Mnemonic Device can also be used to connect what is in the image in relation to what is actually being referenced, BUT the TRICK is to not be TOO "see-and-say". Design uses mnemonic devices for just enough of a reference without just being the color red to remind you of the color red. The Grow The Game works because it references the growth of a plant, as well as multiple members of a team - neither without actually being a plant or people. Once the logo is learned, the logo itself becomes a mnemonic device.
-image from http://growthegame.com/files/2011/11/grow_the_game_post11.jpg
Find an image on the web and paste in the site's address. I prefer just the image's address, but a page is OK. In the comments below this, explain how this is a mnemonic device per graphic design. Explain it correctly! This is a difficult one!
Please check this each Monday of the semester for information. Put this in your head. Use it. Live it. Be a great designer.