Teachers spend most of their time in school in classrooms, and their instruction and teaching practices may be affected by classroom context such as class size. We examine whether teacher effects interact with classroom context such as class size. Specifically, we seek to determine whether teacher effects are more pronounced in small classes than…

The Virginia Beach City School System has utilized an experimental school year plan known as 45-15. Under this plan, schools remain in session throughout the year and students are assigned to one of four attendance cycles which begin 15 days apart. As a result of the staggered attendance pattern, only three groups (cycles) of students are in…

This document is an English-language abstract (approximately 1,500 words) of a book which purposes to elucidate the connection between the development of pupils and their assimilation of knowledge and habits in the experimental grades of a new system of elementary education. Various methods of investigation were used: observation during lessons,…

Two forms of a mathematics achievement test were developed for use in the evaluation of an experimental instructional program at the seventh grade level. Subjects were drawn primarily from minority groups at three urban junior high schools; all were of approximately normal scholastic aptitude, but one year or more behind their peers in mathematics…

The Cluster Concept Program in vocational education, a program for the 11th and 12th grades, is designed to prepare youth for entry level capability in a variety of related occupations rather than a specific occupation. Phase III of research with the program was the evaluation of the first year of experimentation with the programs for the 11th…