Programming Basics
What do we call mistakes in code that stop the app from working?
Bugs
Who is responsible for typing the code?
The Driver
Which shape represents a YES/NO decision?
Rhombus (diamond)
A list that stays the same and never changes is called a ______ list.
Static list
Which sensor triggers an event when the phone is shaken?
Accelerometer
What structure repeats actions until a condition is met?
Loop
Who checks for errors and gives direction?
The Navigator
Which shape typically begins and ends a flowchart?
Oval
Which type of list changes when the app runs?
Dynamic list
What block do we use for user-triggered actions (like button clicks)?
Event handler
What App Inventor item temporarily stores values for later use?
Variable
Why are two perspectives (Driver + Navigator) better for debugging?
More eyes catch more mistakes and improve accuracy.
Give an example of a Yes/No real-world decision.
“Is it raining?” / “Should I bring a jacket?” / “Is my phone charged?”
Give one example of a Static List in a real app.
Months of the year, Zodiac signs, 50 states
What does disabling a block do?
Prevents code from running without deleting it.
Why do we use comments in code?
To explain the purpose of code / help future debugging
Give one example of miscommunication that could happen during pair programming.
Navigator gives unclear directions OR driver codes ahead without listening.
Come up with a mini algorithm for a morning routine using 3 steps.
Wake up → Get dressed → Eat breakfast
Give one example of a Dynamic List in a real app.
User’s notes list, shopping list, reminders list
Give an example of an event handler block.
Control, Logic, Variable, Math
Explain one way to reduce redundancy in an event handler using a computational concept.
Use procedures or loops to avoid repeating identical blocks.
Explain how pair programming mirrors real-world computer science teamwork.
Teams collaborate, assign roles, debug together, and combine strengths—just like in professional development.
Explain how flowcharts help programmers before building an app.
They clarify logic, prevent mistakes, and map the sequence of decisions and actions.
Explain how a list + random block could be used to make a “Random Joke App.”
Store jokes in a list → use random index → display selected joke on screen.
Explain why procedures are important when building multi-screen apps.
They reduce repetition, organize complex actions, and keep code efficient and consistent.