Two groups of students at risk of not developing adequate mathematical knowledge and skills are (1) the "typical or usual" and (2) "the nominal mathematics students"--those who do not achieve at a satisfactory level in mathematics and/or do not enroll in mathematics courses beyond typical required courses. This digest provides information for preventing and reducing the problems related to at-risk students. Included are: (1) descriptions of the potential dropout and of the nominal mathematics student; (2) a summary of at-risk students; and (3) an outline of ways to reduce the number of mathematically at-risk students. This section lists some variables associated with elementary school mathematics programs which in various combinations tend to produce a lower percentage of dropouts and a lower percentage of nominal mathematics students. Seventeen references are listed. (YP)