An experiment in learning algebra with an intelligent learning environment

This paper presents a new prototype of an intelligent learning environment and the results of an experiment in learning by problem solving. Forty-six French secondary school students solved problems of polynomial factorization by interacting with the learning environment during four forty-five-minute sessions. The intelligent learning environment is a new version of the APLUSIX system, called APLUSIX/M0-V2, that has been implemented on a Macintosh computer. This system checks the validity of the actions a student wants to perform, tells the student why a query is invalid, does the calculations for the student, and gives advice if asked for help. The objective of the learning experiment was to enable students to acquire (i) knowledge in matching formal rules of transformation with a given expression; and (ii) heuristics of choice between possible transformations. The results confirmed the existence of several different levels of matching knowledge as well as several different student learning paths in the acquisition of matching knowledge. Heuristics appeared to be fairly easily learned with the APLUSIX learning environment.     

Seeking big ideas in algebra: the evolution of a task

In this paper we describe a strand of activities for teachers of mathematics that we used with two cohorts of participants in a professional development program called Revitalizing Algebra (REAL). We first discuss our goals and describe the participants, and then we describe the construction and selection of the tasks followed by teacher responses. Finally, we reflect on different iterations of the tasks, their impact on the teachers’ thinking and practice, and the role of school and department culture in the process of change.     

Examining the relationship between emotion variability,self-regulated learning,and task performance in an intelligent tutoring system

Educational technology research and development - Prior research has focused extensively on how emotion tendencies (e.g., duration, frequency, intensity, and valence) affect students’...     

《中国现当代文学名著导读》导学初探

《中国现当代文学名著导读》课程教学模式改革,应确立“以读为主、以导助读、重在导法”的课程导学的基本理念,并以此作为导学改革探索的基点。     

基于智性学习任务设计与处理的教学策略

针对当前职业学校教学中的典型问题,本文倡导基于智性学习任务设计与处理的教学策略,阐述了它的理论基础、设计与反思的维度、可能的教学演进过程;分析了教师在这一策略中的创造、编制与实施的典型困难,提出应区别工作任务和学习任务,丰富教学实践中运用的任务类型,学习任务的设计应成为当前教学改革之工作重心,而教师学习共同体的建设则是促进任务开发的重要组织手段。     

Situated learning in an abstract algebra classroom

Advisory committees of mathematics consider abstract algebra as an essential component of the mathematical preparation of secondary teachers, yet preservice teachers find it challenging to connect the topics addressed in this advanced course with the high school algebra they must someday teach. This study analyzed the mathematical content knowledge that developed in preservice teachers during a semester course in abstract algebra utilizing Lerman's “person-in-practice-in-person” lens. This unit of analysis provided insights into the situated nature of the algebra learned by illuminating how the goals of the instructor and preservice teachers impacted the community of practice created in the university classroom and how participating in that community impacted the preservice teachers' mathematical identities.     

独立学院本科生导师制探微

导师制具有强大的生命力,原因在于它符合了高等教育发展的基本规律.独立学院作为一种新的办学形式,为适应当前高等教育发展的形势并根据生源特点,在人才培养过程中采用导师制.实现独立学院导师制的保障机制应做到加强导师的选拔与聘用,明确导师的职责,制定严格的培养方案,建立健全的运行机制.     

Designing an intelligent tutoring system for computer programing in the Pacific

Education and Information Technologies - Intelligent Tutoring Systems (ITSs) are educational systems that reflect knowledge using artificial intelligence implements. In this paper, we give an...     

Perceptual learning transfer in an appetitive Pavlovian task

In two experiments, rats were given intermixed or blocked preexposure to two similar compound stimuli, AX and BX. Following preexposure, conditioning trials took place in which AX (Experiment 1) or a novel compound stimulus NX (Experiment 2) was paired with a food-unconditioned stimulus in an appetitive Pavlovian preparation. Animals that were given alternated preexposure showed lower generalization from AX to BX (Experiment 1) and from NX to a new compound, ZX (Experiment 2), than animals that were given blocked preexposure, a perceptual learning and a perceptual learning transfer effect, respectively.     

语文教育创新：永恒的课题

语文教学在创新教育中有着特殊的作用。知识创新人们运用母语读写听说的能力提出了前所未有的高要求。如何发挥语文教学在创新教育中的作用,语文教育身身如何创新,已成为紧迫的研究课题;新世纪语文教育要不断创新,首先是教育观念的创新,其次理论研究要创新,第三,教学实验也要创新;希望研究中辩证法多一步,视野宽一点,目光远一点,合作气氛浓一点,这样,我们前进的步伐才能快一点。     

A yankee tutor in Gillingham’s court

Subjects were 224 elementary, middle, and high school special education students receiving Gillingham tutorial services during the academic year 1983–1984. The majority of students had received prior service. Some of the students were in semi-self-contained classes (nonmainstreamed for academics). All students were given an individual intelligence test. Pretest and posttest scores (ten school months interval) were obtained in oral and silent reading and in spelling. Younger students commenced tutoring with strengths in oral reading (decoding and comprehension). Progress was made at the rate of more than one-half the expectancy for the nonspecial education student. Students commenced tutoring with approximately one classroom grade deficiency in silent reading comprehension and progressed, too, at the rate of more than one-half the expectancy of nonspecial education students. Spelling showed the greatest deficit at the time tutoring commenced and the least improvement. The same overall pattern but at a lower skill level prevailed with the semi-self-contained students. Parents, administrators, and referring agents recognized the success of the program. The modest cost of the training program has implications for other school systems.     

