Background Paragraph: Figure B above shows an important relationship between the wavelength and frequency of a wave. The top wave clearly has a shorter wavelength than the second wave. However, if you picture yourself at a stationary point watching these waves pass by, more waves of the first kind would pass by in a given amount of time. Thus the frequency of the first waves is greater than that of the second waves. Wavelength and frequency are therefore inversely related. As the wavelength of a wave increases, its frequency decreases. The equation that relates the two is. 
Story: Bill is working in a sound studio recording sound effects for a short film that he is working on. Some of the sounds he captured have a very high frequency and others are very low frequency. When he is done he begins to edit the sound with a computer program.
Do the high frequency sounds have a longer or shorter wavelength than the low frequency sounds? Do the low frequency sounds have a longer or shorter wavelength than the high frequency sounds? If Bill edited one sound to have a higher frequency did its wavelength become longer or shorter? If Bill edited one sound to have a longer wavelength did its frequency go up or down? If Bill edited one sound to have a lower frequency did its wavelength become longer or shorter? If Bill edited one sound to have a shorter wavelength did its frequency go up or down?