chronos

Drag pictures from the bar on the left and drop them in chronological (time) order on the red dots on the right.  Earliest picture on the upper left dot then the next on the upper right dot, then lower left, and finally lower right.

At times the pictures represent the same object growing or scene changing over its life and at times a class of objects (see the screen shot) that change as they are improved in design over time.

Drag and drop doesn't work well on the XO.  Instead, click on the item and then click on the red dot.

 Page last changed: 06/14/2008