IGCSE Computer Science 0478 — 7c Pseudocode and Flowcharts
Writing and reading algorithms before you write any code.
Modules (120)
1
Pseudocode, flowcharts and program code
2
Keywords in upper case
3
Identifiers in Pascal case (7c)
4
Indenting statements by four spaces
5
Comments with // (7c)
6
Basic data types in pseudocode
7
Writing literals in pseudocode
8
DECLARE a variable (7c)
9
CONSTANT
10
Assignment with ← (7c)
11
Assignment ← versus comparison =
12
Arithmetic operators + - * / ^ (7c)
13
DIV and MOD
14
Brackets in pseudocode expressions
15
Relational operators
16
Writing precise conditions (7c)
17
Logical operators AND, OR and NOT
18
Writing a range condition precisely
19
INPUT
20
OUTPUT
21
Sequence
22
IF ... THEN ... ENDIF (7c)
23
IF ... THEN ... ELSE ... ENDIF (7c)
24
Indenting THEN and ELSE by two spaces
25
Nested IF statements (7c)
26
CASE OF ... ENDCASE (7c)
27
OTHERWISE in a CASE statement (7c)
28
Choosing between CASE and IF
29
FOR ... TO ... NEXT
30
FOR loop with STEP (7c)
31
How many times a FOR loop runs
32
WHILE ... DO ... ENDWHILE
33
REPEAT ... UNTIL
34
WHILE versus REPEAT
35
Choosing the right loop
36
Nested loops in pseudocode
37
Selection inside a loop (7c)
38
Declaring a 1D array
39
Using an array element
40
Looping through an array with FOR (7c)
41
Declaring and using a 2D array
42
The standard flowchart symbols
43
Terminator symbol
44
Flow line
45
Process symbol
46
Input and output shapes in a flowchart
47
Drawing a decision in a flowchart
48
Subroutine symbol
49
Writing statements inside flowchart symbols
50
Drawing a sequence in a flowchart
51
Flowchart for IF ... THEN ... ELSE
52
Drawing several alternatives in a flowchart
53
Drawing a nested decision in a flowchart
54
Flowchart for a WHILE loop
55
Flowchart for a REPEAT loop
56
Flowchart for a FOR loop
57
Drawing a loop in a flowchart
58
Drawing a decision inside a loop in a flowchart
59
Building a flowchart from a problem
60
Converting pseudocode to a flowchart
61
Converting a flowchart to pseudocode
62
Pseudocode assignment, INPUT and OUTPUT in Python
63
Variables
64
input() function
65
print() function
66
Type Conversion
67
Basic Arithmetic
68
More Arithmetic
69
Comparison Operators
70
Boolean Logic
71
If Statements
72
elif Statements
73
else Statements
74
CASE as if/elif/else in Python
75
For Loops
76
range()
77
FOR ... TO as range() in Python
78
While Loops
79
REPEAT ... UNTIL as while True with break
80
Lists – Creation
81
Lists – Indexing
82
Pseudocode array to Python list
83
Turning a flowchart into Python
84
Counters and totals in a Python loop
85
The purpose of an algorithm
86
Inputs, processes and outputs of an algorithm
87
Trace Tables
88
Completing a trace table for pseudocode
89
Tracing a loop in a trace table
90
Working out the purpose from a trace
91
Describing the processes in an algorithm
92
Describing the processes of a loop
93
Explaining a flowchart
94
Finding errors in an algorithm
95
Error: = used instead of ←
96
Error: missing ENDIF, NEXT, ENDWHILE or UNTIL
97
Error: wrong relational operator
98
Error: wrong logical operator
99
Error: variable not set to zero first
100
Error: wrong loop bounds
101
Error: loop that never ends
102
Error: wrong loop type
103
Error: wrong data type or undeclared variable
104
Errors in a flowchart
105
Suggesting a correction
106
Logic errors in Python
107
Totalling in pseudocode
108
Counting in pseudocode
109
Finding the maximum and minimum in pseudocode
110
Calculating an average in pseudocode
111
Linear search in pseudocode
112
Linear search in Python
113
Bubble sort in pseudocode
114
Tracing a standard algorithm
115
Reading a problem to plan an algorithm
116
Writing an algorithm in pseudocode from a problem
117
Writing an algorithm as a flowchart from a problem
118
Amending an algorithm
119
Validating input with a REPEAT loop
120
Writing exam answers about algorithms
Smaller journeys, one per content description
The same modules, split up so a class can take just the content description it's working on.
10
IGCSE Computer Science 0478 7c: Pseudocode conventions, variables and data types
Students learn the Cambridge pseudocode format, including upper-case keywords, Pascal-case identifiers, indentation and comments, and how to declare variables and constants, assign values and choose data types.
11
IGCSE Computer Science 0478 7c: Operators, conditions, input and output
Students learn to use arithmetic, relational and logical operators, write precise conditions such as x > y, and use INPUT, OUTPUT and sequence in pseudocode.
