for loop: for i from 1 to n

A loop that repeats its instructions a fixed number of times, counting the variable i from 1 up to n

Part of: VCE Pseudo Code — Module 13, VCE Software Development - U3O1 - Programming — Module 68, 7-8 Digital Technologies: Designing and tracing algorithms — Module 14, 9-10 Digital Technologies: Designing and validating algorithms — Module 17, VCE Applied Computing U1O2 Programming: Requirements and design tools — Module 18, QCE Digital Solutions Unit 1 — Algorithms and Programming Techniques — Module 24, QCE Digital Solutions Unit 1 — Programmed Solutions — Module 11, QCE Digital Solutions Unit 2 — Data-Driven Problems and Solution Requirements — Module 102, QCE Digital Solutions Unit 2 — Data and Programming Techniques — Module 135, QCE Digital Solutions Unit 3 — Real-World Problems and Solution Requirements — Module 67, QCE Digital Solutions Unit 4 — Complex Digital Data Exchange Problems and Solution Requirements — Module 127, QCE Digital Solutions Unit 4 — Prototype Digital Data Exchanges — Module 47, WA Computer Science ATAR Year 11 — Pseudocode and Algorithm Design — Module 27, WA Computer Science ATAR Year 11 — Control Structures and Data Types — Module 45, WA Computer Science ATAR Year 11 — Standard Algorithms — Module 3

Understanding for loop: for i from 1 to n in VCE Pseudocode

What it does: This description matches a FOR loop, which counts through a fixed range. TO specifies the ending value in a FOR loop's range. END FOR marks the end of the loop block in VCAA pseudocode. The closing keyword is written as two words: END FOR. DISPLAY is followed directly by the value or string, without parentheses. The loop variable can be named anything meaningful, such as count or j. This line begins a FOR loop, setting the loop variable's start and end values. END FOR marks where the loop's repeated instructions end.

Common mistakes: The keywords are in the wrong order — it should read FOR i FROM 1 TO 10. VCAA pseudocode uses DISPLAY to output a value, not PRINT.

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This module's key terms are also in a printable crossword (Modules 11–28) and word search (Modules 1–28).

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Learning

Duo

Does a FOR loop repeat a block of instructions a fixed number of times?

TrueFalse

Matches

FOR i FROM 1 TO 10 DISPLAY i ENDFOR

↓

The closing keyword should be written as END FOR, not ENDFOR

Applying

Meanings

Term

FOR i FROM 1 TO n

Meaning

A loop that repeats its instructions a fixed number of times, counting the variable i from 1 up to n

Practice

BEGIN

Testing

Gaps

i FROM 1 TO 5

Check Answer

Spots

1FOR i TO 1 FROM 10

2 DISPLAY i

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Quick Questions

1. Does a FOR loop repeat a block of instructions a fixed number of times?

A. False

B. True ✓

A FOR loop counts a variable from a starting value to an ending value, repeating its instructions for each count.

2. Which keyword sets the starting value of the loop variable?

A. FROM ✓

B. TO

FROM specifies the starting value that the loop variable counts from.

3. Which keyword sets the ending value of the loop variable?

A. TO ✓

B. FROM

TO specifies the ending value that the loop variable counts up to.

4. Should a FOR loop be closed with END FOR?

A. No

B. Yes ✓

END FOR marks the end of the loop block in VCAA pseudocode.

5. Is ENDFOR written as one word in VCAA pseudocode?

A. False ✓

B. True

The closing keyword is written as two words: END FOR.

Match the Pairs

FOR i FROM 1 TO 10 → Starts a loop counting i from 1 up to 10

END FOR → Closes a FOR loop block

A structure that repeats instructions a fixed number of times → FOR loop

The keyword that sets where the loop variable stops counting → TO

FOR i FROM 1 TO 10 DISPLAY i ENDFOR → The closing keyword should be written as END FOR, not ENDFOR

FOR j FROM 1 TO 5 j = j + 1 END FOR → Assignment in pseudocode should use ←, not =

Key Term

FOR i FROM 1 TO n

A loop that repeats its instructions a fixed number of times, counting the variable i from 1 up to n

Fill in the Blanks

1. FOR i FROM 1 TO 5

Hint: Type the keyword that starts the loop

2. FOR i FROM 1 TO 5

Hint: Type the keyword that sets the starting value

3. FOR i FROM 1 TO 5

Hint: Type the keyword that sets the ending value

4. FOR i FROM 1 TO 5 DISPLAY i END FOR

Hint: Type the keywords that close the loop

5. FOR count FROM 1 TO 10

Hint: Type the keyword that starts a loop with a different loop variable name

Spot the Error

Question 1

A FOR i TO 1 FROM 10

B DISPLAY i

C END FOR

Line A — The keywords are in the wrong order — it should read FOR i FROM 1 TO 10.

Question 2

A FOR i FROM 1 TO 10

B PRINT i

C END FOR

Line B — VCAA pseudocode uses DISPLAY to output a value, not PRINT.

Question 3

A FOR i FROM 1 TO 10

B DISPLAY i

C ENDFOR

Line C — The closing keyword should be written as END FOR, not ENDFOR.

Question 4

A FOR i FROM 1 TO n

B total <- total + i

C DISPLAY total

D END IF

Line D — A FOR loop must be closed with END FOR, not END IF.

Question 5

A FOR i FROM 1 TO 5

B DISPLAY i

C i <- i + 1

D END FOR

E NEXT i

Line E — VCAA pseudocode closes a FOR loop with END FOR; NEXT i is not valid syntax.

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