This chart will be of great use for Common Core math when students come to story problems. Great key words!
Mary Van Peursem
Key Words Used In Math Word Problems ($)
Math Symbols Poster ...
Could do something similar for integrated science and defining the variables for power, velocity etc.
Here's a terrific reference sheet for inclusion in math notebooks.
Things This Teacher Just Couldn't Resist
Math Story Problem Types (direct link to free pdf) Wonderful reference guide
Keys to Math signs.
What Can I Say To Myself? from Runde's Room
A+ Teaching Tips