A group of students normally distributed in aptitude and given the same instruction will produce a normal distribution of student achievement. It has been contended that if each of five primary variables in learning are optimized for each student, all students should be expected to achieve mastery of the material. These variables are (1) aptitude…

Two Basic Skill Centers were set up in 1969 to help inner city students improve their reading skills. The centers were supported mainly by the Minneapolis Public Schools although ESEA Title I funds provided teacher aides. This report covers the fifth year's operation of the project. Substantial changes made in the centers' operations are…