In assessing the quality of science teaching for an effort such as the National Assessment of Educational Progress (NAEP), it is important to understand what is meant by scientific thinking--the search for explanations. Instruction should involve higher-order cognitive skill development, but it is difficult to measure reasoning and understanding…

Beginning in 1950 the National Association for Research in Science Teaching and the U.S. Office of Education collaborated in preparing an annual summary of research in the teaching of science. The present bulletin continues their cooperative effort. This analysis of research in the teaching of science contains reports of published studies…

This publication continues the annual series of bulletins begun in 1950 as a cooperative undertaking between the National Association for Research in Science Teaching and the Office of Education. The present bulletin summarizes and interprets the research in science education from July 1956 to July 1957. The improvement of teaching in science, as…