电大生《经济数学基础》课程学习困难的成因分析

本文对电大生《经济数学基础》课程学习困难的成因进行了分析,并对教师在该课程教学中要注意的问题提出了几点建议。     

解题思路受阻四例评析

解题思路受阻是常有的事,不能一受阻就从头再来,教师应重视引导学生钻研,探索,创新以走出困境.     

求解法在数字电路课程教学中的应用

触发器是时序逻辑电路的基本单元,在数字电路系统中具有十分重要的地位。文章提出一种“问题求解教学法”———即先引出问题,寻求问题的解决方法,最终圆满解决问题。教学实践表明,该教学法对激发学生的学习兴趣,引导学生独立思考,提高其创新思维能力,加深对触发器理解和记忆,均有很好的积极意义。     

A model for budget allocation in multi-unit libraries

This article addresses the problem of allocating funds for acquisition of periodicals among several interrelated units of an academic library. The paper outlines an optimization model for the problem with an objective of maximizing the usage of periodicals over all library units subject to a single collections budget. It further gives an insight into a decision support system in MS Excel based on this model, and it illustrates its successful application to the Library of the University of Illinois at Urbana-Champaign.     

解决题海战术的金钥匙--浅谈玻利亚的解题思想

应试教育严重影响了素质教育的进程。推广和应用玻利亚的解题思想能帮助学生和教师摆脱“题海战术”的困惑。     

The role of a digital engineering platform in appropriating the creation of new work-related mind-set and organisational discourse in a large multi-national company

This paper reports on a case study involving a strategic and innovative approach to creation of an in-house multifaceted digital engineering platform (the DEP) in overcoming a number of organisational problems at a multinational engineering company. The DEP was to be used strategically for simplifying the operational complexity and to create and appropriate new work-related mind-set and new organisational discourse to achieve homogenous working across the organisation, which is a huge challenge. The need for this system emerged from the need to resolve many organisational services related problems that carried phenomenal amount of processes, health and safety risks and to regulate, and, control the running of engineering project. Research data were collected using a longitudinal case study approach over a period of six months. In order to make sense of how the DEP helped the organisation, the study used certain elements of Extended Structuration Theory as a lens to assess the case study. This research discovered that the DEP succeeded in creating and appropriating work-related mind-set and organisational discourse. It also had real influence on working processes and employees at all levels while encouraging transparency, responsiveness, agility and accountability. It continues to help the organisation to govern, manage and maintain good standard of service but many barriers still remain.     

韦氏静电感应起电机故障分析及处理

韦氏静电感应起电机是高校及中学物理静电实验中的常用仪器，实验中常受诸多因素影响不能起电。本文阐明韦氏静电感应起电机的原理，分析故障原因并给出处理方法。     

Mathematical Modeling in the Primary School: Children's Construction of a Consumer Guide

This paper examines 6th grade children's local conceptual development and mathematization processes as they worked a comprehensive mathematical modeling problem (creating a consumer guide for deciding the best snack chip) over several class periods. The children and their teachers were participating in a 3-year longitudinal teaching experiment in which sequences of mathematical modeling problems were implemented from the 5th grade (10 years of age) though to the 7th grade. In contrast to traditional problem solving, mathematical modeling requires children to generate and develop their own mathematical ideas and processes, and to form systems of relationships that are generalizable and reusable. Reported here is a detailed analysis of the iterative cycles of development of one group of children as they worked the problem, followed by a summary of the mathematization processes displayed by all groups. Children's critical reflections on their models are also reported. The results show how children can independently develop constructs and processes through meaningful problem solving. Children's development included creating systems for operationally defining constructs; selecting, categorizing, and ranking factors; quantifying quantitative and qualitative data; and transforming quantities.     

高职教数学教学改革探讨

当今 ,国际数学教育改革提倡的是“问题解决” ,高职教人才培养的定位是“动手能力”。在这双重的背景和要求下 ,高等职业技术教育的数学教学也必须根据本学科的特点 ,在教学中努力显现自己的“动手能力”     

开放型问题的解法

开放型问题有利于培养学生的思维能力和创新能力,作者就三种类型的开放型问题作简单归纳。