SABOTAGE! A Lesson in Open Crowd-Sourcing

UPDATE: I have had an email from a teacher in Melbourne, Australia who has explained that it was her students who messed up the Paris map. It was by accident and not at all malicious, they were trying to create a Maths Map of their own for Melbourne. I am relieved to hear that it was non-malicious, but it has highlighted some important issues for me.

Last night I checked in with the Shapes in Paris Maths Map to check to see if others had added any other placemarks or activities. Initially I couldn’t find the map – only “Maths in Melbourne” which I hadn’t created. This is when I uncovered the sabotage.

Unfortunately “medg” (from their Google profile – last edited by…) had moved all of the Paris placemarks to Melbourne in Australia. They were able to do this because I set the maps to be (a) Public and (b) Open to editing. As the placemarks are location specific it was a long process to find the exact points the activities referred to.

I have managed to recover the map and even add some new placemark activities about Shape and Space to extend the ideas to “51 Shape Activities”. I suppose I should have seen something like this coming, but never expected someone to go to so much trouble to disrupt the resource. As John Johnston remarked maybe not naive of me just “uncynical“.


View 51 Shape Activities in Paris in a larger map

The Maths Maps have been getting a huge amount of traffic. They are in the public domain and I presume that they can be found in searches of user generated Google maps. The three maps have had over 60,000 hits combined and the Paris map over 25,000. Unlike the “Interesting Ways” series the maps are discoverable and openly public. I think that explains the traffic (which I know is not teachers) and also the higher risk of someone messing them up for a laugh.

I still subscribe to the powerful process of crowd-sourcing to generate resources but will be closing the maps to open collaboration because of the higher traffic and higher risk. If anyone wants to contribute some ideas, and I really encourage you to help, then please just send me your GMail and I will add you as an editor. I think this is the right thing to do rather than always backing up and leaving it open to anyone to mess around with – after all I think that the bulk of the traffic is the public, and not educators.

Shapes in Paris – NEW Maths Map

Hot on the heals of Measures in Madrid here is the next addition to the Maths Maps series. Shapes in Paris makes the most of this beautiful city and the maths that is visible in Google Maps.

SHAPE IN PARIS

View 24 Shape Activities in Paris in a larger map

I have had a lot of fun exploring the city from above! One facet of Google Maps is Streetview which gives us a wonderful 1st person view of the city streets. I used this same view to set some questions about what could be seen.

For example, here is a Police car and on the bonnet is the mirrored word Police written in block letters. Some of the letters are great examples of regular and irregular shapes.

Streetview Shape Questions

From space we have zoomed right down into some lettering which can only be about a metre across! This is the sort of detail that Streetview offers us and our students and I would love to see more Maths Maps questions using Streetview.

In the last few days I have heard from a few teachers in my Twitter network who have used the Maths Maps idea already with their classes and it is thrilling to here it making a difference in other classrooms.

That is the very reason why I share my ideas here.

Maths Maps – A New Collaborative Project

I am excited to introduce you to my new project idea that I hope will result in some engaging content for our classes. It is collaborative in the same way the Interesting Ways resources are and I will need your help to make it a success.

Elevator Pitch

  • Using Google Maps.
  • Maths activities in different places around the world.
  • One location, one maths topic, one map.
  • Activities explained in placemarks in Google Maps.
  • Placemarks geotagged to the maths it refers to. “How wide is this swimming pool?”
  • Teachers to contribute and share ideas.
  • Maps can be used as independent tasks or group activities in class.
  • Maps can be embedded on websites, blogs or wikis.
  • Tasks to be completed by students and recorded online or offline.

Some background

Four years ago I created Google Earth resources for the classroom and posted them to the GE Community Forum. Two of them were called Maths in Madrid and Maths in Las Vegas. These were based on the fact that there is maths all around us, every day, everywhere we look. Google Earth (and Maps) gives us a great perspective on it all. It also provides easy access for our students to see rich visual content that depicts everyday maths. I have always loved the idea of children seeing the maths they are working on.

The only issue with Google Earth is that it is restrictive in two ways. It is not browser based and it is impossible for me to create a resource for others to collaborate on.

Luckily Google Maps has caught up and using the collaborative features I can now invite other teachers and educators to help build on these resources. It is exciting to return to these old ideas and work on them with you all.

First Attempts

Earlier today I invited some people on Twitter to help me make a start and it was great to see loads of ideas added to the Maths in Madrid map I had generated, based on my original work. There were questions about shape, time, money, rotational symmetry, you name it! (Thanks to all those who helped!)

View Maths in Madrid in a larger map
Please don’t add to this map any more – see the Measures in Madrid map below.

The problem here is that although the ideas were organised under maths topics (see map) with different coloured pins, there was no distinction between age appropriateness. There would be too much to filter out for the teacher or student.

With help and direction from those collaborating, I took a simpler approach and created a Measures in Madrid map that collates maths ideas about the one topic. This time the placemark icons are used to distinguish which age group it is best for. See below.

I think this is much easier to use because the map is about one topic, but shows the grade/age level too. Many different maps can be created to cover lots of different maths topics.

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Measures in Madrid – How can you contribute?

  1. Explore the map below for the ideas already added, follow the link to open it in a new window.
  2. Make sure you are signed in to your Google account.
  3. Click on EDIT in the left panel.
  4. Zoom close to the city and it’s surroundings. (Don’t forget Streetview)
  5. Find some MEASURES ideas you can see.
  6. Add a placemark (use the right colour for the age group it is best for – see purple pin)
  7. Explain the activity in the description.
  8. Change the title to show how many ideas there are.
  9. Send out a Tweet or write a blog post to highlight this resource and encourage others to contribute.


View 7 Measures Activities in Madrid in a larger map
There are endless amounts of maps we could make and once this one is up and running I will be highlighting some more. I will be embedding them all on the MATHS MAPS page of this blog too.

Please help by contributing just one placemark – let others know about the maps so we can gather lots of ideas.