Final answer:
Addie used a mnemonic device, visualizing the letters 'ND' on a biscuit, to successfully remember the capital of North Dakota, Bismarck, for her test.
Step-by-step explanation:
The strategy that helped Addie remember the capital of North Dakota is known as a mnemonic device. This creative memory aid involved visualizing the letters ND standing on a biscuit, which helped her remember the capital, Bismarck, during her test. Mnemonic devices can take various forms, such as acronyms, acrostics, or vivid mental images that are designed to be easily recalled.
For example, the acronym HOMES helps to remember the five Great Lakes - Huron, Ontario, Michigan, Erie, and Superior. Similarly, the sentence "Please Excuse My Dear Aunt Sally" assists in recalling the order of operations in mathematics. By creating a mental link between a concept and a memorable phrase or image, mnemonic devices enhance memory retention and retrieval.