College application academic evidence · reasoning and revision · Seoul and online
Exam prepAimed at an AP, IB, or IGCSE exam score.
AP Computer Science Principles
Grades 9-12: how computers represent data, programming...
- Free consultation and level check
- Apgujeong classroom or online
- One-to-one or small group
- Registered academy no. 11882
Is AP Computer Science Principles a good fit for high school students in Grades 9-12?
AP Computer Science Principles is a good fit for students in grades 9-12 who are interested in how computers represent data and programming with lists and procedures. CIT offers online or in-person lessons in Apgujeong, Gangnam, Seoul, in one-to-one or small-group formats. Students make a number-guessing game and a dice simulation, a Create task program with a help log, and big-idea error notes from a mock exam.
Students cover the five big ideas of AP Computer Science Principles in order: program planning and debugging, binary and data analysis, programming with lists and procedures, internet protocols, and the impact of computing on society. The Create performance task program is code the student writes and can explain, with any outside help logged; tutor feedback goes only to written responses about a separate practice program. The course ends with a multiple-choice mock exam and a review of errors by big idea. Alongside the score, the student builds the academic evidence an application can use: how they applied a core idea, why an answer failed, and how they revised it.
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My child loved that the teacher explained things really well and made the lesson enjoyable. We are very glad too.
- Age group
- Grades 9-12
- Academic subject
- Computer Science & CodingBrowse subject
- Course type
- Exam preparation
- Format
- Online or Apgujeong in person · one-to-one or small group
- Teaching language
- Korean by default, with complete English materials
- Curriculum status
- Lesson-readyEvery learning item includes the evidence, worked example, practical work, and tutor guidance required by CIT's lesson-ready standard.
How can I explain this course to my child?
If you want to understand the important ideas behind how computers represent data instead of memorizing answers, AP Computer Science Principles connects programming with lists and procedures to exam-ready reasoning and a record of how you fixed mistakes.
Which interests suggest this course?
- how computers represent data
- programming with lists and procedures
- the social impact of computing
What does the student finish?A number-guessing game and a dice simulation, a Create task program with a help log, and big-idea error notes from a mock exam.
Is this a good fit?
A strong fit for students who want to create software, strengthen CS fundamentals, or prepare for a computing course or competition.
Current study of, or planned preparation for, AP Computer Science Principles.
A short diagnostic review sets the starting point.
Progress depends on regular practice and acting on feedback.
What will my child learn?
- Convert between binary and decimal and explain the overflow and rounding errors caused by a fixed number of bits.
- Filter, clean, and chart a public dataset, then interpret the patterns it reveals.
- Build algorithms with lists, selection, iteration, and procedures, and compare the efficiency of linear and binary search.
- Explain IP addressing, routing, and open protocols, and analyze security, privacy, and bias issues through real cases.
How does the course progress?
- 1Creative Development
Plan a program's purpose and features with a partner or team, then find and fix syntax, runtime, and logic errors.
- 2Data
Binary and bit representation, lossless and lossy compression, metadata, and the analysis of a public dataset.
- 3Algorithms and Programming
Build a game and a simulation with lists, loops, and procedures, then develop a Create task program within the current rules.
- 4Computer Systems and Networks
IP addresses and routing, open protocols such as TCP/IP, fault tolerance, and the run time of parallel computing.
- 5Impact of Computing
Beneficial and harmful effects of computing, data bias, security, and copyright, ending with a mock exam.
What counts as useful evidence?
A number-guessing game and a dice simulation, a Create task program with a help log, and big-idea error notes from a mock exam.
What should an admissions reader be able to see?
Alongside the score, the student builds the academic evidence an application can use: how they applied a core idea, why an answer failed, and how they revised it.
Useful evidence may include readable code, tests, version history, design choices, and a working product the student can explain.
The evidence an application reads is what the student understood, completed, and can explain.
Which sources were reviewed?
Catalog reviewed: 2026-09-30
Questions parents search before choosing this course
Is AP Computer Science Principles a good fit for high school students in Grades 9-12?
AP Computer Science Principles is a good fit for students in grades 9-12 who are interested in how computers represent data and programming with lists and procedures. CIT offers online or in-person lessons in Apgujeong, Gangnam, Seoul, in one-to-one or small-group formats. Students make a number-guessing game and a dice simulation, a Create task program with a help log, and big-idea error notes from a mock exam.
Can my child take AP Computer Science Principles online or in person, one-to-one or in a small group?
Yes. CIT offers online and in-person lessons at its Apgujeong academy in Gangnam, Seoul, with one-to-one and small-group options. A readiness consultation confirms the available format and starting point for the course.
Does my child need prior subject knowledge or coding experience for AP Computer Science Principles?
Current study of, or planned preparation for, AP Computer Science Principles. A short diagnostic review sets the starting point. Progress depends on regular practice and acting on feedback.
What will my child make or practice in AP Computer Science Principles?
The main evidence is a number-guessing game and a dice simulation, a Create task program with a help log, and big-idea error notes from a mock exam. Students also document decisions, tests, feedback, and limits in age-appropriate language.
How does AP Computer Science Principles exam preparation work?
CIT starts with a short diagnostic, then works through the units in order, from Creative Development to Impact of Computing, reviewing errors and improving exam-style responses. Practice is adapted to the student's current syllabus and readiness.
How are the schedule and tuition for AP Computer Science Principles determined?
CIT confirms the student's readiness, goal, location, class size, and current availability before recommending a course plan. The consultation and level check are free; tuition is explained before enrollment.
When should a student start?
The exam date is set by the school or the exam board, so the time left decides how many units the student can cover and how much practice fits. CIT checks the remaining weeks first, then proposes a starting unit.
At first my child did not want to go, because it was a weekend class. After the lesson they said it had been fun. Hearing that they ask about anything they do not understand and take part on their own put me at ease as a parent.
Where else parents check CIT
Choose the course after a readiness check
CIT can compare this course with nearby options by age, subject, and current preparation.