Pearson Edexcel GCSE (9–1) Computer Science Paper 2 Q6 | Linear Search Complete Solution

In this video, we solve Question 6 from Pearson Edexcel GCSE (9–1) Computer Science Paper 2 in a complete exam-oriented way.

This question focuses on linear search, two-dimensional lists, word validation, string handling, and efficient searching using alphabetical order.

The video includes:
• Complete Q6 program solution
• Linear search in Python
• Searching a two-dimensional list
• Accepting uppercase and lowercase input
• Converting input using upper()
• Checking valid two-letter words
• Stopping search at the correct point
• Suggesting the next valid word
• Step-by-step explanation

Important Concepts Covered:
• Two-dimensional list processing
• Linear search logic
• String comparison
• Alphabetical order searching
• Conditional statements
• Loop control
• Early stopping condition

Exam Strategy covered:
• Read all input, process, and output requirements carefully
• Use len() so the program works for any length of wordTable
• Stop the search when the word is found
• Stop when expected position is passed
• Display word and points clearly

Common mistakes:
• Not accepting lowercase input
• Searching only fixed number of records
• Not using len(wordTable)
• Missing the “next word” output
• Not stopping the search correctly

This video is very helpful for:
• Pearson Edexcel GCSE Computer Science students
• Students preparing for Paper 2 exams
• Learning linear search
• Practicing two-dimensional list questions

Watch the complete video to master linear search and improve your programming and computational thinking skills.

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