“Do we teach subjects or students?” Analyzing science and mathematics teacher conversations about issues of equity in the classroom

Teachers involved in a Master's level course in diversity participated in virtual, synchronous, anonymized discussions around issues of ethnic and racial diversity, gender, and stereotypes that could impact their students’ participation in fields related to science, technology, engineering, and mathematics (STEM). Guided by theoretical frameworks from Social Cognitive Career Theory (SCCT) and Critical Race Theory (CRT), a convenience sample of 14 science and mathematics teachers participated in a series of virtual chats using open‐ended questioning and facilitated by two university instructors. Using conversation and critical discourse analyses, three primary themes emerged: understanding of issues related to stereotypes, encouragement of females and minorities to pursue careers in STEM, and the place for diversity discussions in science and mathematics classrooms. The teachers felt burdened by curricular and administrative constraints that inhibit their ability to participate in thought‐provoking critical conversations. The paper concludes with a discussion of ways teachers can assist in the STEM career identity development of their underrepresented females and students of color and calls for research that combines the key findings in SCCT and CRT to build confidence and capacity for teachers to effectively confront issues of racism, sexism, and stereotyping in science and mathematics classrooms.     

Characterization of Fluxing and Hybrid Underfills with Micro‐encapsulated Catalyst for Long Pot Life

For the fine‐pitch application of flip‐chip bonding with semiconductor packaging, fluxing and hybrid underfills were developed. A micro‐encapsulated catalyst was adopted to control the chemical reaction at room and processing temperatures. From the experiments with a differential scanning calorimetry and viscometer, the chemical reaction and viscosity changes were quantitatively characterized, and the optimum type and amount of micro‐encapsulated catalyst were determined to obtain the best pot life from a commercial viewpoint. It is expected that fluxing and hybrid underfills will be applied to fine‐pitch flip‐chip bonding processes and be highly reliable.     

A Consumption Behavior Model with Advertising And Word-of-Mouth Effect

It is widely-held belief that people’s consumption behavior is partly determined by advertising and word-of-mouth effect especially in monopolistic competitive market. Owing to this, we propose a mathematical model to interpret consumer behavior under the advertising and word-of-mouth effects, which is divided into continuous and discrete types for dynamic behavior analysis. Our research indicates the continuous model undergoes fold bifurcation, Hopf bifurcation, and degenerate fold-Hopf bifurcation; the discrete model undergoes flip bifurcation and Neimark-Sacker bifurcation. Moreover, bifurcation diagrams are given by using MATLAB to illustrate the model. Based on the theory of Hopf bifurcation or Flip bifurcation, the system undergoes supercritical Hopf bifurcation or Flip bifurcation under certain conditions. This lead to both advertising impacts periodically on consumer behavior, and a short-term reduction cause no effect the public¡s recognition of the brand, which can guide precision advertising investment.     

如何提高高等数学课堂教学的质量

数学的课堂教学过程是在教师的传授和指导下进行学习、掌握数学知识、技能、思想、方法的一种认识过程.影响数学课堂教学质量的因素是多方面的,本文仅就提高高等数学课堂教学质量谈几点个人的认识.     

大学物理实验教学的认识与体会

本文结合工作实际介绍了大学物理实验教学的认识与体会。     

“传感器调理电路的设计与仿真”线上教学实践

后疫情时期,尽管疫情状况好转,但为了时刻应对突发状况的发生,保证教学活动平稳进行以及保证学生参与度,有必要探讨一套行之有效的线上教学模式。本文以北京航空航天大学“传感器调理电路的设计与仿真”为例,就疫情期间线上教学的教学结构、教学内容、教学考核方式以及教学成效进行阐述,并进行思考总结。     

组态软件技术课程教学设计与实践

在工程教育专业认证持续深入推进的背景下,结合电气工程专业特色,对组态软件技术课程教学进行重新设计与教学实践。引入高阶思维临场认知对教学内容进行重构,应用课堂多源数据建立教学评测一体化的教学新模式。实践表明该课程的教学设计有着良好的沉浸式体验感,学生主动建构、解决问题的高阶思维能力得到提升,新的教学模式促进了课程教学的高质量发展。     

基于虚拟仪器的辅助教学系统

本文设计了一套基于虚拟仪器的“模拟电子技术”课程辅助教学系统,系统由便携式“模拟电子技术”实验电路板、数据采集设备、笔记本电脑、上位机软件、投影仪及投影仪幕布组成。本系统应用于“模拟电子技术”课堂教学,较好的将理论课教学与实验课教学融为一体。与仿真软件相比,该系统具有实际的物理意义,增加课程的工程性和实践性,取得了较好...     

“工科电路分析”课程教学方法的研究

"工科电路分析"是工科各类专业,特别是电类专业的一门重要的基础理论课,它为后续课程提供了必要的理论基础。本文通过对课程教学方法的具体研究,指出灵活、科学地运用多种教学方法,加强实践教学环节,对激发学生学习兴趣,提高教学质量起到良好的作用。     

多媒体教室智能化管理系统在数字化校园中的应用

采用多媒体教室智能化管理系统,将多媒体教室网络排课系统、多媒体教室网络门禁系统、多媒体教室网络设备控制系统、多媒体教室网络监控系统进行整合集成,实现用较少的人员管理更多的多媒体教室,提高管理效率,及时发现和解决多媒体教室使用中出现的问题,更好地服务教学。