some of the Angular examples don't work with current version (1.3.11) of angular.js
the example at http://www.w3schools...y_ng_controller
works fine until you change the version from 1.2.26 to 1.3.11
so changing the line
<script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.2.26/angular.min.js"></script>
to
<script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.11/angular.min.js"></script>
breaks the example.
This also applies to other examples that use controllers.