移动学习环境下高分子物理教学的改革与实践

智能手机、平板电脑等移动终端的普及应用以及应用程序的发展丰富为移动学习的开展提供了有利条件。本文介绍了移动学习环境下高分子物理课程改革的一些举措,包括云教学平台的搭建、知识内容的百科化、移动App应用于辅助教学,以及社交软件与混合式教学的开展。通过对移动学习模式的探索实践,以及对教学成效的分析思考,我们认为移动学习在"互联网+"的时代背景下展现了明显的优势,打破了传统教学模式的时空限制,提升了学生的自主学习能力,促进了师生互动与生生互动,显著提高了教学效果。     

基于计算机探究性建模的高中化学“反应速率”教学设计*

模型和建模是化学核心素养的重要组成部分。计算机辅助建模具有可视化性,能创设探究性学习环境,在教师引导学生构建模型和学习概念中扮演着重要角色。基于计算机辅助建模的优势,开展注重学生参与度、由学生自主建模的探究性教学。以“化学反应速率”为例,选择计算机建模工具SageModeler作为辅助技术,围绕心智模型的建立、评价、发展和优化,旨在通过建模教学提高学生对模型本质的理解,发展学生建模的观念和能力,形成对化学反应速率的清晰认识。     

烟草近红外光谱分析网络化及其应用进展

该文回顾了近红外光谱(NIRS)分析技术的应用历程以及"近红外光谱分析+互联网"模式在烟草领域中的应用研究与实践,探讨了在近红外光谱分析网络化环境中,近红外光谱仪器设备存在的硬件差异以及常规化学计量学方法(算法)在建模、数据处理存在的不足对近红外光谱的深度应用产生的影响,并提出了近红外光谱分析云计算应用的解决思路。最后,对大数据时代近红外光谱分析网络化模式的应用前景进行了展望。     

基于翻转课堂与合作学习的文献管理软件应用教学设计

翻转课堂与合作学习的教学模式对于培养学生的主动学习及创造能力具有促进作用。对信息检索课和现代大学生的特点进行分析,再结合高校化学信息检索课的实际情况,以NoteFirst文献管理软件应用知识内容的教学为例,在课堂教学中引入"翻转课堂"教学模式,并运用小组合作学习进行教学模型的设计与教学过程的设计,培养大学生文献信息管理及利用能力。     

“前测备课-自主学习-后测评估”复习课教学模式的构建与应用——以一节高三化学二轮复习课教学为例

以布鲁姆有效教学理论和构建主义理论为指导,构建了"前测备课-自主学习-后测评估"教学模式,并以"陌生氧化还原反应方程式书写"教学为例进行了应用研究和效果测评。经测评,学生兴趣浓厚,教学效果较好。以期为各学科高三二轮复习课教学模式提供参考。     

化学课堂教学中的研究性学习

实施以创新精神和实践能力为重点的素质教育 ,关键在于改变教育观念 ,着眼点在于改革学生的学习方式以及教师的教学方式。改变以往单纯地接受教师传授知识为主的学习方式 ,为学生构建开放的学习环境 ,提供多渠道获取知识 ,并将学到的知识加以综合应用 ,培养创新精神和实践能力 ,这就是研究性学习的方式。我校从 2个层面开展研究性学习 ,其中以小课题形式的研究性学习 ,从 90年代中期开始实践与探索 ,已取得了阶段性的成果。近年来 ,我们又从课堂教学为突破口 ,探索课堂教学中的研究性学习 ,构建以学习者为中心 ,以学生实践性、自主活动为基…     

"双一流"背景下高等农业院校有机化学基础课程教学新模式的构建及实践

四川农业大学作物学入选一流学科建设,有机化学作为农林专业创新型人才培养的战略支撑,如何把握机遇,找准定位,深化有机化学基础课教学改革,为农林类学科培养基础扎实、创新意识强的优质生源是我们长期面临的挑战。以一流学科建设为导向,通过调研确立双一流建设期有机化学基础课实施性教学方案,构建有机化学立体化教学资源库,实践"兴趣培养–思维开发–自主协作学习"课堂教学模式与"基础技能–综合应用–探索创新"梯度式实践教学模式,在农学、林学、动物医学等共35个专业推广,提升创新型人才培养质量,有效支撑我校一流学科建设,为同类农林高校有机化学基础课教学提供参考。     

