Preparation:

• Vectors/Subtraction/Explain It/Add-the-Negative
• Vectors/Subtraction/Explain It/Comparison

The applet on Page 2 will let you

• draw two vectors,
• find their difference graphically, either by the Add-the-Negative method or the Comparison method,
• compare the difference as drawn by you to the correct difference.

Details on how to use the applet and a lesson on vector subtraction, including related calculations, are available under Applet Help on the applet's Help menu.