IB Computer Science 4.1 General Principles Lessons

This lesson delivers structured, step-by-step lessons that guide students through every part of the IB Computer Science (CS) syllabus for 4.1 General principles. These lessons simplify complex ideas like algorithm optimization, artificial intelligence, and computational complexity, while worked examples show how to approach IB-style questions.

Designed for both HL and SL learners, RevisionDojo lessons ensure students not only understand the theory but also know how to apply it in IB Paper exam situations.

With clear explanations, active learning checks, and a syllabus-first design, RevisionDojo makes revision less overwhelming and more effective.

4.1.1 Procedures and Sub-Procedures

4.1.2 Decision-Making Situations

4.1.3 Inputs and Outputs in a Solution

4.1.4 Pre-Planning in Problem Solutions

4.1.5 Pre- and Post-Conditions

4.1.6 Exceptions in Problem Solutions

4.1.7 Understanding Concurrency

4.1.8 Abstraction

1. System fundamentals2 subtopics

2. Computer organization1 subtopic

3. Networks1 subtopic

4. Computational thinking, problem-solving and programming3 subtopics

5. Abstract data structures (HL)1 subtopic

6. Resource management (HL)1 subtopic

7. Control (HL)1 subtopic

A. Databases4 subtopics

B. Modelling and simulation4 subtopics

C. Web science6 subtopics

D. Object-oriented programming (OOP)4 subtopics