Educational Studies in Mathematics - We used an assessment platform to study the potential of rich student data obtained online to influence classroom instruction and help teachers respond to... 相似文献
This study compares students’ opportunities to engage in transformational (rule-based) algebraic activity between 2 classes taught by the same teacher and across 2 topics in beginning algebra: forming and investigating algebraic expressions and equivalence of algebraic expressions. It comprises 2 case studies; each involves a teacher teaching in two 7th grade classes. All 4 classes used the same textbook. Analysis of classroom videotapes (15–19 lessons in each class) revealed that the opportunities to engage in transformational algebraic activity related to forming and investigating algebraic expressions were similar in each teacher’s 2 classes. By contrast, substantial differences were found between 1 teacher’s classes with regard to the opportunities to engage in transformational algebraic activity related to equivalence of algebraic expressions. The discussion highlights the contribution of the interplay among the mathematical topic, the teacher, and the class to shaping students’ learning opportunities. Specifically, the mathematical topic appeared to play a prominent role in certain situations, with the topic involving deductive reasoning generating high variation in classes of 1 teacher but not in the other’s.
Involvement in a mentor-student relationship is an invaluable experience for new graduate students. These students frequently have opportunities and experiences provided to them by their mentor that may be otherwise unattainable. Mentoring can help new graduate students develop academically, personally, and professionally. This article describes mentoring in gerontology education from the perspectives and personal experiences of new graduate students in sociology and gerontology. Discussed in this article are types and phases of mentoring, the need for a mentor in gerontology education, selection a mentor, and issues related to mentoring and career advancement. 相似文献
EDISON'S ELECTRIC LIGHT: BIOGRAPHY OF AN INVENTION by Robert Friedel, et al. (New Brunswick, NJ: Rutgers University Press, 1986—$27.95 until July 1st, then $35) ENGINEERS & ELECTRONS: A CENTURY OF ELECTRICAL PROGRESS by John D. Ryder and Donald G. Fink (IEEE Press, 345 East 47th St., New York 10017—price not given) THE MAKING OF A PROFESSION: A CENTURY OF ELECTRICAL ENGINEERING IN AMERICA by A. Michal McMahon (New York: IEEE Press, see address to left, 1984—price not given) IBM'S EARLY COMPUTERS by Charles J. Bashe, et al (Cambridge, MA: MIT Press, 1986—$27.50) THE POWER OF THE PRESS: THE BIRTH OF AMERICAN POLITICAL REPORTING by Thomas C. Leonard (New York: Oxford, 1986—$22.50) 相似文献
This paper focuses on children of refugees and migrant workers from 48 countries who study together in one multicultural school in the city of Tel Aviv, Israel. The context of our study is the current ethos of globalisation and within it the phenomenon of vast migrations and creation of intercultural social realities. The aims of the study were to illustrate the principles, practices and dilemmas that form the very basis of the school culture, to let the special or ‘foreign’ voices of the children and the teaching staff be heard, and to identify the educational qualities that are responsible for the school’s success. In our research we employed both the method of qualitative case study and the philosophical interpretive discourse. On the basis of our observations, interviews and text analyses of the school’s educational manifesto, we suggested the following pedagogical virtues as the key factors responsible for the school’s extraordinary achievements: (1) a firm commitment to a humanist and multicultural stance; (2) a progressive and pragmatic dialectic approach regarding students’ empowerment, via social integration and academic success as well as via multicultural pedagogy; and (3) a dialectic pedagogical approach that stresses therapeutic-individualised teaching as well as challenging students to attain high academic standards. 相似文献
Engaging students with multiple solution problems is considered good practice. Solutions to problems consist of the outcomes
of the problem as well as the methods employed to reach these outcomes. In this study we analyze the results obtained from
two groups of kindergarten children who engaged in one task, the Create an Equal Number Task. This task had five possible
outcomes and five different methods which may be employed in reaching these outcomes. Children, whose teachers had attended
the program Starting Right: Mathematics in Kindergartens, found more outcomes and employed more methods than children whose
teachers did not attend this program. Results suggest that the habit of mind of searching for more than one outcome and employing
more than one method may be promoted in kindergarten. 相似文献
Metric space is a universal and versatile model of similarity that can be applied in various areas of non-text information retrieval. However, a general, efficient and scalable solution for metric data management is still a resisting research challenge. In this work, we try to make an important step towards such management system that would be able to scale to data collections of billions of objects. We propose a distributed index structure for similarity data management called the Metric Index (M-Index) which can answer queries in precise and approximate manner. This technique can take advantage of any distributed hash table that supports interval queries and utilize it as an underlying index. We have performed numerous experiments to test various settings of the M-Index structure and we have proved its usability by developing a full-featured publicly-available Web application. 相似文献