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451.
452.
On the testing of standards and standardized achievement testing: Panacea,placebo, or pandora's box?
Parents and educators concerned with the quality of education in Canadian schools have been subjected to a concerted campaign (through editorials, columns, and letters to the editor in major dailies and magazines, as well as a spate of books with alarmist titles) aimed at convincing them that the lack of adequate testing represents a major shortcoming and a stumbling block to educational reform. Provincewide and nationwide standardized achievement tests are offered as an indispensable tool to understand what works and what does not, to let parents know how schools are doing and how well their children are performing, and to make teachers and school boards accountable. Provincial education authorities are finding it increasingly difficult to resist the pressure, with Ontario the latest to jump on the testing bandwagon. However, although concerns about school curricula and about the best methods for testing student learning and performance are legitimate, the belief that standardized achievement tests are part of the solution to many ills allegedly afflicting our educational system does not stand up to the increasingly clear evidence of the many problems associated with the construction and administration of these tests, as well as the misuse and abuse of test scores. Far from being a panacea, this approach has proved to be fraught with dangers and adverse effects, from a narrowing of the curriculum to overemphasis of routine processes at the expense of higher learning skills, with virtually no empirical support for the purported benefits. With Canadian students facing the risk of being subjected to the same abuses as their U.S. counterparts, this paper reviews recent contributions and attempts to alert educators and policymakers to the serious deficiencies of this type of testing. 相似文献
453.
454.
Principled Teaching for Deep Progress: Improving Mathematical Learning Beyond Methods and Materials 总被引:2,自引:0,他引:2
This paper contributes to knowledge about principled action which makes a difference to learners attainment. We report on the Improving Attainment in Mathematics Project,1 a project focusing on low-attaining secondary students. The purpose of the project was to introduce innovations in practice through action research with 10 teachers over 2 years, and evaluate the effect on students learning using national test scores, teachers reports, non-routine tasks and other performance indicators. However, this is not a study which shows how certain methods lead to better results. While it was found that learning improved, the methods and strategies the teachers used were not always generalisable across the project, indeed some were contradictory. Continued searching led to the identification of common underlying principles of teaching which different teachers manifested in different ways. Overt methods were less important than the collection of beliefs and commitments which underpinned teachers choices. There was, however, a convergence of practice around a focus on long-term development, the process of becoming a learner of mathematics, rather than short-term gains. In addition, we had to deal with some of the realities of authentic collaborative research with practitioners. 相似文献
455.
Dyer A MacSweeney M Szczerbinski M Green L Campbell R 《Journal of deaf studies and deaf education》2003,8(3):215-229
Deaf readers often fail to achieve age-appropriate reading levels. In hearing children, two cognitive factors correlated with reading delay are phonological awareness and decoding (PAD) and rapid automatized naming (RAN) of visual material. In this study we explored the contribution of these factors to reading and reading delay in a sample of deaf students (N = 49, mean age 13 years) whose reading age (RA) was around 7 years. Although PAD performance was poor in the deaf students compared with RA-matched hearing controls, it nevertheless correlated with their RA. Whether tested in sign or speech, RAN was much faster in the deaf group than in RA-matched hearing controls but showed no direct relationship with reading level or reading delay. We conclude that in contrast to PAD, which is a factor in both deaf and hearing reading achievement, RAN may be only indirectly related to reading in deaf students. 相似文献
456.
In one experiment, the rate and pattern of responding (head entry into the food cup) under different distributions of intervals
between food deliveries were examined. Separate groups of rats received fixed-time (45, 90, 180, or 360 sec), random-time
(45, 90, 180, or 360 sec), or tandem fixed-time (45 or 90 sec) random-time (45 or 90 sec) schedules of reinforcement. Schedule
type affected the pattern of responding as a function of time, whereas mean interval duration affected the mean rate of responding.
Responses occurred in bouts with characteristics that were invariant across conditions. Packet theory, which assumes that
the momentary probability of bout occurrence is negatively related to the conditional expected time remaining until the next
reinforcer, accurately predicted global and local measures of responding. The success of the model advances the prediction
of multiple measures of responding across different types of time-based schedules. 相似文献
457.
458.
Mesut Saçkes Mandy McCormick Smith Kathy Cabe Trundle 《International Journal of Science Education》2016,38(1):116-129
The purpose of this cross-cultural study was to describe and compare US and Turkish children's observational knowledge of the day and night cycle and to identify similarities predicted by framework theory. Fifty-six (27 US and 29 Turkish) young children (ages 48–60 months) participated in the study. Semi-structured interviews were individually conducted, digitally recorded, transcribed, and analyzed using the constant comparative method. The results demonstrate that preschoolers from the two cultures are able to make comparable informal observations of the sky, and their observational knowledge includes many similarities, with one exception, as predicted by framework theory. US children were more likely to perform better than the Turkish children on the question about the time of observation for the moon. Although science concepts and skills are better represented in US early childhood education programs than the Turkish program, the results suggest that this advantage did not translate into performance differences between US and Turkish children. 相似文献
459.
In three experiments, we set out to determine whether the response of rats to an injection of LiCl would be modified by the presence of an environmental context that had previously been paired with LiCl. Experiment 1 confirmed that one feature of the malaise produced by LiCl is a reduced tendency to consume an otherwise palatable flavor. Experiment 2 showed that the size of this response was enhanced if it was measured in the presence of a conditioned context. In Experiment 3, we investigated the possibility that the postinjection response could be modified by an overshadowing treatment given during the conditioning phase. The significance of these findings for the understanding of chemotherapyinduced nausea in the clinical population is discussed. 相似文献
460.
Two studies are reported in which coaches of Dutch top level athletes ranked 10 general factors recognized as predictors of athletic performance. In the first study, the coaching staff of the national teams in judo, speed skating, swimming, and table tennis were involved (n=50), and in the second coaches in field hockey, golf, and track and field (n=65); in track and field, two types of athlete were assessed: the “explosive” and the “endurance” types. Agreement among coaches within a sport appears to vary from rather high to quite low, indicating that they do not always rank the various factors in an identical way. In spite of these imperfect interjudge reliabilities, most of the groups of coaches made very similar group rankings, in which three factors were generally considered to be of primary importance: physical fitness, mental fitness and natural endowment These findings are discussed in the context of the emphasis which is often given to the effects of the immediate environment in the development of talented individuals. 相似文献