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  <resource>
  <id>9552</id>
  <path>/www/nrich/html/content/id/9552/</path>
  <resourceTypeID>6</resourceTypeID>
  <last_published>2012-10-12T10:03:50</last_published>
  <indexXML>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
&lt;mdoxml version=&quot;1.0&quot;&gt;&lt;iframe height=&quot;600&quot; src=&quot;saved_resource.html&quot; width=&quot;800&quot;&gt;&lt;/iframe&gt;
&lt;p class=&quot;right&quot;&gt;&lt;a class=&quot;fullscreen&quot; href=&quot;/content/id/9552/saved_resource.html&quot;&gt;View full screen&lt;/a&gt;.&lt;/p&gt;
&lt;h2&gt;Instructions&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Click on a node to select it. Drag to move it.&lt;/li&gt;
&lt;li&gt;&lt;em&gt;Shift-click&lt;/em&gt; on an empty space to add an edge to a new node.&lt;/li&gt;
&lt;li&gt;&lt;em&gt;Shift-click&lt;/em&gt; on an existing node to add an edge to that node.&lt;/li&gt;
&lt;li&gt;Press the &lt;em&gt;delete&lt;/em&gt; key to delete the selected node (and associated edges).&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;a href=&quot;http://www.jasondavies.com/psum/graphs/notes/&quot;&gt;Tutor Notes&lt;/a&gt; | &lt;a href=&quot;/content/id/9552/case.html&quot;&gt;Case Study&lt;/a&gt;&lt;/p&gt;
&lt;p class=&quot;footer&quot;&gt;Built by &lt;a href=&quot;http://www.jasondavies.com/&quot;&gt;Jason Davies&lt;/a&gt; for &lt;a href=&quot;http://nrich.maths.org/&quot;&gt;nrich&lt;/a&gt;.&lt;/p&gt;&lt;/mdoxml&gt;</indexXML>
  <solutionXML/>
  <noteXML/>
  <clueXML/>
  <canonXML/>
  <end_user_role>2</end_user_role>
  <difficulty>3</difficulty>
  <keystage1>0</keystage1>
  <keystage2>0</keystage2>
  <keystage3>0</keystage3>
  <keystage4>0</keystage4>
  <keystage4plus>0</keystage4plus>
  <title>Graphs</title>
  <description>A node-arc graph creation tool developed for the PSUM project.</description>
</resource>