IB Computer Science Standard Level (2021) - Explore | CodeHS

Introduction to Programming in Java with Karel the Dog

1.1 Introduction to Programming With Karel

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1.2 More Basic Karel

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1.3 Java Programs and the Run Method

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1.4 Karel Can't Turn Right

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1.5 Methods in Karel

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1.6 Top Down Design and Decomposition in Karel

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1.7 Commenting Your Code

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1.8 Abstraction

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1.9 Super Karel

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1.10 For Loops

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1.11 While Loops in Karel

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1.12 If Statements

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1.13 If/Else Statements

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1.14 Control Structures Example

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1.15 More Karel Examples and Testing

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1.16 How to Indent Your Code

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1.17 What is Code

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1.18 Uses of Programs

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1.19 Karel Challenges

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1.20 Introduction to Programming in Java Quiz

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Design Thinking

2.1 Intro to Design Thinking

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2.2 Empathy

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2.3 Define

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2.4 Ideate

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2.5 Prototype

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2.6 Test

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Project: Put it in Writing!

3.1 Context for Change

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3.2 Planning for System Implementation

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3.3 Preparing Users

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3.4 Maintaining the System

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Digital Information

4.1 Intro to Digital Information

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4.2 Number Systems

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4.3 Encoding Text with Binary

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4.4 Hexadecimal

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4.5 Pixel Images

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4.6 Pixel Colors!

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4.7 Data Compression

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4.8 Lossy Compression

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4.9 Digital Information Quiz

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Networking

5.1 Welcome to the Internet

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5.2 DNS

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5.3 Packets and Protocols

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5.4 Protocols and Standards

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5.5 Private Networks

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5.6 Cybersecurity

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5.7 Network Administrator

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5.8 The Impact of the Internet

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5.9 The Internet Quiz

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5.10 Networking Quiz

Computer Organization

6.1 Internal Components

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6.2 Peripheral Devices

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6.3 Network Devices

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6.4 Storage Options

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6.5 Network Options

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6.6 Operating Systems

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6.7 Software and Applications

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6.8 Browser Configuration

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6.9 Sequential, Parallel & Distributed Computing

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6.10 Computer Organization Quiz

Primitive Types

7.1 Why Programming? Why Java?

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7.2 Variables and Data Types

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7.3 Expressions and Assignment Statements

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7.4 Compound Assignment Operators

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7.5 User Input

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7.6 Casting and Ranges of Variables

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7.7 Primitive Types Quiz

Using Objects

8.1 Objects: Instances of Classes

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8.2 Creating and Storing Objects (Instantiation)

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8.3 Overloading

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8.4 Calling a Void Method

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8.5 Calling a Void Method with Parameters

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8.6 Calling a Non-void Method

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8.7 String Objects

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8.8 String Methods

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8.9 Wrapper Classes: Integers and Doubles

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8.10 Using the Math Class

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8.11 Using Objects Quiz

Boolean Expressions and if Statements

9.1 Boolean Expressions and if Statements

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9.2 if Statements and Control Flow

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9.3 if-else Statements

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9.4 else if Statements

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9.5 Compound Boolean Expressions

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9.6 Equivalent Boolean Expressions

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9.7 Comparing Objects

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9.8 Boolean Expressions and if Statements Quiz

Iteration

10.1 Iteration

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10.2 For Loops

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10.3 Developing Algorithms Using Strings

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10.4 Nested Iteration

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10.5 Informal Code Analysis

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10.6 Iteration Quiz

Writing Classes

11.1 Writing Classes

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11.2 Constructors

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11.3 Documentation with Comments

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11.4 Accessor Methods

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11.5 Mutator Methods

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11.6 Writing Methods

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11.7 Static Variables and Methods

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11.8 Scope and Access

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11.9 this Keyword

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11.10 Ethical and Social Implications of Computing

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11.11 Writing Classes Quiz

Classes and Object-Oriented Programming

12.1 Introduction to Classes and Objects

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12.2 Classes vs. Objects

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12.3 Using a Class as a Client

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12.4 Writing Classes

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12.5 Writing Classes and Instance Methods

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12.6 Getter and Setter Methods

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12.7 Class Methods and Class Variables

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12.8 Wrapper Classes

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12.9 Method Overloading

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12.10 Local Variables and Scope

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12.11 Key Terms for Classes

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12.12 Objects vs Primitives

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12.13 Inheritance

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12.14 Class Design and Abstract Classes

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12.15 Polymorphism

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12.16 Object Superclass

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12.17 Interfaces

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12.18 Classes and Object-Oriented Programming Quiz

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Array

13.1 Array

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13.2 Traversing Arrays

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13.3 Enhanced for Loop for Arrays

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13.4 Developing Algorithms Using Arrays

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13.5 Array Quiz

ArrayList

14.1 ArrayList

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14.2 ArrayList Methods

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14.3 Traversing ArrayLists

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14.4 Developing Algorithms using ArrayLists

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14.5 Searching

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14.6 Sorting

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14.7 Ethical Issues Around Data Collection

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14.8 ArrayList Quiz

2D Array

15.1 2D Arrays

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15.2 Traversing 2D Arrays

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15.3 2D Array Quiz

Inheritance

16.1 Inheritance

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16.2 Writing Constructors for Subclasses

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16.3 Overriding Methods

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16.4 super Keyword

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16.5 Creating References Using Inheritance

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16.6 Polymorphism

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16.7 Object Superclass

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16.8 Inheritance Quiz

Recursion

17.1 Recursion

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17.2 Recursive Searching

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17.3 Recursive Sorting

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17.4 Recursion Quiz

Exam Practice

18.1 IB Assessment Prep Overview

18.2 Topic 1: System Fundamentals

18.3 Topic 2: Computer Organization

18.4 Topic 3: Networks

18.5 Topic 4: Computational Thinking, Problem-solving

18.6 Topic 5: Object Oriented Programming

18.7 Practice Exam