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11.
随着我国保险业的快速发展以及保险市场体系的逐步完善,我国的保险业将全部放开并逐步与国际接轨,目前整体管理机制和运营规则己发生了深刻和显著的变化。但现阶段中国保险业面临的问题不仅仅是产权明晰、制度健全、管理科学、经营规范等问题,更重要的是如何树立起保险行业在社会公众中的信用形象,有效地规避信用风险,使保险行业健康的发展。  相似文献   
12.
This study examined pre-service mathematics teachers’ knowledge of history of mathematics and their attitudes and beliefs towards using history of mathematics in mathematics education based on year level in teacher education program and gender. The sample included 1,593 freshman, sophomore, junior, and senior pre-service middle school (grades 4–8) mathematics teachers from nine universities in Turkey. Data were collected through Knowledge of History of Mathematics Test and Attitudes and Beliefs towards the Use of History of Mathematics in Mathematics Education Questionnaire. Results indicate that pre-service teachers have moderate knowledge of history of mathematics and positive attitudes and beliefs towards using history of mathematics. Their knowledge scores increase as the year level in teacher education program advanced. Males’ knowledge scores are significantly higher than females’ scores in the first 2 years. This situation reverses in the last 2 years, but it is not statistically significant. Pre-service teachers have more positive attitudes and availing beliefs towards using history of mathematics as they progress in their teacher education program. Females have greater attitudes and beliefs mean scores than males in each of the years. The results indicate that the teacher education program may have enhanced the pre-service teachers’ knowledge of history of mathematics by related courses. However, the moderate knowledge scores indicate that there is a need for revision of these courses. The pre-service teachers’ positive attitudes and beliefs towards using history of mathematics stress the importance of teacher education program in order to prepare them for implementing this alternative strategy in the future.  相似文献   
13.
This article aims to describe and reflect on the new early childhood teacher education curriculum in Turkey. The new curriculum is part of a large-scale reform agenda to improve education at all levels. The article begins with a brief history of early childhood education and early childhood teacher education in Turkey. Then, the needs for the curriculum revision and major characteristics of the revised curriculum are discussed. The article concludes with brief discussion about the innovations and suggestions for future research dealing with the implementation and effectiveness of the revised curriculum  相似文献   
14.
针对我国煤炭生产中防治水存在的问题,依据多年来从事煤矿水文地质技术和管理的经验,探索出直通式探放水研究理论,并在同煤集团白洞煤业有限责任公司实施,效果很好。就大同煤田地质水文条件来讲,该法推广具有广泛的实用性。  相似文献   
15.
The purposes of this study are to investigate Turkish pre-service middle school mathematics teachers’ ability in conducting valid proofs for statements regarding numbers and algebra in terms of their year of enrollment in a teacher education program, to determine the proof methods used in their valid proofs, and to examine the reasons for their invalid arguments. A proof questionnaire containing three proof statements was administered to 115 pre-service middle school mathematics teachers in a large state university in Ankara, Turkey. The results showed that more than half of the pre-service teachers were able to conduct valid proofs for the given statements. In terms of year levels, it was seen that the seniors were the least successful group in conducting valid proofs for each statement. When pre-service teachers’ valid proofs were analyzed, it was concluded that mathematical induction and direct proof were the mostly used methods for the given statements. When pre-service teachers’ invalid arguments were analyzed, it was seen that “inserting numbers to verify the given statement” and “rewriting the givens in the statement” were the common reasons for stating invalid arguments.  相似文献   
16.
1. Introduction At present, the construction of large-scale reservoirworks has given rise to many large-scale reservoirareas, the stabilization of slopes in these reservoirdistricts will be influenced by water waves. Thecirculating hydraulic loading caused by the waveproduces a great force on the slope, and especiallyforms a vibration wave force on the boundary of water surface and the slope earth, and even breaks the water-soil interface, leading to the excess pore pressurechanging along diff…  相似文献   
17.
根据元极学理论,探讨了宇宙的原始物质时间、空间、宇宙演化及无限有限的关系,并结合现代科学理论,研讨了元极学与现代科学理论在这些方面观点的异同。  相似文献   
18.
In this study, we investigate sixth, seventh, and eighth grade students’ achievement in nonlinear (quadratic or cubic) proportional problems regarding length, area, and volume of enlarged figures. In addition, we examine students’ solution strategies for the problems and obstacles that prevent students from answering the problems correctly by using a mixed method research design. A total of 935 middle school students were given a paper-pencil test and 12 of them were interviewed. Findings indicated that achievement of the participants were low and that students used a limited number of strategies for solving the problems. In addition, these strategies were found to have lacked the argument of the linear proportional and nonlinear proportional relationships among length, area, and volume concepts for most of the participants’ answers. Moreover, analysis revealed that the confusion of linear proportional and nonlinear proportional relationships and misinterpretation of additive and multiplicative relationships were serious obstacles while solving the nonlinear proportional problems related to the area and volume of enlarged figures.  相似文献   
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20.
夹河煤矿创建学习型企业共分为四个阶段:导入理念,形成共识;制定标准,建立模型;更新观念,营造氛围;制定流程,组织实施。所产生的初步效果:一是激活了员工的创造力,二是提高了员工队伍的素质,三是工作创新蔚然成风,四是企业管理步入良性循环。  相似文献   
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