1 / 11

The SwapPuzzle So what is an algorithm?

The SwapPuzzle So what is an algorithm?. Prof Paul Curzon Queen Mary, University of London. With support from Google, D of E and the Mayor of London. www.teachinglondoncomputing.org Twitter: @TeachingLDNComp. Aims. Give you deeper understanding of core topics What is an algorithm

loyal
Télécharger la présentation

The SwapPuzzle So what is an algorithm?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The SwapPuzzleSo what is an algorithm? Prof Paul Curzon Queen Mary, University of London With support from Google, D of E and the Mayor of London www.teachinglondoncomputing.org Twitter: @TeachingLDNComp

  2. Aims • Give you deeper understanding of core topics • What is an algorithm • Efficiency of algorithms • Computational thinking • Give you practical ways to teach computing in a fun, thought provoking way • away from computers, focus on concepts • Linked activity sheets and booklets can be downloaded from our website: www.teachinglondoncomputing.org

  3. What do we mean by Artificial Intelligence? • Computing is about making intelligent machines • How is it done?…with algorithms • What do we mean by human intelligence? • If we identify abilities in humans as intelligent, we can then build machines to have these abilities. 1

  4. The Swap Puzzle Aim • Swap the red/blue pieces in as few moves as possible. Two kinds of move: • Move a piece to a free adjacent square • Jump an adjacent piece into an empty space Square 0 Square 1 Square 2 Square 3 Square 4

  5. Write out the algorithm Use the instructions of the form <to> GETS THE PIECE FROM <from> For example, for a 3 square board: Step 1: Square 1 GETS THE PIECE FROM Square 0 Step 2: Square 0 GETS THE PIECE FROM Square 2 Step 3: Square 2 GETS THE PIECE FROM Square 1 Then test it really does work!

  6. Execute it: role playing • Then execute it by role playing • with kids as pieces • Board 1 target time: 15 seconds • Board 2 target time: 40 seconds • Board 3 target time: 75 seconds • How many steps are needed? An online version of the swap puzzle is available at www.cs4fn.org/algorithms/swappuzzle/

  7. Algorithms • Once you solve a problem … • write out the algorithm • you can then solve it again without thinking • It is important to test algorithms • Does it really work? • There can be many algorithms to do the same thing • Some faster than others • Faster if it has fewer steps to follow

  8. Computational Thinking Lessons • Algorithmic thinking • Attention to detail • Need for evaluation • Think about efficiency

  9. Summary Algorithms and algorithmic thinking can be introduced in lots of fun ways • Away from computers! • With games • With magic • With puzzles

  10. More support On our website to support this session: • Activity sheets • Story sheets • Slides Details of more worskshops/courses • free unplugged sessions • subsidised courses (e.g. GCSE programming) www.teachinglondoncomputing.org Twitter: @TeachingLDNComp

  11. Together we areTeaching London Computing Thank you! www.teachinglondoncomputing.org Twitter: @TeachingLDNComp

More Related