7
IGCSE Computer Science 0478 7c: Selection in pseudocode
Students learn to write IF and CASE statements in Cambridge pseudocode, including nested selection and the indentation rules.
13
IGCSE Computer Science 0478 7c: Loops and arrays in pseudocode
Students learn to write FOR, WHILE and REPEAT loops, nest loops and selection, and declare and loop through one- and two-dimensional arrays.
8
IGCSE Computer Science 0478 7c: Flowchart symbols
Students learn the six standard flowchart symbols and how to write precise statements inside them.
12
IGCSE Computer Science 0478 7c: Building and converting flowcharts
Students learn to draw sequence, selection and loops as flowcharts, build a flowchart from a problem, and convert between flowcharts and pseudocode.
9
IGCSE Computer Science 0478 7c: Python basics for algorithms
Students learn to turn pseudocode assignment, input, output, arithmetic, comparison and logic into Python program code.
14
IGCSE Computer Science 0478 7c: Python selection, loops and lists
Students learn to turn pseudocode selection, loops, counting, totalling and arrays, and flowcharts, into Python program code.
9
IGCSE Computer Science 0478 7c: Explaining algorithms and trace tables
Students learn to state the purpose of an algorithm, describe its processes, and complete trace tables to dry-run pseudocode and flowcharts.
13
IGCSE Computer Science 0478 7c: Finding and correcting errors
Students learn to identify common errors in pseudocode, flowcharts and Python, and to suggest precise corrections.
8
IGCSE Computer Science 0478 7c: Standard algorithms
Students learn to write and trace the standard algorithms of totalling, counting, maximum, minimum, average, linear search and bubble sort.
6
IGCSE Computer Science 0478 7c: Writing and amending algorithms
Students learn to plan, write and amend algorithms for a given problem in pseudocode and flowcharts, and to answer exam questions on algorithms with precision.
Printables for this journey
Every module above has its own free printable worksheet with an answer key. These crosswords and word searches cover the same terms:
✎
Python Crossword: Getting Started (Modules 1–10)
10 clues · print() function, input() function, Comments, Variables and more
✎
Python Crossword: Control Flow (Modules 11–20)
10 clues · Type Conversion, Comparison Operators, Boolean Logic, If Statements and more
✎
Python Crossword: Functions (Modules 21–30)
10 clues · range(), Error Handling – try/except basics, break and continue, Functions – Defining and more
✎
Python Crossword: Data Structures (Modules 31–40)
10 clues · String Methods (upper, lower, replace…), String Formatting (.format()), Lists – Creation, Lists – Indexing and more
🔎
Python Word Search: Getting Started and Control Flow (Modules 1–20)
22 words to find · print() function, input() function, Comments, Variables and more
🔎
Python Word Search: Functions and Data Structures (Modules 21–40)
20 words to find · range(), Error Handling – try/except basics, break and continue, Functions – Defining and more
✎
VCE Pseudocode Crossword: if-then-else block to Reading and tracing complex pseudocode (Modules 11–28)
10 clues · if-then-else block, else if: chained selection, for loop: for i from 1 to n, Nested for loops and more
🔎
VCE Pseudocode Word Search: What is Pseudocode to Reading and tracing complex pseudocode (Modules 1–28)
20 words to find · What is Pseudocode, Pseudocode Writing Conventions, Variable Assignment: x <- value, input keyword and more
✎
Years 5–6 Creating Digital Solutions Crossword: Designing algorithms with branching and iteration and Designing user interfaces (Modules 21–30)
10 clues · Branching inside a loop, Algorithms that use sequence, branching and iteration together, Drawing a sequence in a flowchart, Drawing a decision in a flowchart and more
🔎
Years 5–6 Creating Digital Solutions Word Search: Designing algorithms with branching and iteration and Designing user interfaces (Modules 21–40)
20 words to find · Branching inside a loop, Algorithms that use sequence, branching and iteration together, Drawing a sequence in a flowchart, Drawing a decision in a flowchart and more
✎
VCE Software Development U3O1 Crossword: Requirements and design tools to Naming conventions and internal documentation (Modules 10–47)
10 clues · Data dictionary, Writing a data dictionary entry, Designing classes with a class diagram, Object descriptions and more
✎
VCE Software Development U3O1 Crossword: Object-oriented programming and Searching and sorting algorithms (Modules 142–155)
10 clues · OOP principle: inheritance, Calling the parent __init__ with super(), Linear search in Python, Binary search in Python and more
✎
VCE Software Development U3O1 Crossword: Searching and sorting algorithms and Errors and debugging (Modules 156–166)
10 clues · Comparing searching and sorting algorithms, Applying an algorithm to a task, Logic errors in Python, Runtime errors in Python and more
🔎