智能工业pH值变送器的设计

该文介绍了一种采用89C52单片机设计的pH值智能变送器,将工业现场的0～14 pH值变送为4～20 mA的标准信号输出.该变送器采用玻璃电极作为测量传感器,采用两片7650运放组成的差动电路作为输入电路,提高了抗干扰能力,采用Ptl00热电阻测量被测介质的温度,对pH值进行温度补偿,提高了测量精度.文中介绍了硬件电路的设计原理及软件框图.     

农业院校公共基础教学中心实验室智能化管理的设计与实践

随着我国教育改革的进一步深化,"以人为本"的创新人才培养模式更加需要资源开放共享的实验室,智能化的实验室管理模式已经成为各高校实验室发展的必然趋势。该文介绍了华南农业大学实验教学中心建成的实验预约与智能化管理系统的构架,该系统投入应用后提高了实验室管理效率和资源共享程度。     

Bidimensional sorting in preschoolers with an instrumental learning task

74 lower- and middle-class children aged 2 1/2, 3 1/2, and 4 1/2 years who were successful at unidimensional sorting of 2 objects by either color or form were given feedback for correct bidimensional sorting of 3 objects, 2 of which had been used in unidimensional testing. Four of the 10 2 1/2-year-olds and 58 of the 64 3 1/2- and 4 1/2-year-olds reached criterion on the bidimensional sorting task. Neither social class nor performance on a verbal comprehension test (the Peabody Picture Vocabulary Test) was significantly correlated with success on either unidimensional or bidimensional sorting, although social class and test scores were significantly correlated. The results indicate that Piagetian centration (i.e., the inability to transcend unidimensional attention) is a task- or situation-specific phenomenon, and biodimensional responding is the rule rather than the exception for 3 1/2- and 4 1/2-year-olds in an instrumental situation involving a limited number of stimuli.     

环境伦理:高校德育不容忽视的重要课题

当前，保护地球生态环境、维持地球生态明，推进人类社会可持续发展已成为世界的共识。然而，在人类已进入二十一世纪的今天，环境的污染和破坏仍在继续，而且日趋严重。本认为，应在高校德育中引入环境伦理教育，提高大学生的生态意识，使之成为具有生态意识、生态道德和生态能力的新型人才。     

新时代高校立德树人根本任务的生成逻辑

从教育"培养何种人、为谁培养人、怎样培养人"这一根本问题出发,将立德树人作为高校教育的根本任务和立身之本,是对高等教育回归本质的深切召唤。高校落实立德树人是对中国特色社会主义高等教育办学历史发展的高度凝练,是对中国古代优秀传统文化、红色革命文化的创新性继承和创造性转化,是对马克思人的全面发展理论、列宁青年德育思想以及毛泽东教育思想的科学发展。因此,从历史、文化和理论三个维度探寻高校立德树人的生成逻辑,对深化高校立德树人的精神实质,推进新时代高等教育事业的发展具有重要的现实意义。     

新时期高校推行本科生导师制初探

处于知识经济大潮中,高校面临着诸多新挑战下的高等教育管理模式等方面的问题,作为高等教育改革的中心———本科教育的改革将引起各方面的重视。当前困扰本科教育的问题有师生比失调,学生创新意识不足,教书育人分离等,新时期提出推行导师制显得十分必要,要统一认识,明确工作职责,加强导师管理。     

Intensive scaffolding in an intelligent tutoring system for the learning of algebraic word problem solving

The term intensive scaffolding refers to any set of conceptual scaffolding strategies that always allow the user to find the solution to a problem. Despite the many benefits of scaffolding, some negative effects have also been reported. These are mainly related to the possibility that a student solves the problems without actually engaging in their content. In this paper, we have used an intelligent tutoring system (ITS) to analyze the effect that intensive scaffolding has on the learning of algebraic word problem solving (AWPS). Two different versions of the ITS, which differ in the amount of scaffolding that they provide, have been created. These two versions were used by two groups of students in Secondary Education, in a quasi‐experimental study. The comparison of pre‐ and posttest scores shows a significant increase of the competence in AWPS in the group that used the ITS with intensive scaffolding.