1. [b]Look for the gray segment[/b] in the applet.[br][list][*]You’ll see two [b]BIG WHITE POINTS[/b] at each end of the segment.[/*][*][b]Click and drag [/b]these white points to move them around and change the segment.[/*][/list][br]2. [b]Find the slider bar [/b](usually located at the bottom of the applet).[br][list][*]Slide it left and right to observe how the construction changes.[/*][*]You can move the slider by clicking and dragging the dot.[br][br][/*][/list]3. [b]Spend a few minutes interacting[/b] with the applet.[br][list][*]Try different positions for the segment and the slider.[/*][*]Watch carefully what happens to the line that appears when you move things.[/*][/list][br]4. If you’re unsure what to do or want to check your understanding, scroll to the bottom of the page and [b]watch the “Quick (Silent) Demo.”[/b][br]