Improving teachers' content knowledge in mathematics is one way to address the ongoing national concern of poor performance in math. The purpose of this study was to investigate the impact of self-regulated online professional development for teachers' knowledge of fractions, decimals, and percentages, as well as factors prompting that impact.…

This report describes comparative evaluations of the Distar I (first grade) and Distar II (second grade) programs which were carried out in 1972-1973. Results showed: (1) the Distar program for first grades had no conclusive advantage over traditional instruction for the development of oral language or reading achievement; and (2) second grade…

Even after a number of innovative programs and proposals have met selective criteria, the Educational Research Commission will have a difficult task in assigning priorities and spreading resources. This paper offers many suggestions for handling the problems in research and evaluation related to innovative mathematics projects, especially K-3. For…

This report describes the evaluation of the 1973-1974 Distar I and Distar II programs, which were used as Title I programs for first and second graders. Distar I was used with two first grade classes; Distar II was used with two second grade classes. Children who had completed two years of Distar instruction received traditional instruction in…