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Education and Information Technologies - This study aimed to determine the effect of web 2.0 technologies supported collaborative problem solving method on students’ achievement and... 相似文献
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The primary objective of this study was to investigate whether a difference in teachers' classroom management styles exists based on years of teaching experience. Data were collected from 282 elementary school teachers employed by 11 elementary schools in Turkey. The Attitudes and Beliefs on Classroom Control Inventory was used to collect the data. Research findings were analyzed to help undergraduate programs and educators revise their program or practicum experiences to enhance preservice teachers' conceptual understanding of classroom management for successful teaching. 相似文献
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A study was conducted on the views of the nature of engineering held by 114 first-year engineering majors; the study built on prior work on views of the nature of science held by students, their instructors, and the general public. Open-coding analysis of responses to a 12-item questionnaire suggested that the participants held tacit beliefs that engineering (1) involves problem solving; (2) is a form of applied science; (3) involves the design of artefacts or systems; (4) is subject to various constraints; and (5) requires teamwork. These beliefs, however, were often unsophisticated, and significant aspects of the field of engineering as described in the literature on engineering practices were missing from the student responses. The results of this study are important because students' beliefs have a strong influence on what they value in a classroom situation, what they attend to in class, and how they choose to study for a course. 相似文献
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The present study examines how changes in the amount of on-screen text will influence student learning from a multimedia instructional
unit on basic concepts of coordinate geometry. The relative effectiveness of two different versions (short-text and whole-text)
of the instructional unit was examined for students who differed in terms of their ability to remember symbolic units, symbolic
systems and symbolic interpretations. A total of 101 seventh graders were randomly assigned to work with either the whole-text
or the short-text version. Student gains were analyzed using pre-test, post-test and retention test scores. Memory ability
was assessed by the sub-tests of the Structure of Intellect-Learning Abilities Test. Results indicated no significant differences
between groups who worked with short-text and whole-text versions. However retention scores of high and low memory groups
who worked with the whole-text version showed significant differences. The whole-text version was observed to favor students
with high memory for symbolic implications. Results suggest that workability of design principles for multimedia instruction
may depend on the nature of the task and characteristics of the learner. 相似文献
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Aysenur Atay Leyla Demir Serap Cuhadar Gulcan Saglam Hulya Unal Saliha Aksun Banu Arslan Asuman Ozkan Recep Sutcu 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(3):376-382
Introduction:
Preanalytical errors, along the process from the beginning of test requests to the admissions of the specimens to the laboratory, cause the rejection of samples. The aim of this study was to better explain the reasons of rejected samples, regarding to their rates in certain test groups in our laboratory.Materials and methods:
This preliminary study was designed on the rejected samples in one-year period, based on the rates and types of inappropriateness. Test requests and blood samples of clinical chemistry, immunoassay, hematology, glycated hemoglobin, coagulation and erythrocyte sedimentation rate test units were evaluated. Types of inappropriateness were evaluated as follows: improperly labelled samples, hemolysed, clotted specimen, insufficient volume of specimen and total request errors.Results:
A total of 5,183,582 test requests from 1,035,743 blood collection tubes were considered. The total rejection rate was 0.65 %. The rejection rate of coagulation group was significantly higher (2.28%) than the other test groups (P < 0.001) including insufficient volume of specimen error rate as 1.38%. Rejection rates of hemolysis, clotted specimen and insufficient volume of sample error were found to be 8%, 24% and 34%, respectively. Total request errors, particularly, for unintelligible requests were 32% of the total for inpatients.Conclusions:
The errors were especially attributable to unintelligible requests of inappropriate test requests, improperly labelled samples for inpatients and blood drawing errors especially due to insufficient volume of specimens in a coagulation test group. Further studies should be performed after corrective and preventive actions to detect a possible decrease in rejecting samples. 相似文献
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