Are first graders' arithmetic skills related to the quality of mathematics textbooks? A study on students’ use of arithmetic principles     

《Learning and Instruction》2021

A major goal of the first years of schooling is students' development from using counting strategies to using calculation strategies – or even recall – to solve addition or subtraction problems. It requires the perception and usage of arithmetic principles. Although the continued use of counting strategies is problematic for further learning progress, they are frequently used by many students beyond Grade 1. While learning resources possibly play a role in students' development in this field, our knowledge about their impact is limited. In this study we investigated the presented learning opportunities of four different textbooks regarding arithmetic principles in Grade 1, and subsequently the relation to first graders' strategy use by analyzing a one-year dataset of 1614 students from 86 classes. The analyses show differences in the textbooks' quality concerning arithmetic principles as well as a considerable connection to students' strategy use at the end of Grade 1.  相似文献   

Aged-based differences in spatial language skills from 6 to 10 years: Relations with spatial and mathematics skills     

《Learning and Instruction》2021

Spatial language is the language of spatial concepts and spatial relationships. Prior research has demonstrated an association between spatial language and spatial thinking in pre-school children. However, there is limited evidence exploring age-based differences in spatial language in older childhood. This cross-sectional study has three main aims. First, we present a novel spatial language measure and show differences in spatial language performance across age groups from 6 to 10 years (N = 155). Second, having demonstrated that our measure is sensitive to age-based progression, we use regression analyses to determine relations between spatial language and performance on a range of spatial tasks (r²:1.2%–9.0%). Third, we investigate the relations between spatial language and different mathematics skills (r²:0.2%–15.4%) and propose mechanisms that may explain these associations. We discuss how these findings lay a foundation for future spatial language interventions as a novel tool which may lead to educational improvements in mathematics.  相似文献   

高校学术论文量化评估工作及其数学模型   总被引：6，自引：0，他引：6  

王建阳 《情报科学》2004,22(1):63-65,70

学术论文的量化评估是高校科研量化的工作重点.本文在分析了高校学术论文评估的指标因素与权重的基础上提出了量化评估的数学模型.  相似文献   

"开关"问题的数值方法及在资料变分同化中的应用     

孙亮 《科技通报》2003,19(5):417-420

提出了“开关”问题的一类微分方程模型，方程在临界值处是不连续的，用经典的数值方法求解此类问题时会出现很大的数值误差，数值精度降到了一阶，详细研究了这类问题，提出用Hermite插值方法确定开关时刻，分段求解连续的微分方程的间断装配方法，使原有的数值方法恢复其数值精度，将此方法应用到资料变分同化中，获得了高精度的数值解。  相似文献   

谈小学生创造性思维能力的培养   总被引：1，自引：0，他引：1  

杨起群  刘良黔 《桂林师范高等专科学校学报》2005,19(2):131-134

根据小学生的思维特点，并结合小学数学教学的特点，阐述如何培养学生的观察能力、归纳能力、类比能力、发散思维能力、数学审美能力。鼓励学生不拘一格大胆猜想，从而达到培养学生的创造性思维能力。  相似文献   

数学阅读教学中师生的角色定位及策略     

李亚兰 《湖北广播电视大学学报》2007,27(10):108-109

数学阅读在数学教育中的重要性已经得到数学教育界的共识,如何才能提高学生的数学阅读能力,如何才能使数学阅读教学提高效率,这是困扰教育者的难题。本文就数学阅读的特殊性,数学阅读教学中师生的角色定位以及课堂教学对策等问题进行了论述。  相似文献   

建构生活数学和书本数学的桥梁     

倪珺 《中国教育研究与创新》2006,3(12):106-107

课堂教学的目的在于让每一个学生从他们各自的现实数学世界出发与课本内容互相作用，构建自己的数学知识。应当随时随地的利用身边的素材建构为学生学习有意义的数学。从“生活经验”出发，而不是从“生活情境”出发。建构生活与数学之间的桥梁。要善于借助现实的、有趣的内容沟通生活数学与书本数学的联系，在较高的层次予以整合。最终能上升到“数学模型”——书本数学。  相似文献   

意志力、潜意识脑理论在程序设计课程的应用研究与实践     

丁鹏  张静  贾月乐  刘忠慧 《教育教学论坛》2019,(21):129-130

本文将心理学和脑科学的两个新理论——意志力、意识脑和潜意识脑的最新研究成果运用到计算机程序设计课程的教学中。根据这些理论对人本性的解释,制定新的授课模式,即"极致精简、以练代讲"的授课模式。该模式以学生学习情况为基础,动态分配教学学时,极致精简讲授内容,大量增加课堂练习和思维性训练,分组"以练代讲",进行"计算思维"训练。通过二学年的教学实践,对比未采用此方法教学的同专业班级,该方法取得了非常好的教学效果。  相似文献   

浅谈数学解题的策略性     

周晓东 《金华职业技术学院学报》2002,2(4):67-69

数学解题要掌握以下几种策略：一是语言转化策略，是理解题意的根基；二是进退并举策略，是学会分析的招式；三是辩证思维策略，是逻辑推理的纽带；四是数形结合策略，是观察推断的工具；五是联想迁移策略，是归纳猜想的桥梁。  相似文献   

Feature Solution in the Process of Parameterizing Port Model     

彭禹  郝志勇  孙秀永  刘东航  付鲁华 《天津大学学报(英文版)》2004,10(2):118-125

Aimed at attaining to an integrated and effective pattern to guide the port design process, this paper pats forward a new conception of feature solution, which is based on the parameterized feature modeling. With this solution, the overall port pre-design process can be conducted in a virtual pattern. Moreover, to evaluate the advantages of the new design pattern, an application of port system has been involved in this paper; and in the process of application a computational fluid dynamic analysis is concerned. An ideal effect of cleanness, high efficiency and high precision has been achieved.  相似文献