SECONDARY SCHOOL SCHEDULING
References to secondary school scheduling appear in the literature as far back as the 1890s. However, the earliest period of intense interest in high school scheduling practices occurred in the 1930s. Douglas (1932), Langftt (1938), and Puckett (1931) conducted surveys of contemporary scheduling practices and published their findings in periodicals and scholarly texts. Avoiding the promotion of one design over another, these authors served as resources to school administrators on common practices of their contemporaries. No one model was promulgated as most advantageous or purported to improve the instructional process. Research on the effectiveness of various models was absent in the literature of the period.