一种图解空间角度问题的简便方法

给出了图解空间直线与平面、平面与平面角度问题的一种方法,该方法可使作图过程简化,并且容易掌握。     

两个三角形不等式猜想的证明

统一证明涉及三角形内部一动点的两个猜想不等式,比较其与已知不等式的强弱关系,然后提出五个相关的猜想．最后运用已知不等式简证Erdos-Mordell不等式．     

分块矩阵行列式的一些结果

借助准三角形分块矩阵的行列式值的结果及分块矩阵的广义消元法变换，不改变其行列式值的性质，证明了分块矩阵的行列式的几个更一般结果，并列举了两个应用实例。     

Models of influence on mathematics instructional coaches

In our study, we examine the factors influencing the implementation of a mathematics coaching initiative at four high schools including the assets an instructional coach brings to the position and the challenges unique to each school. In our case study we include data collected in individual interviews with instructional coaches, focus groups with Algebra I teams, and coaching logs. Four models of coaching behavior emerged from the data collected in the study: coach as facilitator, coach as mediator, coach as dictator, and coach as victim. No role was associated exclusively with any particular instructional coach. However, which role the coach assumed hinged on one or more factors: the coach’s leadership style, the context in which the coach served, and the dynamics of the situation.     

Full time adult credential students’ instructional preferences at California State University,Long Beach: pedagogy or andragogy?

This study investigated the instructional preferences of full time adult credential students after they took a live course called Principles of Adult Education at California State University, Long Beach, (CSULB) in the fall semester of 2002. These full time adult credential students had been working on their adult teaching credentials to meet the competencies specified by the California Commission on Teacher Credentialing. The course introduced students to Andragogy developed by Malcolm Knowles out of the andragogical model, developed by Lindeman (1926). The study used Principles of Adult Learning Scales (PALS), advanced by Gary Conti in 1983 to measure instructional preferences. Data were collected from 30 (100% of 30) full time adult credential students enrolled in a live course to, determine their instructional preferences of helping adults learn. The results of the study showed in most cases these adult learning professionals taught adult students andragogically: in some cases they taught adult students pedagogically.     

教育信息化与教育信息处理

该文讨论了教育信息化的内容和意义,并基于教育信息化的要求,在教育过程信息分析的基础上,讨论了教育过程中的信息处理和教育信息处理在教育信息化中的作用及意义。     

Validation of an assessment centre process for the selection of school leaders in Chile

This study seeks to develop and validate an Assessment Centre (AC) tool for the evaluation and selection of school leaders, focusing on the identification of competencies that influence teaching and learning outcomes. International research supports the creation of Assessment Centres to select candidates for these roles, due to their superior predictive capacity over traditional methods. In this research, a model composed of four face-to-face instruments (an interview to assess competencies, a human resources exercise, a class observation exercise, and a strategic analysis exercise) was designed and validated which simulated the key tasks of a school principal. To establish the desired performance outcomes, three competencies and 15 indicators were selected, based on international and local standards. The analysis of performance results was obtained from a sample of 164 participants made up of teachers, school leaders and principals. The results suggest positive evidence for construct validity, concurrent criteria validity, and reliability between evaluators. Moreover, the data obtained from a sub-sample of principals, with three or more years of experience in their role, allowed for the association of their AC scores with the results of their school organisations, as measured by the National System for the Measurement of Educational Quality in the years 2013 and 2016.     

线束交比的几何意义和三角形面积比方法

本文通过对线束比和三角形面积比方法较为简洁地证明蝴蝶定理的分析,找出了高等几何与初等几何之间的一种联系,为解决一类几何问题提供了有效的方法。     

教学设计的概念及其对学科教学的影响

本文探讨了教学设计的发展、概念、特点以及对学科教学工作的影响,其成果有利于学科教学工作人员将教学设计理论运用到具体的课程中,提高课堂的教学效果。     

Instructional leadership in Malaysia: a review of the contemporary literature*

This article provides a review of the contemporary instructional leadership research base in Malaysia. The core aim of this review is to assess the recent knowledge base on instructional leadership in Malaysia and to evaluate its current contribution to the existing international literature. The article explores a range of published material that has focused explicitly on instructional leadership and instructional leadership practices in Malaysia, including that written in Bahasa Malaysia. The article outlines the findings from the review and highlights certain strengths and limitations. The article concludes by identifying areas for further enquiry and investigation.