Understanding key drivers affecting students’ use of artificial intelligence-based voice assistants

Education and Information Technologies - Artificial intelligence (AI)-based voice assistants have become an essential part of our daily lives. Yet, little is known concerning what motivates...     

Writing fluency and quality in kindergarten and first grade: the role of attention,reading, transcription,and oral language

In the present study, we examined the influence of kindergarten component skills on writing outcomes, both concurrently and longitudinally to first grade. Using data from 265 students, we investigated a model of writing development including attention regulation along with students’ reading, spelling, handwriting fluency, and oral language component skills. Results from structural equation modeling demonstrated that a model including attention was better fitting than a model with only language and literacy factors. Attention, a higher-order literacy factor related to reading and spelling proficiency, and automaticity in letter-writing were uniquely and positively related to compositional fluency in kindergarten. Attention and higher-order literacy factor were predictive of both composition quality and fluency in first grade, while oral language showed unique relations with first grade writing quality. Implications for writing development and instruction are discussed.     

古老埃及陵墓的数字建构和保护

从吉斯的金字塔到底比斯的陵墓,古老埃及的璀璨历史就体现在这些著名的建筑上.不幸的是,每年近四百万的旅游者给上述古建筑,尤其是那些位于尼罗河西岸的陵墓带来了沉重的负担.用数字化技术帮助建立起传统陵墓的资料库,以便更好地保护这些重要的历史建筑.同时通过重建一个数字陵墓的例子,讨论了运用照片图像及数字建构技术应注意的新问题,例如需要消除图像的变形、矫正三维模型和调整光线的平衡等问题,来达到真实的数字感观.     

Teaching Teamwork: Electronics Instruction in a Collaborative Environment

ABSTRACT

The Teaching Teamwork Project is using an online simulated electronic circuit, running on multiple computers, to assess students’ abilities to work together as a team. We pose problems that must be tackled collaboratively, and log students’ actions as they attempt to solve them. Team members are isolated from one another and can communicate only through an online chat channel, but modifications to the circuit made by any team member, insofar as they alter the behavior of the circuit, can affect measurements made by the others. We log all relevant student actions, including calculations (using an online calculator), measurements (using an online multimeter), inter-student communications, and alterations made by the students to the circuit itself. Automated analysis of the resulting data sheds light on the problem-solving strategy of each team, sometimes with surprising results.     

A Remediation Program in an Urban College

Abstract

This article presents ten strategies instructors can use to get their students to take more responsibility for their learning. Suggestions are given about the importance of getting students to verbalize why they are taking the course, helping students get into the proper mindset for each class, and structuring assignments so students will be more likely to come to class prepared. Other suggestions include teaching students to look out for each other, behave responsibly when working in groups, and analyze their learning experiences. By teaching responsibility, as well as content, in our classrooms, we can enhance learning, raise the level of our classrooms, and produce more responsible members of society.     

A constrained linear quadratic optimization algorithm toward jerk-decoupling cartridge design

Linear direct feed drives are widely used in machine tools, but an abrupt counter force from the secondary part will induce the jerk to the metro frame contacted with the linear motor and cause the vibration of auxiliary devices on it. The jerk-decoupling cartridge (JDC) provides a buffer to reduce such an impact. Design target for such a system includes both the tracking error and the jerk induced to the metro frame. To achieve both targets systematically, this work presents an integrated approach to efficiently determine parameters in the JDC and the position controller of the feed drive. The problem is firstly formulated as a nonlinear constrained optimization problem, which is then converted to a series of projection gradient optimization problems and step searching problems, which are either convex or linear. Thus, fast convergence of parameters are achieved within first several iterations. Through a series of simulation, the effectiveness of proposed methodology is verified.     

The contribution of primary school teachers to curriculum planning and development in Iraq

ABSTRACT

This article describes the role of primary school teachers in Iraq in connection with curriculum change and development. It identifies the ways in which professional teachers have been faced with increased central control and concludes by responding directly to the Ministry of Education. A survey involving interviews and question‐ naires was conducted with primary school teachers of different school location, age, gender, experience, qualifications and subjects taught, and in various school locations. Headteachers and education officials were also interviewed to establish the degree of involvement of primary teachers in their curriculum planning process.