A series of common misconceptions with regard to infinite sets is considered. Several notions of infinite numbers proposed by different mathematicians are compared. It is argued that so-called errors should rather be called alternative conceptions. (MNS)

Some of the errors associated with use of data from the National Center for Education Statistics' Higher Education General Information Survey (HEGIS) are described, 1980 HEGIS and census reports of college enrollment are compared in tables of data, and a more cautious use of HEGIS data is recommended. (MSE)

Preschool, second-, and sixth-grade children performed developmentally gradated, easy and difficult visual discrimination tasks in a quiet room or with one of two levels of extraneous auditory stimulation. Subjects' errors, response latencies, and glances away from the task were recorded. (Author/RH)

Two computer-based instructional design strategies were investigated to improve the two-phase process of concept learning by being response sensitive to error patterns. The first strategy determined the format of examples by adaptive or fixed selection; the second strategy adjusted the selection according to rules of generalization and…

The need to provide understandable problems and ways to help children understand problems are explored. An interview with a sixth grader depicts his incorrect strategies and leads to suggestions for teaching problem solving using a range of mathematical models for each operation. (MNS)

An information-processing model was tested for a laboratory visualization task that represents one adaptation of a standardized spatial ability test. The pattern of results suggests that individual differences are a function of differences in the accuracy and/or quality of the mental representation, not just speed of processing. (Author/BW)

Appraises the results of an exercise in which students in a composition class attempted to write detective stories. Concludes that many of their syntactic errors result from their intentions exceeding their level of writing skill. (RBW)

Presents the results of a study of the errors made on essays by Moroccan students of English as a second language. The average number of grammatical errors was 10.62 per paper and the most frequent errors were related to tense, prepositions, articles, form, and concord. (SED)

Lists and discusses certain recurrent errors made by adult Arab students of English literature at the university level. The errors were produced spontaneously in free writing and not through mechanical drills or isolated occurrences of sentences, so they reflect the learner's competence in English. (SED)

Examples of answers college students studying to be elementary teachers gave to sample student errors and questions in mathematics are presented. The bulk of the prospective answers are judged to have serious flaws. The analysis of such "poor" answers is suggested as a useful vehicle in teacher training programs. (MP)

This paper reviews research about how speaking a dialect can influence students' writing and how writing should be taught to students who speak a dialect of English. Literature on the writing errors commonly made by speakers of Black English and other American dialects is summarized. (PP)

A study compared the abilities of gymnastics teachers, physical education teachers, and education majors to analyze filmed gymnastic performances and detect errors. While gymnastics teachers identified the most errors, physical education teachers did little better than the education majors did. (Authors/PP)

The frequency and type of inappropriate word extensions (i.e., use of ball for moon) in the spontaneous speech of nine young language disordered children (2.8 to 3.4 years old) were studied. The percentage of inappropriate word extensions of these children was comparable to that of normal children at the same level of linguistic development.…

Findings on ratio and on fractions from a research project on strategies and errors in secondary mathematics are discussed, with typical errors described. Pupils seemed to learn rules without understanding. (MNS)

Five categories of answer-processing for computerized drill programs in foreign languages are described: nonevaluation, right-wrong evaluation, pattern markup, error anticipation, and parsing. Each strategy is explained in terms of its operation, advantages and disadvantages, ease of use for authoring courseware, and capability to support…