VCE Software Development U3O1 Word Search: Requirements and design tools to Pseudocode (Modules 10–71)
21 words to find · Data dictionary, Writing a data dictionary entry, Designing classes with a class diagram, Object descriptions and more
🔎
VCE Software Development U3O1 Word Search: Object-oriented programming to Errors and debugging (Modules 142–166)
20 words to find · OOP principle: inheritance, Calling the parent __init__ with super(), Linear search in Python, Binary search in Python and more
✎
Years 7–8 Creating Digital Solutions Crossword: Defining and decomposing problems and Designing and tracing algorithms (Modules 3–47)
10 clues · Interviewing a user, Decomposing a problem into sub-problems, Decomposition diagrams, Non-functional requirements and more
✎
Years 7–8 Creating Digital Solutions Crossword: Designing and tracing algorithms to Evaluating digital solutions (Modules 50–125)
10 clues · Choosing test data for an algorithm, Storyboarding a user's path through a system, Comparing alternative designs with a criteria table, Running a Python program and more
🔎
Years 7–8 Creating Digital Solutions Word Search: Defining and decomposing problems to Evaluating digital solutions (Modules 3–125)
21 words to find · Interviewing a user, Decomposing a problem into sub-problems, Decomposition diagrams, Non-functional requirements and more
✎
Crossword: 7b Decomposition and Sub-systems and 7c Pseudocode and Flowcharts (Modules 136–145)
10 clues · Writing a main program that calls one procedure per sub-problem, Turning a structure diagram into pseudocode, Constructing a full solution: decompose, draw and write, Writing exam answers about decomposition and abstraction and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 146–155)
10 clues · Writing literals in pseudocode, DECLARE a variable (7c), CONSTANT, Assignment with ← (7c) and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 156–165)
10 clues · Logical operators AND, OR and NOT, Writing a range condition precisely, INPUT, OUTPUT and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 166–175)
10 clues · OTHERWISE in a CASE statement (7c), Choosing between CASE and IF, FOR ... TO ... NEXT, FOR loop with STEP (7c) and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 176–187)
10 clues · Selection inside a loop (7c), Declaring a 1D array, Using an array element, Looping through an array with FOR (7c) and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 188–213)
10 clues · Writing statements inside flowchart symbols, Flowchart for IF ... THEN ... ELSE, Flowchart for a WHILE loop, Flowchart for a REPEAT loop and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 216–231)
10 clues · FOR ... TO as range() in Python, REPEAT ... UNTIL as while True with break, Pseudocode array to Python list, The purpose of an algorithm and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 232–241)
10 clues · Explaining a flowchart, Finding errors in an algorithm, Error: = used instead of ←, Error: missing ENDIF, NEXT, ENDWHILE or UNTIL and more
✎
Crossword: 7c Pseudocode and Flowcharts (Modules 242–253)
10 clues · Error: wrong data type or undeclared variable, Errors in a flowchart, Suggesting a correction, Totalling in pseudocode and more
✎
Crossword: 7c Pseudocode and Flowcharts and 7d Standard Methods of Solution (Modules 254–264)
10 clues · Reading a problem to plan an algorithm, Writing an algorithm in pseudocode from a problem, Writing an algorithm as a flowchart from a problem, Amending an algorithm and more
🔎
Word Search: 7b Decomposition and Sub-systems and 7c Pseudocode and Flowcharts (Modules 123–145)
20 words to find · The subroutine symbol in a flowchart, Turning a structure diagram into a main flowchart and sub-flowcharts, Cambridge pseudocode: keywords in capitals and indentation, Pseudocode assignment: ← and more
🔎
Word Search: 7c Pseudocode and Flowcharts (Modules 146–165)
20 words to find · Writing literals in pseudocode, DECLARE a variable (7c), CONSTANT, Assignment with ← (7c) and more
🔎
Word Search: 7c Pseudocode and Flowcharts (Modules 166–187)
20 words to find · OTHERWISE in a CASE statement (7c), Choosing between CASE and IF, FOR ... TO ... NEXT, FOR loop with STEP (7c) and more
🔎
Word Search: 7c Pseudocode and Flowcharts (Modules 188–231)
21 words to find · Writing statements inside flowchart symbols, Flowchart for IF ... THEN ... ELSE, Flowchart for a WHILE loop, Flowchart for a REPEAT loop and more
🔎
Word Search: 7c Pseudocode and Flowcharts (Modules 232–253)
21 words to find · Explaining a flowchart, Finding errors in an algorithm, Error: = used instead of ←, Error: missing ENDIF, NEXT, ENDWHILE or UNTIL and more
🔎
Word Search: 7c Pseudocode and Flowcharts and 7d Standard Methods of Solution (Modules 254–274)
21 words to find · Reading a problem to plan an algorithm, Writing an algorithm in pseudocode from a problem, Writing an algorithm as a flowchart from a problem, Amending an algorithm and more
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