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Praxis CS Exam Prep (2022)

Lessons

  1. Welcome to the CodeHS Praxis Prep Course!

    1. 1.1 Welcome to the CodeHS Praxis Course

    2. Description
    3. Objective

  2. Introduction to Programming in Java with Karel the Dog

    1. 2.1 Introduction to Programming With Karel

    2. Description
    3. Objective

    4. 2.2 More Basic Karel

    5. Description
    6. Objective

    7. 2.3 Java Programs and the Run Method

    8. Description
    9. Objective

    10. 2.4 Karel Can't Turn Right

    11. Description
    12. Objective

    13. 2.5 Methods in Karel

    14. Description
    15. Objective

    16. 2.6 Top Down Design and Decomposition in Karel

    17. Description
    18. Objective

    19. 2.7 Commenting Your Code

    20. Description
    21. Objective

    22. 2.8 Super Karel

    23. Description
    24. Objective

    25. 2.9 For Loops

    26. Description
    27. Objective

    28. 2.10 While Loops in Karel

    29. Description
    30. Objective

    31. 2.11 If Statements

    32. Description
    33. Objective

    34. 2.12 If/Else Statements

    35. Description
    36. Objective

    37. 2.13 Control Structures Example

    38. Description
    39. Objective

    40. 2.14 More Karel Examples and Testing

    41. Description
    42. Objective

    43. 2.15 How to Indent Your Code

    44. Description
    45. Objective

    46. 2.16 Unit 1 Quiz

    47. Description
    48. Objective

  3. Basic Java

    1. 3.1 Programming Languages

    2. Description
    3. Objective

    4. 3.2 Organizational Techniques

    5. Description
    6. Objective

    7. 3.3 Printing in Java

    8. Description
    9. Objective

    10. 3.4 Variables and Types

    11. Description
    12. Objective

    13. 3.5 User Input

    14. Description
    15. Objective

    16. 3.6 Arithmetic Expressions

    17. Description
    18. Objective

    19. 3.7 Casting

    20. Description
    21. Objective

    22. 3.8 Mid Unit Quiz

    23. Description
    24. Objective

    25. 3.9 Booleans

    26. Description
    27. Objective

    28. 3.10 Logical Operators

    29. Description
    30. Objective

    31. 3.11 Comparison Operators

    32. Description
    33. Objective

    34. 3.12 For Loops

    35. Description
    36. Objective

    37. 3.13 While Loops

    38. Description
    39. Objective

    40. 3.14 If Statements

    41. Description
    42. Objective

    43. 3.15 Nested Iterations

    44. Description
    45. Objective

    46. 3.16 Loop-and-a-Half

    47. Description
    48. Objective

    49. 3.17 Short-Circuit Evaluation

    50. Description
    51. Objective

    52. 3.18 DeMorgan's Laws

    53. Description
    54. Objective

    55. 3.19 String Types

    56. Description
    57. Objective

    58. 3.20 Basic Java Quiz

    59. Description
    60. Objective

  4. Methods

    1. 4.1 Java Methods

    2. Description
    3. Objective

    4. 4.2 Methods and Parameters

    5. Description
    6. Objective

    7. 4.3 Methods and Return Values

    8. Description
    9. Objective

    10. 4.4 Javadocs & More Methods

    11. Description
    12. Objective

    13. 4.5 String Methods

    14. Description
    15. Objective

