IGCSE AQA

​What are we getting better at (W.A.G.B.A) :

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What do you find most difficult about long programming questions right now?

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What is one skill you want to improve today? (e.g. reading code, designing a subroutine, understanding the board)

What Is Section C Asking You To Do?

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Name one thing Section C usually asks you to do.

​Open and Run the program first before clicking next (there will be questions).

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After FD, did the pointer move? Where did it go?

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After RT, what changed: the row/column or the direction arrow?

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After FD 2, how is this different from FD with no number?

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After GO, what did the program show you?

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In your own words, what does board[row][column] represent?

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Which variables tell you where the pointer is?

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Which variable tells you which way the pointer is facing?

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What is a subroutine, in your own words?

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What is a parameter?

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Why is using subroutines useful in a big program?

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In result = add(3, 5), what are the values?

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In add(a, b), which parts are the parameters?

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Find ProcessForward in the Pointer program. What is the name of its parameter?

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What value does CheckForward return if the next square is empty?

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What value does it return if the next square has an obstacle?

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Why do you think the program needs to check first before moving the pointer?

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How does MoveForward change pointerRow and pointerColumn when direction is UP?

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How does it change them when direction is RIGHT?

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Write 1–2 sentences: How does MoveForward “know” whether to change the row or the column?

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Why do you think ProcessForward has a loop that uses count?

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What happens inside the loop each time it runs?

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What does ProcessForward(3) do differently from ProcessForward(1)?

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What does the rotation parameter represent? (hint: -1 or +1)

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How does the program decide which direction comes “next” after RIGHT?

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Why is the list [UP, RIGHT, DOWN, LEFT] useful here?

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When the user types FD 3, how does ProcessInput get the number 3?

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Which subroutine does ProcessInput call to actually move the pointer forward?

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Write a sentence: What is the job of ProcessInput in this program?

Fill in the Blank

Upload your a screenshot of your subroutine. Type "uploaded" when done

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Where in ProcessInput did you insert the new TA code (top, middle, or bottom)?

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Did the program behave as you predicted?

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If not, which part was different? (movement, direction, or both?)

Poll

When you read a new subroutine, which step helps you most:

• Tracing variables

• Looking for loops

• Looking for if / else

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What part of today’s task felt the easiest? Why?

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What part felt the hardest? Why?

Poll

How confident do you now feel (1–5) about reading and modifying a skeleton program?

• 1

• 2

• 3

• 4

• 5