When confronted with this problem, most people approach it by remaining within the boundaries of the dots. However, when one moves outside of the confines of the dots and the boundaries are reset, one can easily solve the puzzle.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072986956/263421/dotssolution.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>

This exercise helps illustrate that some problems cannont be solved with traditional thinking.