i have the teachers editions for the books used in SPAN 051/052. fuentes convesacion and gramatica, and fuentes lectura y redaccion. These books are seperate, and both are "instructor's annotated editions". they have answers to a lolt of the activities. the 2 books are the same as the 100$ + combo book they are selling in the bookstore. I have the CD that comes with the textbook too. email if you are interested.