Big O Notation & algorithm performance | Cambridge IGCSE, AS & A-Level | Computer Science

Big O Notation & algorithm performance |Complete Lesson Pack for Cambridge IGCSE, AS & A-Level 9618 Computer Science Lesson Pack | PPTs, Worksheets, Activities, MCQ Quiz & Marking Scheme

Big O Notation Premium Bundle

01Lecture PPT

12 dark-themed slides: title, learning objectives, definition, complexity classes, 3 worked examples (Linear Search, Bubble Sort, Binary Search), growth curve chart, space complexity, sorting comparison table, practice questions, summary

02Worksheet

10 structured questions across 3 sections (Knowledge, Algorithm Analysis, Extended Response) — 40 marks total, with student info box and answer lines

03Class Activity

3 activities: The Algorithm Race (physical simulation), Complexity Card Sort (cut-out classification), Real-World Debate (linear vs binary search for 50M users) — with roles, recording tables, and debrief questions

04MCQ Quiz

15 questions in 3 levelled sections — Q1–5 IGCSE, Q6–10 AS Level, Q11–15 A Level — with circle/tick answer format

Answers & Marking Scheme (Teacher Copy)

Full MCQ answer key table + detailed mark-point scheme for every worksheet question with accepted phrasing notes + grade boundary table