The slow learner is defined as a student whose IQ falls between 75 and 90 or who ranks below the thirtieth percentile of the student population in mathematical achievement. His characteristics and special needs are discussed in some detail. A presentation of selected methods and techniques for instructing slow learners to add and subtract non-decimal fractions follows. Behavioral objectives, specific topics, and an estimated schedule are given. Resources required for this instruction are described. The strategy employs concrete examples to the maximum extent possible. The laboratory approach and discovery methods are recommended. The nature and use of a particular teaching aid are discussed. The emphasis in evaluation is on each student's progress. (KM)