Matching explained - perhaps a little better

In matching, you can only use each letter once but you don't have to use all letters. So I have a list of 16 words on the left side of the page with blanks next to them. On the right side of the page I have A-Z of definitions. Obviously, some definitions won't be used.
The answer to vocabulary 1 is C, the answer to vocabulary word # 2 is H. Keep going and you finally get "chadlikesnutjobs." The "F" definition doesn't match any of the words on the left.

I hope that makes more sense.

As Chip mentioned in an earlier comment, I do the same thing for multiple choice. Imagine grading 25 multiple choice questions with an answer key that looked like this: 1. A 2. D 3. A 4. B 5. B 6. A 7. C 8. C... It is a mind numbing experience.

I learned it is easier to grade if the answers fall into a pattern.
aabbccdd ddccbbaa aabbccdd ddccbbaa a

There are 25 answers above and I bet you could easily remember them. Once you remember the pattern you can grade all of your tests without having to look at the answer key.

There are many, many combinations:

acdb acdb acdb acdb....

bad dad bad cade dead abe

My person favorite:

abba acdc bad

Do students see the patterns? Only the good students and they're getting an A anyway. I gave the same finance final to over 200 students. The answers were nothing but a repeating AABBCCDD DDCCBBAA AABBCCDD DDCCBBAA.... Only one person got 100% right.

Teaching six different classes at Hamilton and doing weekly quizzes in many of them made grading quickly essential.