Learning the meaningful use of the microscope is an essential requirement in school curricula. Modern science and medicine is hardly conceivable without the inclusion of microscopy. The number of didactic studies in this area, however, is negligible. Real microscopy is rarely used to gain knowledge in higher school years. Could the understanding…

Although instructional technology has made large gains in the last 15 years in terms of the quantity and quality of computers available in schools, major questions remain about the effects of all this technology on student achievement. The author has conducted a series of studies to address these questions. By analyzing test score and…