When Sammy had to learn the names of all the planets, as well as their relative sizes, he made up sentences to help him create meaningful links between the concepts. For example, "Eartha ate the Mars candy bar" helped him remember that Earth is larger than Mars. Sammy was using a memory strategy called ________.

Elaboration is a form of strategy that people can use in learning process. This can be done by using small combinations of words that might not mean anything for other people, but each individuals could use those words as a simpler form to remember an information that they read/heard in the past.

For example,

Sammy use this sentence in his learning tricks:

"Earth ate the Mars candy bar"

That sentence might not mean anything for any other people. But for Sammy personally, that sentence can be translated Earth is larger in size compared to Mars, which is why Earth can eat it.

Making a sentence that is unique and personal to him make it easier for Sammy to remember the information regarding the planet's size.