    16. 4.6 Exceptions

    17. Description
    18. Objective

    19. 4.7 Methods Quiz

    20. Description
    21. Objective

  5. Classes and Object-Oriented Programming

    1. 5.1 Intro to Classes and Objects

    2. Description
    3. Objective

    4. 5.2 Classes vs. Objects

    5. Description
    6. Objective

    7. 5.3 Using a Class as a Client

    8. Description
    9. Objective

    10. 5.4 Writing Classes

    11. Description
    12. Objective

    13. 5.5 Writing Classes and Instance Methods

    14. Description
    15. Objective

    16. 5.6 Getter and Setter Methods

    17. Description
    18. Objective

    19. 5.7 Class Methods and Class Variables

    20. Description
    21. Objective

    22. 5.8 Method Overloading

    23. Description
    24. Objective

    25. 5.9 Local Variables and Scope

    26. Description
    27. Objective

    28. 5.10 Key Terms for Classes

    29. Description
    30. Objective

    31. 5.11 Objects vs. Primitives

    32. Description
    33. Objective

    34. 5.12 Inheritance

    35. Description
    36. Objective

    37. 5.13 Polymorphism

    38. Description
    39. Objective

    40. 5.14 Classes and OOP Quiz

    41. Description
    42. Objective

  6. Data Structures

    1. 6.1 What are Data Structures

    2. Description
    3. Objective

    4. 6.2 Introduction to Arrays

    5. Description
    6. Objective

    7. 6.3 Using Arrays

    8. Description
    9. Objective

    10. 6.4 Enhanced for Loops

    11. Description
    12. Objective

    13. 6.5 Wrapper Classes

    14. Description
    15. Objective

    16. 6.6 ArrayLists & Methods

    17. Description
    18. Objective

    19. 6.7 Arrays vs ArrayLists

    20. Description
    21. Objective

    22. 6.8 2D Arrays

    23. Description
    24. Objective

    25. 6.9 Traversing 2D Arrays

    26. Description
    27. Objective

    28. 6.10 HashMaps

    29. Description
    30. Objective

    31. 6.11 Data Structures Quiz

    32. Description
    33. Objective

  7. Algorithms and Recursion

    1. 7.1 What is an Algorithm?

    2. Description
    3. Objective

    4. 7.2 Linear Search

    5. Description
    6. Objective

    7. 7.3 Binary Search

    8. Description
    9. Objective

    10. 7.4 Selection Sort

    11. Description
    12. Objective

    13. 7.5 Insertion Sort

    14. Description
    15. Objective

    16. 7.6 Recursion

    17. Description
    18. Objective

    19. 7.7 Mergesort

    20. Description
    21. Objective

    22. 7.8 Informal Code Analysis

    23. Description
    24. Objective

    25. 7.9 Algorithms and Recursion Quiz

    26. Description
    27. Objective

  8. What is Computing?

    1. 8.1 History of Computers

    2. Description
    3. Objective

    4. 8.2 Computer Organization

    5. Description
    6. Objective

    7. 8.3 Software

    8. Description
    9. Objective

    10. 8.4 Hardware

    11. Description
    12. Objective

    13. 8.5 Future of Computing

    14. Description
    15. Objective

    16. 8.6 Ethical and Social Implications of Computing

    17. Description
    18. Objective

    19. 8.7 What is Computing? Quiz

    20. Description
    21. Objective

  9. Digital Information

    1. 9.1 What is Code?

