This study examined the influence of virtual manipulatives on different achievement groups during a teaching experiment in four fifth-grade classrooms. During a two-week unit focusing on two rational number concepts (fraction equivalence and fraction addition with unlike denominators) one low achieving, two average achieving, and one high…

The authors' purpose was to study the efficacy of patterning instruction in improving the reading and mathematics proficiency of first grade children. Patterning instruction was compared to equal time and effort spent on instruction on reading or mathematics or social studies, which are control conditions in this experiment. The question for…