The viewpoints of contributors to the forum are reviewed. Many of the disagreements represent fundamental differences in what constitutes evaluation. All four authors agree that the formative/summative distinction is useful and will continue to be an important concept in program evaluation, although the distinction needs greater clarification.…

Critiques the conclusions of S. Veenman (1995) about multigrade classes and suggests that selection bias and lower-quality instruction should be included as part of the explanation for his findings of no difference. Indicates that multigrade classes have at least a small negative effect on achievement and potentially negative effects on teacher…

D. Mason and R. Burns (1996) have concluded that multigrade classes have a slightly negative effect on students' achievement. However, a reanalysis, based on meta-analytic procedures, of the available studies shows the average weighted effect sizes to be essentially zero or close to zero. Contains 51 references. (SLD)

This review examines electronic braille input-output devices which have a braille keyboard for data entry and/or a braille display. Four braille notetakers and two braille computer systems are evaluated, commenting on their keyboards, ease of use, documentation, and analysis of speech and/or the braille display. (JDD)

Reviews "Soviet Studies in Mathematics Education: Volume 2. Types of Generalization in Instruction" (V. V. Davydov, National Council of Teachers of Mathematics, 1990), which is useful for educational researchers because its major theory of dialectical materialism offers a view of knowledge with a significant role for activities that…