    2. Description
    3. Objective

    4. 9.2 Intro to Digital Information

    5. Description
    6. Objective

    7. 9.3 Number Systems

    8. Description
    9. Objective

    10. 9.4 Encoding Text with Binary

    11. Description
    12. Objective

    13. 9.5 Pixel Images

    14. Description
    15. Objective

    16. 9.6 Hexadecimal

    17. Description
    18. Objective

    19. 9.7 Pixel Colors

    20. Description
    21. Objective

    22. 9.8 Data Compression

    23. Description
    24. Objective

    25. 9.9 Lossy Compression

    26. Description
    27. Objective

    28. 9.10 Cryptography

    29. Description
    30. Objective

    31. 9.11 Digital Information Quiz

    32. Description
    33. Objective

  10. The Internet

    1. 10.1 Welcome to the Internet

    2. Description
    3. Objective

    4. 10.2 Internet Hardware

    5. Description
    6. Objective

    7. 10.3 Internet Addresses

    8. Description
    9. Objective

    10. 10.4 DNS

    11. Description
    12. Objective

    13. 10.5 Routing

    14. Description
    15. Objective

    16. 10.6 Packets and Protocols

    17. Description
    18. Objective

    19. 10.7 Cybersecurity

    20. Description
    21. Objective

    22. 10.8 The Impact of the Internet

    23. Description
    24. Objective

    25. 10.9 Creative Credit & Copyright

    26. Description
    27. Objective

    28. 10.10 The Internet Quiz

    29. Description
    30. Objective

  11. Data

    1. 11.1 Getting Started with Data

    2. Description
    3. Objective

    4. 11.2 Visualizing and Interpreting Data

    5. Description
    6. Objective

    7. 11.3 Using Spreadsheets with Data

    8. Description
    9. Objective

    10. 11.4 Data Collection & Limitations

    11. Description
    12. Objective

    13. 11.5 Simulation

    14. Description
    15. Objective

    16. 11.6 Data Quiz

    17. Description
    18. Objective

  12. Intro to System Administration

    1. 12.1 Start Here

    2. Description
    3. Objective

    4. 12.2 Operating Systems Software

    5. Description
    6. Objective

    7. 12.3 Comparing Operating Systems

    8. Description
    9. Objective

    10. 12.4 Software and Applications

    11. Description
    12. Objective

    13. 12.5 Browser Configuration

    14. Description
    15. Objective

    16. 12.6 System Admin Quiz

    17. Description
    18. Objective

  13. IT Infrastructure

    1. 13.1 Start Here

    2. Description
    3. Objective

    4. 13.2 Internal Components

    5. Description
    6. Objective

    7. 13.3 Peripheral Devices

    8. Description
    9. Objective

    10. 13.4 Network Devices

    11. Description
    12. Objective

    13. 13.5 Storage Options

    14. Description
    15. Objective

    16. 13.6 Network Options

    17. Description
    18. Objective

    19. 13.7 Network Communication

    20. Description
    21. Objective

    22. 13.8 IT Infrastructure Quiz

    23. Description
    24. Objective

  14. Cybersecurity

    1. 14.1 What is Cyber?

    2. Description
    3. Objective

    4. 14.2 Impact of Cyber

    5. Description
    6. Objective

    7. 14.3 The CIA Triad

    8. Description
    9. Objective

    10. 14.4 Privacy and Security

    11. Description
    12. Objective

    13. 14.5 Hacking Ethics

    14. Description
    15. Objective

    16. 14.6 Databases

    17. Description
    18. Objective

    19. 14.7 Common Security Problems

    20. Description
    21. Objective

    22. 14.8 Environmental Controls

    23. Description
    24. Objective

    25. 14.9 Digital Certificates

    26. Description
    27. Objective

    28. 14.10 Data and Licenses

    29. Description
    30. Objective

    31. 14.11 Cybersecurity Quiz

    32. Description
    33. Objective

  15. Creative Development

    1. 15.1 Intro to Design Thinking

    2. Description
    3. Objective

    4. 15.2 Prototype

    5. Description
    6. Objective

    7. 15.3 Test

    8. Description
    9. Objective

  16. Collaboration in Computer Science

    1. 16.1 Collaboration in Computer Science

    2. Description
    3. Objective

    4. 16.2 Whiteboarding

    5. Description
    6. Objective

    7. 16.3 Pair-Programming

    8. Description
    9. Objective

    10. 16.4 Pop Coding

    11. Description
    12. Objective

    13. 16.5 Storytelling through Code

    14. Description
    15. Objective

  17. Debugging in Java

    1. 17.1 Basic Debugging in Java

    2. Description
    3. Objective

    4. 17.2 Debugging Tools

    5. Description
    6. Objective

    7. 17.3 Debugging Techniques

    8. Description
    9. Objective

    10. 17.4 Common Java Errors

    11. Description
    12. Objective

    13. 17.5 Common Compiler Errors

    14. Description
    15. Objective

    16. 17.6 Java Outside of CodeHS

    17. Description
    18. Objective

  18. Practice Tests

    1. 18.1 Practice Exam - All Topics

    2. Description
    3. Objective

    4. 18.2 Practice Exam - Java

    5. Description
    6. Objective

    7. 18.3 Review Quizzes - Part 1

    8. Description
    9. Objective

    10. 18.4 Review Quizzes - Part 2

    11. Description
    12. Objective

  19. Final Task

    1. 19.1 Congratulations!

    2. Description
    3. Objective