No Science Teacher Left Behind
The Cassiopeia Project is an effort to make high-definition science education videos available to anyone who wants them.
If you can visualize it, then understanding is not far behind.
Improve your geography knowledge
-Locate the country on the map
-The game ends when three lifelines are exhausted (i.e. when three questions are answered incorrectly) or all eighty four questions are completed
-Use start/stop button to restart the game
ImageStamper | Stay Copyright-safe
ImageStamper is a free tool for keeping dated, independently verified copies of license conditions associated with creative commons images. You can use it to safeguard your use of free images from license changes, or to prove you are the original image creator. Simply paste the URL of the page that contains the image you intend to use. ImageStamper will produce a timestamp of the image’s license and will store this timestamp permanently in your account. The timestamp proves you obtained the image under that license and you can show it to others using a unique permalink.
Posted from Diigo. The rest of my favorite links are here.