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501.
A ‘visiting teacher’ gave her lesson, then asked children for evaluations of (i) how they regarded her, (ii) how they thought she regarded each of them and (iii) how they regarded themselves, so as to provide baseline measures for the study. On her next visit she formed three treatment groups by giving out her own evaluations of each child on individual cards, praising the behaviour of one third of the class, criticising another third while the remaining third received no feedback cards. The same measures were then taken a second time. From the results, children did not appear to process praise or criticism as mirror opposites. In particular, criticism appeared to be deflected into negative ratings of the teacher rather than of the self. Results are considered in terms of a selective gating hypothesis and wider implications are discussed. 相似文献
502.
The purpose of this investigation was to qualitatively investigate the effects of a microteaching course on preservice science teachers' perceptions of teaching, instructional decisions, and changes in beliefs which occur throughout the course. A total of 17 preservice teachers constituted the sample for this investigation. In addition to viewing and self-critiquing the videotapes of their lessons, students received both oral and written feedback from peers and instructors. Subjects were also required to complete a reaction questionnaire concerning their beliefs/perceptions prior to the first presentation as well as following each of the four required presentations. Systematic comparisons among students' self-critiques and reaction questionnaires yielded a total of 12 categories of concerns/beliefs about teaching. These categories pertained to either “Concerns for Self” or “Concerns for Students.” Although the subjects appeared to proceed through a developmental process beginning with concerns for self and moving toward concerns for students, analyses of subjects' comments about students revealed that such remarks were actually egocentric. Additionally, the data indicated that preservice teachers view planning as a complex, two-component process (i.e., the physical act of writing a plan and the subsequent mental rehearsal of that plan.). 相似文献
503.
The study investigated the relationship between instructional context (integrated and non‐integrated) that explicitly teaches about nature of science (NOS) and students’ view of NOS across different disciplines. Participants were three teachers and their students, which comprised six classes of 89 ninth‐graders and 40 10th/11th‐graders. Each teacher taught two intact sections of the same grade level within a specific science discipline. The treatment for all groups involved teaching a 5–6 week unit that included the science content and NOS. The two intact groups learned about same content; the only difference was the context of NOS instruction (integrated or non‐integrated). An open‐ended questionnaire, followed by interviews, was used to assess change in participants’ views. Results showed improvement in students’ NOS views regardless of whether NOS instruction was embedded within the content. Therefore, it was not possible to make claims about whether one instructional context is more effective than another in general terms. 相似文献
504.
This study assessed the effectiveness of the systematic modeling teaching strategy on integrated science process skills and formal reasoning ability. Urban middle school students received a three-month process skill intervention treatment from teachers trained in either the use of systematic modeling or the learning-cycle model. A third, control group received traditional science instruction. The analysis of data revealed that (a) students receiving modeled instruction demonstrated a significant difference in their achievement of process skills when compared to either of the control groups. (b) Students taught by teachers who had received special process skill and strategy training demonstrated a significant difference in their process skill achievement when compared with the control group. (c) Students at different cognitive reasoning levels demonstrated significantly different process skill ability. 相似文献
505.
Norman E. Walker 《Clearing house (Menasha, Wis.)》2013,86(8):490-492
506.
Two experiments examined the effects of nonreinforced flavor exposure on the strength of a conditioned taste aversion. Rats were conditioned by pairing maple flavor with LiC1. Prior to or subsequent to this pairing, some animals received nonreinforced exposure to either maple or saccharin. In separate subjects, preference for maple was tested 1 or 21 days after the last training episode. In the first experiment, the nonreinforced stimulus exposure occurred before conditioning (latent inhibition, or LI, procedure); in the second experiment, the nonreinforced exposure occurred after conditioning (extinction, or EXT, training). In both experiments, nonreinforced exposure to maple or saccharin reduced the magnitude of a conditioned maple aversion when testing occurred soon after conditioning. When testing was delayed, however, the attenuation due to nonreinforced saccharin exposure dissipated, both with the LI procedure and with EXT. In contrast, the nonreinforced exposure to maple was found to attenuate conditioned reactions at both short and long retention intervals. The release from generalized LI and spontaneous recovery following generalized EXT training are discussed in terms of retrieval processing. The possibility that the same mechanism may underlie LI and EXT is considered. 相似文献
507.