论数学变式训练如何培养学习能力

如何让学生轻松学习,牢固掌握知识,关键是提高学习能力,这需要教师对教学内容精心设计。通过工作实践,笔者认为在课堂教学中要精讲精练,从不同的角度呈现概念背景和例题方式,具体表现为概念性变式训练和过程性变式训练,意在通过数学变式训练渗透对学生学习能力的培养,真正达到减轻过重学习负担的目的。     

论《黑暗中的笑声》的电影叙事策略

从《黑暗中的笑声》所使用的电影背景、电影画面和电影手法等特点出发,深入发掘小说的电影叙事策略,突出小说通过电影叙事所达到的"游戏性"、"娱乐性"效果,论证纳博科夫杰出的叙事技巧和独特的艺术理念。     

中美义务教育择校政策的内容、背景与价值研究

在我国义务教育择校政策成为社会关注的焦点之际,本文分析了中关两国关于义务教育择校政策的内容、背景和价值,探讨了两国义务教育择校政策不同的发展轨迹。认为任何一项教育政策都是为了解决某个社会发展阶段产生的特定的教育政策问题而制定的,任何简单的效仿都是无益的,甚至是危险的。择校与否,只是一定历史阶段的产物,只是政策选择的具体表征,不具有普遍性。具有普遍性的是义务教育的基本规定性:公平。     

同样的苦难别样的幸福——《庭院深深》与《简·爱》的对读

通过《庭院深深》与《简·爱》两个文本的对读以及简·爱和含烟两个人物形象的比较,具体地阐释了中西方不同的文化背景和价值观念以及由此形成的不同的爱情现和婚姻观,以期深入透彻地理解和把握中西文化的不同,更好地促进中西文化的交流。     

灌输理论在思想政治教育中运用的背景支撑及其发展

列宁对灌输理论的形成具有重大理论贡献;灌输理论实质上是一种关于无产阶级革命理论与革命实践关系的理性认识．是思想政治教育的理念与原则;思想政治教育的本质属性和内在规律、当前国内外环境的变化以及社会主义现代化建设的实践等因素是灌输理论在思想政治教育中发挥作用的背景因素,为灌输理论在思想政治教育中的运用提供了坚实的支撑力量。面对新形势,我们的思想政治教育工作必须在继承和发扬优良传统的基础上,通过对灌输理论的内容、形式、主体和客体等方面的系统丰富和发展,促使思想政治教育的创新,提高思想政治教育的实效性。     

农田土壤酶活性生态背景的灰色分析

东北高寒地区麦田土壤酶活性具有明显的季节变化，其中纤维素酶和转化酶的最大值在7月份，脲酶和过氧化氢酶的最大值是在8月份，而脱氢酶的最小低谷值在7月份，用灰色关联分析找出了影响土壤酶活性总体的主要因素为弹尾类动物、活性有机质、土壤pH值和含水量。各种土壤酶分别和4种主要因素之间建立5个灰色数学模型[GM（1，5）]，除脲酶外其它四个数学模型的平均相对误差很小，模型拟合得很好。     

浅谈“互联网+”背景下开放教育中的英语混合式教学模式的探究

“互联网+”的背景下,开放教育的各教学环节正逐渐向信息化发展,教学环境也出现了剧烈的变化。在这样的背景下,大学本科的教学过程逐渐过渡到了传统教育模式和现代信息化共存的局面,要想进一步开展有效的英语教学,就需要采用自主学习和学生之间协作学习相结合的混合教学模式,以确保学习的有效性。在“互联网+”的背景下,综合应用多种教学模式,进行混合式的教学过程,例如利用微课、慕课和翻转课堂等方式进行教学,可以有效地实现混合式的英语教学过程,在提高学生自主学习能力的同时,强化学生之间的协作学习内容,进而能够获得更好的英语课堂教学效果,有着重要的现实意义。     

根的凝固情的洇散——试析东西乡土小说环境设置的合理性和艺术性

东西爱把其小说的环境设置在乡村之间,以乡土为背景创作出了一批优秀的作品,这正是作者扎根于故乡土壤获得的精神凝固,是作者对乡土情感的洇散。这种凝固和洇散,能把小说中的虚幻世界构建成一个真实的世界,成为小说中物质背景与精神背景的粘合济,为作品增添了独特的个性和艺术魅力。     

Length-based vehicle classification in multi-lane traffic flow

For the realtime classification of moving vehicles in the multi-lane traffic video sequences, a length-based method is proposed. To extract the moving regions of interest, the difference image between the updated background and current frame is obtained by using background subtraction, and then an edge-based shadow removal algorithm is implemented. Moreover, a thresholding segmentation method for the region detection of moving vehicle based on location search is developed. At the estimation stage, a registration line is set up in the detection area, then the vehicle length is estimated with the horizontal projection technique as soon as the vehicle leaves the registration line. Lastly, the vehicle is classified according to its length and the classification threshold. The proposed method is different from traditional methods that require complex camera calibrations. It calculates the pixel-based vehicle length by using uncalibrated traffic video sequences at lower computational cost. Furthermore, only one registration line is set up, which has high flexibility. Experimental results of three traffic video sequences show that the classification accuracies for the large and small vehicles are 97.1% and 96.7% respectively, which demonstrates the effectiveness of the proposed method.     

On the effects of motivation on reading performance growth in secondary school

This research aimed at identifying unique effects of reading motivation on reading performance when controlling for cognitive skills, familial, and demographic background. We drew upon a longitudinal sample of N = 1508 secondary school students from 5th to 8th grade. Two types of intrinsic reading motivation (reading enjoyment, reading for interest), one type of extrinsic reading motivation (competition), and reading self-concept were measured by self-report questionnaires. Cognitive skills (reasoning, decoding speed) and reading performance were assessed using standardized tests and background variables were collected using student and parent questionnaires. Applying latent growth curve modeling, positive unique effects of reading enjoyment and reading self-concept and a negative unique effect of competition on the initial level of reading performance were recorded. Moreover, a positive unique effect of reading for interest on reading performance growth was recorded. One may conclude that enhancing students’ interest might be fruitful in terms of nurturing reading performance.