====== IMS LTI ======


  * https://learn-lti.herokuapp.com/
  * https://lti-examples.heroku.com/code.html
  * https://github.com/whitmer/learn-lti
  * http://www.edu-apps.org/index.html
  * http://www.edu-apps.org/index.html?tool=khan_academy#preview
  * http://www.edu-apps.org/index.html?tool=graph_builder
  * https://github.com/omsmith/ims-lti
  * https://github.com/brent20/LTIMaps
  * https://github.com/instructure/canvas-lms
  * https://github.com/whitmer/learn-lti
  * https://github.com/instructure/ims-lti
  * https://github.com/whitmer/edu_apps
  * https://github.com/instructure/canvas-lms
  * !!! http://rockymadden.com/lti.js/
  * http://www.imsglobal.org/lti/ltiv1p2pd/ltiCIMv1p0pd.html
  * !!! https://tech.coursera.org/app-platform/lti/
  * http://www.youtube.com/watch?v=3zTbtTldeiA
  * http://www.youtube.com/watch?v=3zTbtTldeiA
  * http://www.imsglobal.org/lti/

**node.js**
  * https://github.com/omsmith/ims-lti