CS Unplugged: Divide and Conquer

Use Santa’s Dirty Socks book or video to explore the problem of finding a hidden item in one of 1024 items. This problem uses the strategy, divide and conquer; half of the items can be eliminated each time, making the task faster and easier to complete. Relate the task to the way a computer searches. Support your teaching and learning with video clips and other related resources.

Additional details

Year band(s) 5-6, 7-8
Format Web page
Core and overarching concepts Algorithms, Computational thinking
Australian Curriculum Digital Technologies code(s)
AC9TDI6P01   

Define problems with given or co developed design criteria and by creating user stories

AC9TDI6P02   

Design algorithms involving multiple alternatives (branching) and iteration

AC9TDI8P04   

Define and decompose real-world problems with design criteria and by creating user stories

Keywords Computation, Maps, Algorithms, Problem solving, Divide and conquer, Search algorithm, Searching, Halving
Integrated, cross-curriculum, special needs Mathematics
Organisation

University of Canterbury, New Zealand

Copyright

Creative Commons BY-NC-SA 4.0