Tasha is studying for a test in geography. she has discovered that the word “homes” can her remember the names of the great lakes. tasha is using a(n) to aid her memory.

Tasha is using a mnemonic device to help aid her memory. This is a helpful tool for memorizing the names of various geographic areas, scientific approaches, language learning tools, and much more. A mnemonic device works by allowing the student to memorize a shorter, more meaningful phrase that can be broken down into additional information. For example, in this case "Homes" is a great mnemonic device for the Great Lakes because each letter in the word represents a lake:
Huron
Ontario
Michigan
Erie Superior
 
Works like a charm!