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化学元素观是中学化学学习中的核心观念。化学元素观的建构有利于中学生对物质世界形成有序的认识,有利于中学生形成化学的思维方法。化学元素观建构的基本策略是:(1)在元素概念基础上形成物质的基本分类;(2)在原子结构认识的基础上理解元素是如何形成物质的;(3)在元素周期律学习的基础上形成元素性质研究的基本模型;(4)在专题性学习中建构化学元素观;(5)在元素观指导下的应用性学习中丰富元素观;(6)利用概念图技术帮助化学元素观的建构。 相似文献
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"化学元素观"是中学化学的核心观念之一。阐述了对初中阶段"化学元素观"的理解,分析了"水的组成"在"化学元素观"认识方面的重要价值。以"水的组成"教学为例,就如何围绕"化学元素观"展开深入学习进行了探讨。要发展学生对"化学元素观"的认识,需要立足学科整体的高度,以"化学元素观"为统领,思考具体知识的教学对物质及其化学变化等学科基本问题的渗透与落实,将化学观念教学具体化。 相似文献
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Xianyong Lu 《大学化学》2020,35(8):60-66
针对元素化学课程特点,本文提出重视教案设计、精选国内外化学元素视频、航空航天特色结合找交集、日常生活巧结合、诺贝尔大奖结合讲"课程思政"和紧跟时代的考试试题设计等教学手段,"催化"学生学习化学的兴趣,激发课堂活力。 相似文献
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实验探究与创新意识是《普通高中化学新课程标准》倡导的化学学科核心素养之一,因此,师范院校培养职前教师探究性教学能力对于其职后专业发展具有重要作用。以一位化学教师为研究对象,应用探究性教学水平测评量表--EQUIP表对其实习“氧化还原”3节实录课例进行探究性教学水平评估,并辅以CCITIAS量表进行量化分析,以便探讨研究对象的探究性教学行为表现特点。研究结果如下:(1)研究对象具有一定探究意识,但是探究实践水平还在萌芽期;(2)当重复大学模拟课堂教学经验时,其探究水平表现较高,研究对象的探究理念转化为实际探究性教学的活动策略的能力较强;(3)如果对新授课缺乏经验,则教学行为仍然以知识为中心,但是与学生有一定的积极互动;(4)研究对象对不熟悉的探究教学策略采取回避态度,基本采用传统授课模式。 相似文献
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开放性 探究性 实践性——在化学教学中实施研究性学习的实践 总被引:2,自引:0,他引:2
研究性学习的特点是开放性、探究性、实践性。它们是一个完整的整体,但在课堂教学、实验教学、化学活动等不同形式的化学教学活动中,又有所侧重。我结合新教材的使用,在近年的化学教学中开展研究性学习,主要采取了以下方法。 相似文献
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以“环氧乙烷制备工艺中的绿色化学”为项目式学习主题,以绿色化学概念学习、化学工艺中绿色化学的设计评价等为项目学习活动,探究绿色化学理念的教学设计。培养学生绿色化学意识,提升科学态度和社会责任的化学学科核心素养。 相似文献
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This paper introduces the exploration of inorganic chemistry course teaching based on the energy chemical engineering major. The sense of professional mission of students is inspired, the sense of responsibility for curriculum learning is strengthened, and the curriculum knowledge is integrated into the professional connotation. The teaching of inorganic chemistry course is full of vitality due to some teaching methods including mutual inquiry, case discussion, expanding extracurricular knowledge and communication and online learning. Thus, the learning capability and professionalism of the students are improved. 相似文献
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针对学生在有机化学波谱学学习过程中枯燥、难以形象化的具体情况,介绍一个利用有机波谱在线学习的网站进行游戏化课堂教学的学习活动,以期提升学生在该课程学习中的积极性及学习效果。该教学活动的实施分为课堂和课后进行,主要依托iSpec网站游戏竞赛的答题模式,结合教师课堂教学及学生自主学习,进行相关知识技能的教授,最终提升学生的学习效率与效果。 相似文献
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In this paper, according to the knowledge characteristics of the copper group elements, the reform of the teaching contents and teaching methodology has been analyzed in detail in order to enhance students' interest in learning chemistry, make students master the chemical knowledge, and improve the teaching quality. 相似文献
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依据学习目标、教学活动、评价任务、成绩评定一体化设计的要求,研制中学化学实验试题,通过试题的测评结果开展教学反思,分析实验教学中存在的问题,改进实验教学模式,激活学生从化学实验中认识物质及其变化的好奇心和求知欲,诊断并发展学生的核心素养水平。 相似文献
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In this article, the topic of "chemical principles in warmer pad" is used as an example to illustrate how problem-based learning (PBL) and case learning (CL) are used in the teaching of general chemistry. We take the advantages of PBL to arouse the studying interests of students in the casing learning atmosphere. Moreover, the teacher leads the discussion. By using these two teaching methods properly, students' active learning ability, the skills of analyzing and solving problems, as well as the comprehensive practical ability can be improved. 相似文献
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基于化学教学论课程来研究师范生PCK的发展情况。数据主要来源于师范生的教学设计及访谈,使用PCK地图作为分析工具。研究发现,经过课程教学,师范生在教学设计中主动表现出的可被识别的PCK片段数量明显增多。师范生PCK各要素均得到有效发展,但发展不够均衡,教学策略知识发展最好,课程知识和学生知识发展不够完善,教学取向知识和学生评价知识发展相对薄弱。此外,师范生PCK各要素之间的关联基本建立,但关联的稳定性和强度存在一定差异。 相似文献
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Colligative properties of dilute solutions are the basic contents for chemistry, chemical engineering and biomedicine majors. The teaching model of multidimensional interact takes teachers as the leader and students as the main body. Through the multi-dimensional interaction among teachers and students, students and groups, students' interest in learning, strong sense of cooperation and independent learning ability can be cultivated. This paper introduces the implementation process of the multi-dimensional interactive teaching mode of "colligative properties of dilute solutions", which includes clarifying the purpose of interaction, constructing learning groups, raising interactive questions, launching interactive activities and implementing interactive evaluation, etc. Multi-dimensional teaching goals can be achieved through group explorations, group presentations and group discussions. 相似文献
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Combining the teaching and learning actuality of organic chemistry experiment in Yuxi Normal University, the blended teaching reform based on rain classroom was introduced in this paper. The influence of mixed teaching mode on teaching and learning was discussed from the changes of teacher's teaching, student's learning and evaluation mode. The flip of traditional classroom and the change of roles of teachers and students was realized by the Online and offline teaching mode. The extraction of caffeine from tea was applied to expound the specific application of hybrid teaching in experimental teaching. The practice proved that mixed teaching helped students to improve self-learning ability, innovation and entrepreneurship and comprehensive applied ability. 相似文献