Abstract
The HyperCard Stack "German Exercise" was produced to give students more practice in basic German vocaburary and grammar that they are just short of. "German Exercise" is mainly used as self-teaching material. For the students who have failed the regular classroom examination, it also provides additional opportunities to make up. Students appreciate this sort of retest because they can try it over and over again. We make a few suggestions to those who would like to produce their own stacks. We also report how questions of the stack function one by one and how we have used it in practice for these years.
