A meta-analysis of 79 research reports on the effects of calculator use on students' achievement and attitude in grades K-12 was conducted. At all but one grade level, students using calculators maintained or improved their paper-and-pencil skills. Suggestions for the classroom are included. (MNS)

Findings of 79 research reports were analyzed to assess the effects of calculators on student achievement and attitudes. Except in grade four, use of calculators in concert with traditional mathematics instruction improved average students' basic skills with paper and pencil, both in working exercises and in problem solving. (MNS)

Integrates research on mathematics anxiety, regarding its nature, effects, and relief by using meta-analysis. Concludes that mathematics anxiety depresses performance and that mathematics and test anxieties both relate to general anxiety. Discusses the sex difference of the anxiety and its effects on achievement. (Author/YP)