初中化学课堂中“概念图”的运用路径

化学学科是一门讲求逻辑、理论、实践以及思维的学科,运用“概念图”实施教学是匹配《义务教育化学课程标准(2022版)》要求的,更是符合素质教育深入推进要求的.初中化学课堂中凭借着“概念图”的知识表征功能,初中化学教师可以快速高效地将化学学科的一些概念、理论运用“概念图”连线以及“概念图”关系解构而传递给学生.文章据此就初中化学课堂中“概念图”的运用价值和运用原则作为切入点,概述了初中化学课堂中“概念图”的运用现状,结合教学实例探索了初中化学课堂中“概念图”的运用路径.

“概念图”教学法在“森林经理学”课程教学中的应用——以北京林业大学为例

“概念图”作为一种图形化的认知工具,能有效辅助学生识别关键问题,加深学生对知识的理解并构建相应的知识体系;能使教师针对学生掌握的情况实时调整教学进程,提高教学效率。针对“森林经理学”课程教学中存在的“教学方法单一,教师难以及时掌握学生的学习动态;学生缺少学习的主动性,难以构建完整的知识体系”等问题,以课程核心章节“法正林”为例,探讨了“概念图”教学法在“森林经理学”课程教学中的应用途径:首先,学生针对课程核心章节编制概念图,体现学生的主体地位;其次,教师引导学生自主完成概念图的构建,培养学生独立思考的能力;最后,通过小组协作进一步完善概念图,培养学生的探究能力。“概念图”教学法在“森林经理学”课程教学中应用后,激发了学生的学习兴趣、培养了学生开展探究式学习的能力、完善了学生的知识结构,促进了教学效果的提升。

通用学术英语课程中的“概念图”教学法探究

本文结合通用学术英语课程的特点,阐述了“概念图”教学法的相关理论知识、教学步骤和有效性等问题。问卷调查的结果揭示了“概念图”教学法能够提高通用学术英语的实际教学效果,包括提高学生思维能力和辅助阅读理解等方面。

“概念图”在高中化学教学中的应用研究

“概念图”是一种现代化高中化学教学中的新型教学方式与教学手段,能够有效地帮助学生,在面对更加抽象、难懂的化学知识、概念时能够更好地化解,而化学概念作为教师教学、学生学习的基础,不仅仅是学会学习中最为重要的一个部分,还是学生学习中的一个重难点部分。因此,为了能够帮助学生更好地将高中化学中错综复杂的化学概念进行整理与连接,帮助学生构建一个更加清晰的化学知识网络图,借助概念图的教学方式来进行化学的辅助性教学手段势在必行。因此,在高中化学的教学实践中,要加强对“概念图”教学方法的运用,进行不断地探究与分析。

运用“概念图法”培养高中生数学抽象素养的教学探索

本文基于数学抽象素养的高中数学“概念图法”教学策略进行分析,介绍“概念图法”的基本概念,探讨基于“概念图法”培养高中生数学抽象素养的意义,即有利于激发学生的数学学习兴趣,有利于提升学生思维能力和自身的反思能力,并通过教学设计、新课讲授、数学复习等方面提出“概念图法”教学方法在高中数学教学中的应用,以期帮助学生逐渐理解抽象的数学知识,提高课堂的教学质量。

“概念图”在初中数学解题教学中的应用

数学学科作为我国教育学科的一门重要课程,对于学生的未来发展有着至关重要的作用,数学学科的成绩高低也影响着学生的整体成绩,因此,教师越来越注重数学课堂教学效率和质量,采用现在比较流行的"概念图"教学方法进行初中数学教学,为提高学生的综合素质能力和数学逻辑思维提供重要的保障。

Method of creating ontologies for Prolog clauses

A method is proposed to build an ontology in the form of a conceptual graph for Prolog clauses, so that the Prolog reasoning engine can differentiate clauses semantically to some degree. The concept model of a clauses ontology is composed of predicate parameters and head sub-goals, and these sub-goals appear in the head of the rule body and precede any predicate calls. In the proposed method, a Prolog program can be transformed into a Prolog ＋ CG program that includes a clauses ontology. Some experiments show that, with a clauses ontology, some clauses which do not match current goals are not considered early enough, and, therefore, the size of the goal solution tree may be reduced. By the capability of conceptual graph, a clauses ontology makes the semantics of the Prolog program more clear and readable, and sometimes it speeds up the solution process obviously.

Optimal path finding algorithms based on SLSD road network model

A solution to compute the optimal path based on a single-line-single-directional（SLSD）road network model is proposed.Unlike the traditional road network model,in the SLSD conceptual model,being single-directional and single-line style,a road is no longer a linkage of road nodes but abstracted as a network node.Similarly,a road node is abstracted as the linkage of two ordered single-directional roads.This model can describe turn restrictions,circular roads,and other real scenarios usually described using a super-graph.Then a computing framework for optimal path finding（OPF）is presented.It is proved that classical Dijkstra and A algorithms can be directly used for OPF computing of any real-world road networks by transferring a super-graph to an SLSD network.Finally,using Singapore road network data,the proposed conceptual model and its corresponding optimal path finding algorithms are validated using a two-step optimal path finding algorithm with a pre-computing strategy based on the SLSD road network.

