Western Bulldogs Number Place Logo

WesternBulldogs_smallThis post was inspired by Simon Job. He has used Geogebra to produce co-ordinates of the outline of a picture. These co-ordinates are then transferred to Excel and then pasted into Word to produce a “Join the Dots” activity to give students practice at locating points on a cartesian plane. His Brisbane Broncos Number Place Logo was posted on 20 Sep, 2009.

I particularly liked Simon’s idea, so I set out making one of my own. Unfortunately I soon became frustrated because I couldn’t work out how to paste a picture into Geogebra. Is this only available in the Apple version? So I started to think about what software I had previously used that could work. My memory still works sometimes and I recalled DigitiseImage.

So I looked at all the AFL clubs and then imported the Western Bulldogs logo into DigitiseImage. I then set the scale and clicked on points all around the logo.

western_bulldogs1a I then clicked the open in Excel button. Having the co-ordinates in Excel is a great advantage. You can easily transform the drawing. For example: moving between quadrants (=A1-10) and changing the scale of the drawing (=A1*4). I also checked what the final diagram would look like with the following:  Insert Chart, XY Scatter.

Excel chart wizardThis is what my bulldog now looked like:

western_bulldogs2Notice that the Excel scattergraph will not join points back up to the starting point! No worries, now paste into a Word document.

You can download my finished worksheet from scribd: Western Bulldogs Co-ordinates.

About webmaths

I have been teaching Mathematics in Victorian secondary schools for 30 years. I use the www to make my maths lessons better. I hope this blog will give other teachers some ideas to try in their own classes.
This entry was posted in Teaching Ideas, Worksheets and tagged , , , , , . Bookmark the permalink.

3 Responses to Western Bulldogs Number Place Logo

  1. Simon says:

    Nice Jeff.

    In GeoGebra, the second last icon on the right is the slider. Drop down from that is “Insert Image” – in Windows and Mac versions.

    Also, I used GeoGebra because it’s the application installed on the Netbooks being rolled out in NSW (http://www.schools.nsw.edu.au/gotoschool/highschool/dernsw/thelaptop.php#software).

  2. webmaths says:

    Thanks Simon, I hadn’t noticed the little drop down arrows before!

  3. I actually blog as well and I am writing a thing very close to this excellent blog post, “Western Bulldogs Number
    Place Logo Webmaths”. Would you mind if perhaps Iemploy a lot of of your personal suggestions?
    Thank you ,Hershel

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