2.1.3 Thinking ahead

• Thinking ahead involves techniques like tracing the execution of an algorithm step-by-step and testing
• Why is thinking ahead crucial in problem-solving?

  Optimizes solutions
• What is tracing as a strategy for thinking ahead?

  Systematic code execution
• What anticipated issue is addressed in a web form by thinking ahead?

  Invalid user data
• When AI in a game gets stuck in a loop, programmers can use pathfinding algorithms and obstacle avoidance techniques
• What is the focus of computational thinking's "thinking ahead" element?

  Anticipating and planning
• Order the steps programmers take to address issues using "thinking ahead":

  1️⃣ Anticipate potential issues

  2️⃣ Trace the execution of an algorithm

  3️⃣ Test the program with different inputs

  4️⃣ Identify and address problems
• Match the thinking ahead strategy with its benefit:

  Tracing ↔️ Clarifies logic flow

  Testing ↔️ Ensures correct outputs

  Scenario Planning ↔️ Prepares for unexpected events
• When a web form user enters an invalid date, programmers can use input type attributes and JavaScript validation
• What are three key areas where thinking ahead improves software development?

  Defects, performance, maintainability
• Thinking ahead helps ensure the robustness and reliability of code.


  True
• Thinking ahead allows programmers to proactively address potential problems
• Testing involves running the program with a variety of inputs
• To improve sorting algorithm performance, programmers can implement an optimized algorithm like Merge Sort
• "Thinking ahead" in computer programs involves anticipating and planning for potential issues.

  True
• "Decomposition" in computational thinking involves breaking down a complex problem into smaller parts
• What is the benefit of identifying recurring structures in data using pattern recognition?

  Speeds up problem-solving
• Thinking ahead strategies can help reduce errors and bugs in code.


  True
• Offline data storage in mobile apps allows continued app use without an internet connection.


  True
• Thinking ahead differs from decomposition, pattern recognition, and abstraction by focusing on proactively addressing potential challenges
• What is thinking ahead in computational thinking focused on?

  Anticipating and planning
• Match the element of computational thinking with its description:

  Decomposition ↔️ Breaks down problems

  Pattern recognition ↔️ Identifies recurring structures

  Abstraction ↔️ Focuses on essential features

  Thinking ahead ↔️ Plans for potential issues
• Order the strategies for thinking ahead:

  1️⃣ Tracing

  2️⃣ Testing

  3️⃣ Scenario planning
• Scenario planning prepares for unexpected events and improves code flexibility.


  True
• What technique can programmers use when a mobile app user loses network connection?

  Offline data storage
• Match the program type with an example of thinking ahead:

  Web Form ↔️ Input validation using JavaScript

  Sorting Algorithm ↔️ Implementing Merge Sort

  Mobile App ↔️ Using offline data storage

  Game AI ↔️ Applying pathfinding algorithms
• "Abstraction" in computational thinking involves focusing on essential details while ignoring irrelevant ones.


  True
• Thinking ahead allows programmers to anticipate and plan for potential issues to ensure code robustness
• What is the ultimate goal of using thinking ahead strategies in programming?

  Create reliable solutions
• Match the technique of thinking ahead with an example:

  Tracing ↔️ Following sorting algorithm steps

  Testing ↔️ Running search algorithm with edge cases

  Scenario Planning ↔️ Designing route-finding algorithm