This study was concerned with the verification of a learning hierarchy for the mathematical task of adding fractions, when group learning procedures involving teacher-student interaction were used. Through a task analysis procedure a hierarchy of 13 subordinate skills was hypothesized, behavioral objectives were specified, and a curriculum…

This study of a role change intervention, a type of cross-age tutoring, was conducted as a "true" experiment. Forty tutors from four low-achieving ninth-grade general math classes and 68 tutees from three fourth-grade classes were randomly selected. The classes were in inner city schools in which about ninety percent of the students were black and…