考古化学课程建设探索与实践

介绍了文理交叉课程"考古化学"的建设情况,包括课程内容、教学团队及教学方法等。课程团队根据课程特点,充分考虑选课学生不同专业背景,构建了网上教学平台分享教学资料,同时建立课堂微信群加强师生交流和讨论,并在课堂中引入"以案例为基础"(Case-Based Leaning,CBL)的教学法,开展以案例为基础、学生为主体、教师讲解为辅助指导的教学模式,有效激发了学生的学习兴趣,取得了良好的教学效果。     

中学化学导学案教学“学习任务系统”现状及功能重构

在对近年国内兴起的导学案教学"学习任务系统"设计的现状分析的基础上,重构了导学案教学"课前、课中、课后的学习任务系统"的功能,并进行了模型建构及相应的案例分析,最后提出了功能重构后的导学案教学"学习任务系统"设计与编制的建议。     

信息化网络环境下高职应用型课程翻转课堂的教学设计与实施——以“中药制剂检验技术”为例

以"中药制剂检验技术"课程为例,在课前、课内、课后3个阶段,从理论和实践的角度探讨了如何利用N-CLASS网络平台构建和实施高职药品检验类课程的翻转课堂。结果表明,在药品检测类课程中,利用信息技术构建的翻转课堂不仅能够激发学生学习的主动性和学习兴趣,同时也培养了独立学习和协作学习的能力,明显提升了教学效果。     

专业学习共同体对化学全日制教育硕士课堂教学的影响

收集3位化学全日制教育硕士在中学实践过程中文本、视频等资料,采用个案研究、文本分析、课堂观察的质化方法,利用化学课堂教学系统构造模型对专业学习共同体多元成员的干预以及实践过程中化学全日制教育硕士的课堂教学进行分析和比较。结果表明:化学全日制教育硕士的课堂教学在专业学习共同体的干预下,发生了显著的变化,构造模型中的各个教学要素均有不同程度的提升,专业学习共同体中不同成员对全日制教育硕士教学的干预内容、作用效果、影响程度有所差异,并在此基础上建立教学变化模型。多元成员的专业学习共同体可以促进全日制教育硕士的教学发展,为教育硕士的培养改革提供了一种可供参考的实践干预范式。     

A review of Cloud computing technologies for comprehensive microRNA analyses

Cloud computing revolutionized many fields that require ample computational power. Cloud platforms may also provide huge support for microRNA analysis mainly through disclosing scalable resources of different types. In Clouds, these resources are available as services, which simplifies their allocation and releasing. This feature is especially useful during the analysis of large volumes of data, like the one produced by next generation sequencing experiments, which require not only extended storage space but also a distributed computing environment. In this paper, we show which of the Cloud properties and service models can be especially beneficial for microRNA analysis. We also explain the most useful services of the Cloud (including storage space, computational power, web application hosting, machine learning models, and Big Data frameworks) that can be used for microRNA analysis. At the same time, we review several solutions for microRNA and show that the utilization of the Cloud in this field is still weak, but can increase in the future when the awareness of their applicability grows.     

巧用信息手段，打造疫情中无机化学云课堂

Aiming at the requirement of "suspending classes without stopping learning" in the epidemic situation of new coronary pneumonia, a variety of information technologies were used to construct a cloud classroom of inorganic chemistry. How to use Tencent classroom, Superstar learning and WeChat public account to construct this "inorganic chemistry" cloud class was introduced. The teaching effect of Inorganic Chemistry was discussed.     

