Asymptopia Crossword Builder (Math/Text): This application runs in any modern web browser, but does not require an internet connection (if downloaded and installed locally). The application was designed to allow teachers to quickly produce well-designed, challenging activities. The application features a configuration panel where the user can either enter their own word-hint pairs, or generate math-crossword problems via a single button. The math functionality generates word:hint pairs like: "four:7/x-3/8=11/8", where the hint corresponds to the problem, and the student would write the letters "four" in the corresponding boxes of the puzzle. A completed puzzle consists of three (3) sheets: Answer Key, Puzzle Sheet and Hints Sheet. Use your browser's built-in print functionality to print each of the pages, and hand your student the paper copy to be completed with pencil. Virtually every subject has associated terminology, and many variations are possible. For example: On the website you can find a list of countries, and their center-of-mass lattitudes and longitudes, from which you can quickly construct a puzzle with word:hint pairs like "Australia:lat=-27, lon=+133". Give your student a globe and such a puzzle, and let them learn geography and spherical geometry, simultaneously!