Teach string handling with a complete lesson that’s ready to go.

Strings are in almost every program students write, and string questions come up again and again in exams. This pack takes students from “what is a string?” to slicing, searching and transforming text in Python with confidence. It is aligned to Cambridge IGCSE/AS/A Level Computer Science 0478/9618 (Programming) and needs no prep.

WHAT’S INCLUDED

• PowerPoint lesson ([X] slides): worked examples, live-code demos and built-in check-for-understanding questions

• Student worksheet ([X] pages): scaffolded tasks from recall, to predicting outputs, to exam-style problems

• Hands-on coding activity: students write programs that process real text, such as validating input and formatting names

• MCQ quiz ([X] questions): quick-fire questions to check understanding and catch misconceptions

• Answers and full mark scheme: model answers with mark allocations, so marking takes minutes

WHAT STUDENTS WILL LEARN

What a string is and how Python stores text
Finding the length of a string with len()
Indexing: accessing individual characters, starting at 0
Slicing: extracting substrings with [start:end]
Concatenation with + and repeating strings with *
Changing case with .upper() and .lower()
Searching within strings
Converting between strings and numbers with str(), int() and float()
Character codes: converting between characters and ASCII values
Looping through a string one character at a time
How each Python technique maps to the string functions in Cambridge pseudocode
Common errors: index out of range, off-by-one mistakes, and joining a string to a number without converting it

WHY TEACHERS LOVE IT

Exam-focused: questions follow Cambridge command words and mark-scheme style
Targets real misconceptions: the mistakes students make every year
Differentiated: support tasks plus stretch questions for top-grade students
Non-specialist friendly: clear explanations and full answers included
Flexible: works as a single lesson, homework, cover or revision
Print-and-go: no editing needed (editable PPT included)

PERFECT FOR
Cambridge IGCSE 0478 teachers, heads of department, non-specialist and cover staff, and students learning independently. It suits ages 14-16 (Year 10-11 / Grade 9-10).

PART OF A FULL SERIES
This pack belongs to my Cambridge Python collection. Check my shop for matching packs on Introduction to Python, variables and data types, operators and expressions, selection, iteration, arrays, subroutines and file handling.

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