23L1
In this lesson, we introduce Producing Robust Programs for OCR GCSE Computer Science (J277 – Paper 2).
Students learn what it means for a program to be robust, why programs fail in real-world use, and how defensive design helps prevent crashes and incorrect behaviour. The lesson focuses on how robustness is assessed in OCR Paper 2, using authentic exam-style thinking rather than abstract definitions.
This video is suitable for:
-GCSE OCR J277 students
-Teachers delivering Paper 2 (Computational Thinking, Algorithms and Programming)
-Revision and lesson recap
Topics covered:
-What a robust program is
-Why programs crash with unexpected input
-Defensive design and assumptions about users
-How robustness appears in OCR exam questions
This lesson aligns directly with OCR J277 Section 2.3.
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