Go to Gyazo.com and download it for free. These two icons will appear, on the bar, at the bottom of your screen.
Go to YouTube and find a song you would like to use for this assignment. Make sure it is high quality.
Find the part in the music video that you want to turn into a GIF.
Click the video reel in circle and as the video is playing, highlight where you want your GIF to start. It will automatically end on its own.
Save the GIF to your computer