Searching and sorting algorithms
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Why this why now
As pupils’ understanding of algorithms develops, they are ready to explore how computers organise and process data efficiently. This unit introduces common searching and sorting algorithms, helping pupils see how these processes mirror everyday problem-solving. By analysing how algorithms differ in efficiency and suitability, pupils learn to think critically about the design and performance of computational solutions. Understanding these techniques at this stage strengthens logical reasoning and prepares pupils to make informed decisions when creating and optimising their own programs.
Prior knowledge requirements
- Pupils can code algorithms that use sequence, selection and iteration.
- Pupils can compare the features of algorithms that complete the same task.
- Pupils understand how collections of data can be organised and stored in programs.
Threads
Why this why now
As pupils’ understanding of algorithms develops, they are ready to explore how computers organise and process data efficiently. This unit introduces common searching and sorting algorithms, helping pupils see how these processes mirror everyday problem-solving. By analysing how algorithms differ in efficiency and suitability, pupils learn to think critically about the design and performance of computational solutions. Understanding these techniques at this stage strengthens logical reasoning and prepares pupils to make informed decisions when creating and optimising their own programs.
Prior knowledge requirements
- Pupils can code algorithms that use sequence, selection and iteration.
- Pupils can compare the features of algorithms that complete the same task.
- Pupils understand how collections of data can be organised and stored in programs.
Searching and sorting algorithms
In this unit pupils will have opportunities to analyse, interpret, modify, and implement a range of searching and sorting algorithms. They will have the opportunity to compare the features and efficiency of these algorithms and make suggestions about the most suitable algorithm for a given task.
7 lessons in unit
slide decks, worksheet PDFs, quizzes and lesson overviews. You can select individual lessons from the Searching and sorting algorithms unit and download the resources you need, or download the entire unit now. See every unit listed in our AQA secondary computer science curriculum and discover more of our teaching resources for AQA secondary computer science programmes.