A Multidimensional Assessment of Teachers’ Knowledge of Algebra for Teaching: Developing an Instrument and Supporting Valid Inferences

Numerous researchers have suggested that there are multiple mathematical knowledge and skill areas needed by teachers in order for them to be effective teachers of mathematics: knowledge of the mathematics that are the goals of instruction, advanced mathematics beyond the instructional material, and mathematical knowledge that is specific to what is needed to teach students. The research reported here is about the development of a test of teachers’ knowledge in these three areas related to the teaching of algebra. The test development process is described and the results of several analyses are reported that had the goal of checking whether valid inferences can be made about the hypothesized components of teacher knowledge.     

Pyramid linear prediction coding for images

lintroductionCompressionofdigitalimagesandvideosignalstoreducetheirstorageandtransmissionbandwidthrequirementsisofgreatinterestintheimplementationofcolnnlunicationsystems.Moreandmorecompressioncodingmethod$fordigitalimagesandvideosignalshavebeenproposedto…     

A Content Analysis of Social Groups in Prime-Time Spanish-Language Television

The popularity of Spanish-language television in the United States has been increasing rapidly, yet little is known about the images viewers are likely to encounter when exposed to this content. As such, the present study investigates the representation of men and women in the 2004 prime-time, Spanish-language television season. Social identity theory provides a framework for understanding the potential influence of exposure to these depictions. Most notably, wealthy women were characterized as the slimmest, most provocatively dressed, and most submissive characters on Spanish-language television, whereas wealthy men were the heaviest, most conservatively dressed, and most dominant figures in prime time.     

Peer education in the commons: a new approach to reference services

In planning for a new library construction project for the University of Oklahoma-Tulsa, graduate students enrolled in the University of Oklahoma (OU) School of Library and Information Studies collaborated in an innovative effort to develop a commons-based reference service. By first considering a philosophical approach to the need for a commons, blending in the experiences of other libraries that have created similar spaces, and focusing on the workflow issues likely to be encountered by the graduate assistants staffing the commons itself, this planning team developed an uncommon peer-to-peer approach to reference and education services, one focused on the patron as student.     

Socialization to Work in Late Adolescence: The Role of Television and Family

This survey of college freshmen examines the role of television and family in anticipatory socialization to work. Findings indicate that both sources play a role in the development of work-related values and aspirations, but contribute in different ways. Wishful identification was higher for characters perceived to have higher paying jobs and stronger extrinsic (but not intrinsic) work values. Although causal direction cannot be shown, results suggest that respondents internalized the intrinsic and extrinsic work values they perceived in their parents' jobs, but derived mainly extrinsic work values and desire for easy work from observing their favorite characters at work.     

Broadcasting and the law of defamation

Although the law of libel and other forms of defamation seems to undergo change with every new term of the U.S. Supreme Court, it is hoped that this “here is how it is in the summer of 1971” review will be of value. Dr. Milan Meeske is assistant professor in the Department of Communication of Florida Technological University.     

Constructing Gender Stereotypes Through Social Roles in Prime-Time Television

Using a sample of 124 prime-time television programs airing on the 6 broadcast networks during the 2005–06 season, this study examined the social roles enacted by female and male characters. The findings confirm that female characters continue to inhabit interpersonal roles involved with romance, family, and friends. In contrast, male characters are more likely to enact work-related roles. Moreover, programs employing one or more women writers or creators are more likely to feature both female and male characters in interpersonal roles whereas programs employing all-male writers and creators are more likely to feature both female and male characters in work roles.     

Probability Disassembled

While there is no universal logic of induction, the probabilitycalculus succeeds as a logic of induction in many contexts throughits use of several notions concerning inductive inference. Theyinclude Addition, through which low probabilities representdisbelief as opposed to ignorance; and Bayes property, whichcommits the calculus to a ‘refute and rescale’ dynamicsfor incorporating new evidence. These notions are independentand it is urged that they be employed selectively accordingto needs of the problem at hand. It is shown that neither isadapted to inductive inference concerning some indeterministicsystems.

1 Introduction

2 Failure of demonstrations of universality

2.1 Working backwards

2.2 The surface logic

3 Framework

3.1 The properties

3.2 Boundaries

3.2.1 Universalcomparability

3.2.2 Transitivity

3.2.3 Monotonicity

4 Addition

4.1 The property: disbelief versus ignorance

4.2Boundaries

5 Bayes property

5.1 The property

5.2 Bayes' theorem

5.3Boundaries

5.3.1 Dogmatism of the priors

5.3.2 Impossibilityof prior ignorance

5.3.3 Accommodation of virtues

6Real values

7 Sufficiency and independence

8 Illustrations

8.1 All properties retained

8.2 Bayes propertyonly retained

8.3 Induction without additivity and Bayes property

9Conclusion