现代教育技术构建氧化还原反应线上实验教学的策略探索与实践

In the era of "Internet +", with the help of national excellent MOOC course of Chinese university and Mlabs-virtual experimental software, Tencent classroom is built to provide a diversified and efficient online inorganic chemistry basic laboratory classroom by combining a variety of modern education technologies with the concept of flipped classroom. Taking the redox reaction experiment as an example, we designed a multi-link teaching process and carried out a multi-faceted assessment. The online teaching can not only strengthen the cultivation of students' comprehensive and innovating ability, but also help teachers to update the teaching mode and create the new experimental content in line with the development of the times, so as to realize the mutual learning between teachers and students in the exploration of experimental teaching reform.     

Recognition of big data mixed Raman spectra based on deep learning with smartphone as Raman analyzer

Raman spectral detection has emerged as a powerful analytical technique due to the advantages of fast acquisition, non-invasion, and low cost. The on-site application is highly dependent on Raman automatic analysis algorithm. However, current Raman algorithm research mainly focuses on small sample Raman spectroscopy (RS) identification with defects of low accuracy and detection rate. It is also difficult to realize rapid RS measurement under big data. In this paper, rapid recognition of mixtures in complex environments was realized by establishing a fast Raman analysis model based on deep learning through data training, self-learning, and parameter optimization. The cloud network architecture was proposed to apply deep learning to real-time detection using Smartphone-based Raman devices. This research solves the technical problems about mixture recognition under big data and thus could be used as a new method for fast and field RS detection in complex environments.     

以学为中心的高分子化学线上教学实践

In response to the COVID-19 epidemic prevention, the "polymer chemistry" course teaching team actively explored the "learning-centered" online teaching model. The students were guided to active learning by using the rich contents of Chaoxin online teaching platform and multiple online teaching activities. The basic knowledge points, difficulties and emphases of the teaching were highlighted and the real-time communication and Q&A were achieved in combination with the Tencent course live broadcast and QQ learning group. Following the concept of "students as the main body and teachers as the leading", the online teaching of "polymer chemistry" has effectively aroused the students' interest in learning, cultivated the initiative of autonomous learning, organically integrated the ideological and political education, and achieved a good learning outcome.     

学生参与的有机化学教学

基于以学生为中心的教育理念和高素质人才的培养目标,在有机化学课程中提出了"学生参与讲授法"。这一方法可以帮助学生提高自主学习意识和综合素质。结合有机化学教学,系统阐述了这一方法的实施过程。     

超星学习通辅助分段考试在高校有机化学课程中的应用

Super-star learning assisted sectionalized examinations were carried out in university organic chemistry course. The passing rate and excellent rate of final examination of organic chemistry course have been effectively improved. This strategy emphasizes the accumulation of knowledge in normal learning which can improve students' active learning ability and teaching quality.     

Some Latin American experiences concerning teaching of chemical metrology

In this paper, 15 years of the experiences acquired concerning the teaching of chemical metrology in Latin America are presented. These include postgraduate and undergraduate activities developed in eight countries. The combination of theoretic and practical activities and the sequence of learning from metrological, statistical, and chemometrical backgrounds up to practical activities in personal computers are basic and motivate the learning process. Care is taken to promote the metrological approach and thinking in analytical chemistry. The learning of computing techniques plays an important role, combining graphic and numerical techniques for data analysis. The role of examples during the teaching process is analyzed and recognized. The introduction of a general model of errors permits one to approach different topics on a metrological basis. The metrological approach of uncertainty based on the theory of errors permits one to develop the topic. Undergraduate students acquire a basic metrological knowledge and other experiences are also presented. Recommendations for undergraduate and postgraduate programs are pointed out.     

“化学在抗击新冠肺炎疫情中扮演的重要角色”专题教学

Considering COVID-19 epidemic prevention and control, education materials were excavated and refined, such as chemical disinfectants, typical drugs used in clinical treatment or trial and materials for preparation of medical protective equipment. We have carried out thematic teaching on "The important role of chemistry in the fight against COVID-19 epidemic", and integrated ideological and political education into the thematic teaching. Through thematic teaching, we can make students feel the charm of chemistry subject, stimulate students' interest in learning chemistry, fully mobilize students' learning enthusiasm and initiative, strengthen students' confidence and courage to overcome difficulties, cultivate the students' professional disciplines literacy and scientific literacy, activate students' love for the motherland, the people and the Communist Party of China.