10 words

1. negative/positive number
2. add/subtract
3.multiply/divide
4. fraction
5. parallel/perpendicular lines
6. variable
7. area
8. function
9. equation
10. inequality

Most of these words are concepts rather than vocabulary words, but the standards for math don't have a vocabulary section for the curriculum. I chose these words because I think they are the fundamentals and basics of math. As students keep going on in their math careers they will come across these all at some point and many of these words/concepts will be used together in harder math problems. If students do not understand these words right away, then when they continue onto harder math classes they will be lost  because they will be building different concepts on the foundation of these words. For example, if a student doesn't understand what a variable is then later on when they start to do word problems and need to come up with equations they will be even more confused. I feel that these words are very basic, but in order for students to be successful I think they must know these words to move on to more difficult math.