Can you put these children’s TV shows in date order - earliest to latest?

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Presentation transcript:

Can you put these children’s TV shows in date order - earliest to latest?

Sorting Algorithms

Algorithm Precise method for solving a problem

Sorting Algorithm Order a listlist

ABC Sorting Algorithms - alphabetical

Sorting Algorithms - Alphabetical

123 Sorting Algorithms - numerical

Know sorting algorithms mainly sort alphabetically or numerically Sorting Algorithms - Objectives

Sorting Algorithms

Selection Sort

●Data divided into sorted & unsorted portions ●Smallest values from unsorted portion are selected & put into sorted portion.

Bubble Sort

●Compare adjacent elements & swop if out of order ●Largest number ‘bubbles up’ to end of list

Bubble Sort ●Compare adjacent elements & swop if out of order ●Largest number ‘bubbles up’ to end of list

Quick Sort

●Pick random element ‘pivot’ ●Put to one side ●Compare other elements to ‘pivot’ ●Put smaller to left ●Larger to right ●Repeat with other groups

Quick Sort ●Divide & conquer ●Larger lists

Sorting Algorithms Compare & contrast the 3 sorting algorithms

Understand 3 different types of sorting algorithms Sorting Algorithms - Objectives

Comparing Algorithms - extension ●‘Big O’ notation ●Best & Worse Case ●Computational thinking ●ProgramsPrograms ●CSUnpluggedCSUnplugged

Other Sorting Algorithms ●Merge Sort ●Insertion Sort ●Cocktail Sort ●Gnome Sort

Apply your knowledge & understanding of sorting algorithms to your teaching Sorting Algorithms: Objectives

KS2:use logical reasoning to explain how some simple algorithms work and to detect and correct errors in algorithms and programs KS3: understand several key algorithms that reflect computational thinking [for example, ones for sorting and searching]; use logical reasoning to compare the utility of alternative algorithms for the same problem National Curriculum

●Know sorting algorithms mainly sort alphabetically or numerically ●Understand 3 different types of sorting algorithms ●Apply your knowledge & understanding of sorting algorithms to your teaching Sorting Algorithms: Objectives

What have you learnt today that you can use in your classroom tomorrow? tomorrow? Sorting Algorithms

Sorting Algorithms: Objectives