化学教学设计与实施中如何落实三维目标的融合统一

基础教育新一轮化学课程的改革确立了“知识与技能”、“过程与方法”、“情感态度与价值观”的三维课程目标.3个维度的目标彼此渗透,相互融合,统一于学生的成长发展之中.从转变观念,理解内涵,理清关系;确立恰当的知识与技能目标;经历过程,强化体验,促进三维目标的融合;改变评价方式,促进三维目标的实现诸方面论述了在化学教学设计与实施中实现三维目标统一的举措.     

重视主体体验落实情感态度与价值观目标——以“富集在海水中的元素——氯”的导课为例

从三维目标中情感态度与价值观目标的落实问题出发,以2个具有代表性的导课案例,从学生“主体体验”的角度探讨了如何在化学课堂中有效地实现情感态度与价值观目标:从理念上重视,在教学设计中体现,在教学过程中落实.     

科学渗透情感态度与价值观目标

正确理解初中化学教学中的“情感态度与价值观”目标,必须把握其内容、特点以及与学科德育目标的联系和区别;全面达成情感态度与价值观目标,必须优化教学过程并准确设计、科学渗透课时情感态度与价值观目标。     

"情感态度与价值观"目标在中学化学教学中落实的建议

"情感态度与价值观"教学目标是新课程提出的三维教学目标之一.分析了目前中学化学教学中对"情感态度与价值观"目标实施所存在的一些问题,提出了"情感态度与价值观"目标落实策略的建议.     

中学化学情感态度价值观教学目标实施的影响因素分析

情感态度价值观教学目标是新课程提出的三维教学目标之一。本文通过质的研究方法,分析出影响中学化学教学中情感态度价值观教学目标实施的因素,并提出一些促进中学化学情感态度价值观教学目标有效落实的策略。     

化学教学目标设计的反思与对策

教学目标的设计是教学设计的核心内容,教学目标一经确定,就成为教师选择教学策略、安排和组织学习活动以及实施教学评价的重要依据。本文以教学设计的有关理论为指导,结合当前化学教学目标设计中存在的一些现象,对如何理解化学三维目标,依据什么来设计目标,如何设计目标才能更好地发挥对教学过程的导向作用进行了分析和探讨。     

高中化学教学中情感态度与价值观目标落实情况的调查

通过调查分析了当前高中化学教学中情感态度与价值观目标的教学现状：包括教师的理解和认识,落实的途径和方法等。     

中学化学教科书中反思活动的设计

培养学生的反思能力是化学课程的重要目标。化学教科书的编写应重视反思活动的设计,通过问题或栏目引导学生从知识技能、过程方法、情感态度价值观等方面开展自我反思,促进学生对知识的深刻理解和科学素养的全面发展。     

我国中学化学课程中情感态度与价值观目标内涵的历史演变

情感态度与价值观目标在本次新课程改革中得到前所未有的重视。通过对我国历次化学课程标准或教学大纲中情感态度与价值观目标的历史梳理,分析出其变化的特征,以便帮助教师正确认识情感态度与价值观目标的内涵。     

从孤立到整合:化学教学三维目标的全面落实

新课程下三维目标的理念已深入人心,但是在实际的教学过程中往往存在对教学目标的孤立性认识而非整合性认识,这不仅有违教学目标的基本内涵,同时不利于学生科学素养的全面发展和教学目标的科学落实。以“知识与技能”为基础去建构、发展“过程与方法”、“情感态度与价值观”2个维度的教学目标是实现教学目标整合的重要方法。分析不同教学内容的教育价值,能够有的放矢地全面体现化学教学目标。     

Journal of Computer-Aided Molecular Design incorporating Perspectives in Drug Discovery and Design

Instructions for authors

Journal of Computer-Aided Molecular Design incorporating Perspectives in Drug Discovery and Design     

BOPPPS教学模式的教学设计要素分析及案例设计*

BOPPPS教学模式与课堂的5W教学要素有紧密的联系,它强调以学生为中心,将课堂6个教学模块进行分解。研究探讨了BOPPPS教学模式的教学设计要素涵义及应用策略,结合有机化学课程的双分子亲核取代机理教学设计及其教学效果,说明该模式的具体实施之策。     

Design and applications of coupled SPE-CE

CE suffers from an inherent low concentration sensitivity. Analyte detection limits can be improved by combining CE with SPE. This paper presents an overview of coupled SPE-CE systems that have been reported in literature. Attention is paid to fundamental aspects of coupling SPE and CE, as well as to important SPE requirements. Interfaces for inline and online coupling with CE are critically discussed, and their mode of operation is outlined. Advantages and limitations of the interfaces are discussed and typical examples are selected. Finally, some future developments are discussed.     

