No description available.

This study investigated the perceived strategies used to deal with mixed ability classes of four English teachers, two working at a year 4-9 compulsory school, and two at an upper secondary school in Sweden. The same teachers were asked about their attitudes towards and experience of ability grouping. The findings of the latter part of this investigation were discussed in reference to research concerning the field of ability grouping.Semi structured interviews were used. Strategies used by teachers included grouping devices, issues of communication, giving individual attention inside and outside the classroom and encouraging self- and peer reviewing. Two teachers in the 4-9 school used ability grouping sparingly but clearly and had experienced an ability grouping of a year nine class which was perceived to have predominantly positive results in academic terms and both positive and negative results in social areas. The teachers of upper secondary school did not use ability grouping – either on democratic grounds or because it was perceived to be unacceptable in the particular school climate. Because the research in ability grouping is diverse, many of the teachers’ attitudes could be supported, and refuted in the research. The teachers using ability grouping felt themselves to be going against research made, but were confident in the decisions they made. Further investigations about maximum numbers of students in heterogeneous classes and time spent with an extra teacher contra own teacher were encouraged.

The purpose of this study is to determine and explain the problems faced by educators teaching learners experiencing learning problems in mixed ability classes. A qualitative research technique, which aimed at studying educators in their natural settings , was used. To achieve this aim the study was conceived as a case study of grade one educators from three Primary Schools at Mpophomeni Township. A self-designed interview schedule that was supplemented by observation schedule was used to collect data. The interview schedule included questions relating to mixed ability classes, learners with learning problems, outcomes based education, problems experienced by educators in their classroom practices and the ways of coping with such problems. School, educator and classroom resource profiles were also used in the study to gather information that might be useful in the discussion of the findings. The research sites were three Primary Schools at Mpophomeni Township. In these schools there were eleven grade one educators who formed the population from which a sample of six educators was randomly selected. Three of the six educators who formed the sample were interviewed and observed while the other three were only interviewed. Interviews were tape-recorded and transcribed for data analysis, which was done descriptively. The findings of the study revealed that educators had problems when they were dealing with the content, assignments, assessment and resources and when they discipline learners. It also revealed that most of the problems were due to the introduction of curriculum 2005 in grade one in 1998, and the fact that educators were not trained to teach learners experiencing learning barriers. The study concluded that insufficient in-service training and the introduction of curriculum 2005 were the main causes of educators' problems, and a call to recontextualise the learning environment, which includes educators and the context in which they teach, was made. / Thesis (M.Ed.) - University of KwaZulu-Natal, Pietermaritzburg, 2001.

Ability grouping has been prevalent in American schools for over a century (Burris & Welner, 2005; Museus, Palmer, Davis & Maramba, 2011; Slavin, 1990). Although ability grouping has been studied in terms of student performance, little research has examined the relationship between this practice and student motivation. The purpose of this study was to examine middle school students’ (N = 2,279) mathematics self-efficacy and its sources in ability grouped mathematics courses in the Southeastern U.S. The study also examined whether students in each ability group were represented proportionately by gender, ethnicity, and SES when compared to the full sample. Students responded to Likert scaled items assessing self-efficacy and its four sources (Bandura, 1997). Tests of mean differences in self-efficacy and its sources revealed that students in above-level courses reported significantly higher levels of self-efficacy than students in on- and below-level courses. Regression analysis revealed that mastery experiences, social persuasions, and negative physiological state predicted self-efficacy for above- and on-level students. Only mastery experiences and vicarious experiences predicted mathematics self-efficacy for below-level students. Results imply that teachers who work with students who are struggling in mathematics may find it beneficial to provide ample opportunity to expose students to models in mathematics.

Ability grouping has long been a subject of heated debate in education systems worldwide. Despite being such a controversial topic, ability grouping is still widely used in classrooms across the world. The purpose of this paper is to examine the impact that ability grouping has not only on students, but also on those who implement this tool in the classroom, namely teachers. To provide a balanced view, the paper considers the advantages and disadvantages of ability grouping. The paper also compares ability grouping in both the U.S. and Singapore to demonstrate that no system is perfect. Each comes with its own strengths and weaknesses. However, aspects of each system can be borrowed and incorporated to strengthen existing education systems. Because each country has unique political, economic, and social forces, it is important for policy makers to customize foreign practices according to the political and cultural landscape of their country.

Object tracking is an active research topic in computer vision and has appli- cation in several areas, such as event detection and robotics. Vehicle tracking is used in Intelligent Transport System (ITS) and surveillance systems. Its re- liability is critical to the overall performance of these systems. Feature-based methods that are used to represent distinctive content in visual frames are one approach to vehicle tracking. Existing feature-based tracking systems can only track vehicles under ideal conditions. They have difficulties when used under a variety of conditions, for example, during both the day and night. They are highly dependent on stable local features that can be tracked for a long time period. These local features are easily lost because of their local property and image noise caused by factors such as, headlight reflections and sun glare. This thesis presents a new approach, addressing the reliability issues mentioned above, tracking whole feature groups composed of feature points extracted with the Scale Invariant Feature Transform (SIFT) algorithm. A feature group in- cludes several features that share a similar property over a time period and can be tracked to the next frame by tracking individual feature points inside it. It is lost only when all of the features in it are lost in the next frame. We cre- ate these feature groups by clustering individual feature points using distance, velocity and acceleration information between two consecutive frames. These feature groups are then hierarchically clustered by their inter-group distance, velocity and acceleration information. Experimental results show that the pro- posed vehicle tracking system can track vehicles with the average accuracy of over 95%, even when the vehicles have complex motions in noisy scenes. It gen- erally works well even in difficult environments, such as for rainy days, windy days, and at night. We are surprised to find that our tracking system locates and tracks motor bikes and pedestrians. This could open up wider opportunities and further investigation and experiments are required to confirm the tracking performance for these objects. Further work is also required to track more com- plex motions, such as rotation and articulated objects with different motions on different parts.

Thesis (M. S.)--Michigan State University. Dept. of Science and Mathematics Education, 2006. / Title from PDF t.p. (viewed on June 19, 2009) Includes bibliographical references. Also issued in print.

Thesis (Ed.D.)--Teachers College, Columbia University, 1966. / Typescript; issued also on microfilm. Includes tables. Sponsor: Esther M. Westervelt, . Dissertation Committee: Robert A. Dentler. Includes bibliographical references (leaves 154-164).

Thesis (Ph. D.)--Oregon State University, 2006. / Printout. Includes bibliographical references (leaves 81-91). Also available on the World Wide Web.

Thesis (M.Ed.)--Regis University, Denver, Colo., 2006. / Title from PDF title page (viewed on Sept. 14, 2006). Includes bibliographical references.