. The full AP CSP curriculum and pacing guide is free to use. Every student lesson is free as well; an optional $9.99 lifetime membership adds mock exams and AI tools, and classroom licenses add lockdown quizzes, assignments, analytics, and teacher answer keys.
Does it offer both 90-day and 180-day pacing?
Yes. You can view the curriculum on a 90-day (single-semester or block) schedule or a 180-day (full-year) schedule, with daily objectives, procedures, assessments, and exit tickets for each day.
Is the curriculum aligned to the College Board CED?
Yes. It is mapped to the current AP Computer Science Principles Course and Exam Description and covers all five Big Ideas: Creative Development, Data, Algorithms and Programming, Computing Systems and Networks, and Impact of Computing.
Who wrote the curriculum?
It was written by the founder of CS++, an AP Computer Science teacher with 20+ years in the classroom, and is published by Yellow Dart Publishing (Kevin P Hare LLC).
Are answer keys and assessments included?
Yes. The course includes auto-scored quizzes and mock exams with explanations, plus a printable resource library of handouts, worksheets, activity cards, rubrics, unit overviews, and a fill-in guided-notes packet for every unit that is free with a free CS++ account, and an editable PowerPoint (.pptx) slide deck for every unit — organized by concept rather than by day, with speaker notes on every slide — which is free with that same free account. Answer keys are a separate teacher-only PDF, so the student copy you hand out never contains them — the handout and worksheet keys, the lesson-quiz answer-key PDFs, and lockdown assessments all come with a CS++ classroom license.