Design and fabrication of gecko-inspired adhesives

Recently, there has been significant interest in developing dry adhesives mimicking the gecko adhesive system, which offers several advantages compared to conventional pressure-sensitive adhesives. Specifically, gecko adhesive pads have anisotropic adhesion properties; the adhesive pads (spatulae) stick strongly when sheared in one direction but are non-adherent when sheared in the opposite direction. This anisotropy property is attributed to the complex topography of the array of fine tilted and curved columnar structures (setae) that bear the spatulae. In this study, we present an easy, scalable method, relying on conventional and unconventional techniques, to incorporate tilt in the fabrication of synthetic polymer-based dry adhesives mimicking the gecko adhesive system, which provides anisotropic adhesion properties. We measured the anisotropic adhesion and friction properties of samples with various tilt angles to test the validity of a nanoscale tape-peeling model of spatular function. Consistent with the peel zone model, samples with lower tilt angles yielded larger adhesion forces. The tribological properties of the synthetic arrays were highly anisotropic, reminiscent of the frictional adhesion behavior of gecko setal arrays. When a 60° tilt sample was actuated in the gripping direction, a static adhesion strength of ~1.4 N/cm(2) and a static friction strength of ~5.4 N/cm(2) were obtained. In contrast, when the dry adhesive was actuated in the releasing direction, we measured an initial repulsive normal force and negligible friction.     

计算机与化学化学系列网络课程设计与制作

围绕化学系列课程教学特点和要求设计制作化学系列网络课程。充分运用各种多媒体元素,将教学内容与教学资源、考试自测、交流互动、工具帮助各功能模块有机结合,为学习者建构一个舒适的学习情境。     

Design and synthesis of self-healing polymers

Self-healing polymers represent a class of materials with built-in capability of rehabilitating damages. The topic has attracted increasingly more attention in the past few years. The on-going research activities clearly indicate that self-healing polymeric materials turn out to be a typical multi-disciplinary area concerning polymer chemistry, organic synthesis, polymer physics, theoretical and experimental mechanics, processing, composites manufacturing, interfacial engineering, etc. The present article briefly reviews the achievements of the groups worldwide, and particularly the work carried out in our own laboratory towards strength recovery for structural applications. To ensure sufficient coverage, thermoplastics and thermosetting polymers, extrinsic and intrinsic self-healing, autonomic and non-autonomic healing approaches are included. Innovative routes that correlate materials chemistry to full capacity restoration are discussed for further development from bioinspired toward biomimetic repair.     

Design and characterization of ferrocene-peptide-oligoaniline conjugates

Ferrocene-peptide-oligoaniline conjugates were designed by the introduction of two ferrocene-peptide conjugates into a π-conjugated phenylenediamine spacer to demonstrate the luminescent switching by changing the redox states of the π-conjugated phenylenediamine moiety, wherein the self-aggregation of the π-conjugated moiety was achieved in a higher concentration to induce the chirality organization with a red shift of the maximum emission wavelength.     

Design and synthesis of pyrrolidine-containing sphingomimetics

Based on the structures of natural sphingolipids, we designed heterocyclic sphingoid base mimetics in which the conformational restriction is introduced by incorporation of a pyrrolidine moiety between the 2-amino group and the C-4 carbon atom of the sphingoid base. Our synthesis features a regioselective nucleophilic ring opening of a cyclic sulfate with cyanide and subsequent manipulation of the cyanide group. During the course of synthesis, Staudinger-type reductive cyclization of 1,3-azido carboxylic acid and 1,4-azido alcohol offers a direct route to the five-membered pyrrolidone and pyrrolidine products. The preliminary biological evaluation indicates that the designed pyrrolidine analog is biologically active and its cytotoxic effect is associated with the induction of apoptosis.