On the Conceptual Shift and Collocation Between Concreteness and Abstractness——Analysis of The Mill by a New Poet in China

This is a poem review which analyzes The Mill that was written by a new poet in China, looking at it from the conceptual perspective. The conceptual shift and collocation between concreteness and abstractness enable her poems to carry both linguistic power and emotional strength; the conceptual images created by her abstract thinking and unique perception make her poems achieve originality and readability; her conceptual self built by the use of first person pronouns is actually not that of a person but that of a personified mule who was indignant about its heavy workload yet unable to speak against its predestined destiny. Although suffering from brain paralysis, the poet is shown by this review to be a sensible manipulator of words, which reveal the unique beauty in her language and show the suppressed sadness in her heart.

Design of Conceptual Model in Digital Map Database

The components of map information are analyzed theoretically in this paper,and the map information includes mainly the spatial information,attributive information and temporal characteristics information.Then the digital map entity is defined according to construction characteristics of the map information.Finally,on the basis of the analyses of the construction characteristics of digital map entity and present conceptual model of digital map database,an abstracted conceptual model of digital map database is presented.And the Normal Form theory of relational database is discussed particularly.

Sustainable Design of Turbofan Engine： A Computer-Aided Design and Finite Element Analysis

A compressive design and analysis of a turbofan engine is presented in this paper. The components of jet engine have been analyzed based on mechanical design concept. An attempt has been to select materials based on sustainability and green design considerations. The energy content （e） of the materials has been one of the parameters for material selection. The choice of material has a substantial impact on cost, manuthcturing process, and the life cycle efficiency. All components nose cone, fan blade, inlet shaft, including compressor has been solid modeled using Siemens NX 11.0 CAD software. The finite element analysis of every component was performed and found safe. A tolerance analysis was performed before assembly of the turbofan engine. A numerical analysis was completed on blade and inlet geometries to determine a more efficient turbofan engine. Thermal analysis was executed oi1 the cone and suitable corrections were made. Finally, the cost and the total energy were estimated to show how much energy is needed to manufacture a turbofan jet engine.

The comparison study of Chinese and American secondary school students’knowledge structure—an experimental research based on concept map assessment technique

A concept map is a schematic device for representing a set of concept meanings embedded in a framework of propositions.It can be used to evaluate students’knowledge structure.This article introduces the comparative study of Chinese and American secondary school students’knowledge structure.They are compared quantitatively and qualitatively in terms of mean score,individual proposition scores,proposition choice and map structure.The results indicate that students’knowledge structures in the two countries are remarkably different.Compared with American students,Chinese students’ability to take an exam is stronger and their mean score is higher.However,Chinese students need to improve their general knowledge and creativity although their basic knowledge is solid and they are better in mastering discipline knowledge and knowledge application.

The Differential Mode of Criminalization in Traditional China

Drawing upon a concept developed by Fei Xiaotong, this article offers a preliminary theory for conceptualizing the regulation of criminal acts in imperial China. Centred upon the concept of a ＂differential mode of criminalization,＂ this article argues that the Confucianization of law in traditional China emphasized without ambiguity the implications of the closeness/remoteness in human rela- tionships-the measure of distance conditioned upon the two main loci in everyday life, namely blood and non-blood relationships. This differential mode of criminalization fits into the Confucian imagery of a harmonious society.

Image retrieval based on multi-concept detector and semantic correlation

With the rapid development of future network, there has been an explosive growth in multimedia data such as web images. Hence, an efficient image retrieval engine is necessary. Previous studies concentrate on the single concept image retrieval, which has limited practical usability. In practice, users always employ an Internet image retrieval system with multi-concept queries, but, the related existing approaches are often ineffective because the only combination of single-concept query techniques is adopted. At present semantic concept based multi-concept image retrieval is becoming an urgent issue to be solved. In this paper, a novel Multi-Concept image Retrieval Model(MCRM) based on the multi-concept detector is proposed, which takes a multi-concept as a whole and directly learns each multi-concept from the rearranged multi-concept training set. After the corresponding retrieval algorithm is presented, and the log-likelihood function of predictions is maximized by the gradient descent approach. Besides, semantic correlations among single-concepts and multiconcepts are employed to improve the retrieval performance, in which the semantic correlation probability is estimated with three correlation measures, and the visual evidence is expressed by Bayes theorem, estimated by Support Vector Machine(SVM). Experimental results on Corel and IAPR data sets show that the approach outperforms the state-of-the-arts. Furthermore, the model is beneficial for multi-concept retrieval and difficult retrieval with few relevant images.