Lesson 7.8: Project Checkpoint & Debugging

Today’s Goals

• Review project progress so far
• Strengthen debugging skills
• Make improvements based on feedback

Warm-Up Question

• What is the most confusing bug you’ve faced in your project so far?

Debugging Review

• Common problems:
  • Infinite loops
  • Input errors (case sensitivity, wrong types)
  • Functions not being called
  • Variables not defined
• Strategies:
  • Use print() to trace values
  • Test one function at a time
  • Read error messages carefully

Example Debugging

def greet(name):
    print("Hello", Name)  #  typo: Name instead of name

greet("Alice")

Error: NameError: name 'Name' is not defined

Fix:

def greet(name):
    print("Hello", name)  #  corrected variable

greet("Alice")

Class Activity

• Run your project
• Identify at least one bug or improvement needed
• Fix it and test again

Teacher Checkpoints

• Show your project progress by halfway through class
• Teacher/peer gives one suggestion for improvement

Student Challenge

• Write down the 2 hardest bugs you’ve fixed so far and how you solved them

Wrap-Up

• Debugging is where your program really takes shape
• Next time: Peer review & feedback session