The Transition to Reaching: Mapping Intention and Intrinsic Dynamics

The onset of directed reaching demarks the emergence of a qualitatively new skill. In this study we asked how intentional reaching arises from infants' ongoing, intrinsic movement dynamics, and how first reaches become successively adapted to the task. We observed 4 infants weekly in a standard reaching task and identified the week of first arm-extended reach, and the 2 weeks before and after onset. The infants first reached at ages ranging from 12 to 22 weeks, and they used different strategies to get the toy. 2 infants, whose spontaneous movements were large and vigorous, damped down their fast, forceful movements. The 2 quieter infants generated faster and more energetic movements to lift their arms. The infants modulated reaches in task-appropriate ways in the weeks following onset. Reaching emerges when infants can intentionally adjust the force and compliance of the arm, often using muscle coactivation. These results suggest that the infant central nervous system does not contain programs that detail hand trajectory, joint coordination, and muscle activation patterns. Rather, these patterns are the consequences of the natural dynamics of the system and the active exploration of the match between those dynamics and the task.     

Factors associated with middle and secondary students' perceived science competence

The aim of the present study was to gain a better understanding of students' perceived science competence by examining potentially related beliefs and perceptions in a diverse sample of middle and secondary students (N = 1289). Results of hierarchical regression analysis showed that students' perceived science competence was related to: (a) students' age, gender, and ethnicity; (b) students' mastery and performance–approach goals; (c) students' self‐perceptions of their ability to generate creative ideas (i.e., creative self‐efficacy); and (d) students' perceptions of teacher support and press (i.e., challenging academic demands). Of all these factors, creative self‐efficacy was found to have the strongest positive relationship with students' perceived science competence. Implications for subsequent research are discussed. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 800–814, 2007     

Elementary school teachers' beliefs about and perceptions of elementary school science,science reading,science textbooks,and supportive instructional factors

This article is a report of elementary school teachers' beliefs about and uses of text material in science. Survey results from 522 K-8 teachers from 299 schools in the United States, Puerto Rico and the Virgin Islands were analyzed along three dimensions: teacher attitudes toward teaching of reading in science; teacher beliefs and understanding about models of reading, factors influencing science reading and reading skills; and teacher use of various teaching strategies. Results suggest that teachers do not see reading science as different from any other narrative material. And though most agreed to the importance of having students do activities to support and enhance the use of text material, responses suggest that covering topics is still a concern for most elementary teachers.     

How to Create “Thriller” PowerPoints? in the Classroom!

PowerPoint^? presentations in academia have a reputation for being less than engaging in this era of learner-centered teaching. The Net Generation also presents a formidable challenge to using PowerPoint^?. Although the research on the basic elements is rather sparse, the multimedia elements of movement, music, and videos have a stronger evidence base and have the potential to increase learning. That research will be briefly reviewed. Since the use of multimedia as instructional tools has been largely ignored by the major sources on PowerPoint^?, this article presents 30 specific practical applications enabling faculty members to improve the effectiveness of their PowerPoint^? presentations and to grab and maintain students’ attention and foster deep learning.     

Diversifying the faculty across gender lines: Do trustees and administrators matter?

Our paper focuses on the role that the gender composition of the leaders of American colleges and universities - trustees, presidents, and provosts - play in influencing the rate at which academic institutions diversify their faculty across gender lines. Our analyses make use of institutional level panel data that we have collected for a large sample of American academic institutions.     

A preliminary investigation on diffusion through a layered system

We introduce layered systems such as the citations–citing authors–citing institutes–citing countries one. Diffusion of scientific ideas flows through such layered systems. Our contribution contains three main topics: a fractional counting system for the number of different units in a layer; the fractional number of items of the same type, i.e. in the same layer, over which ideas have been diffused; and the evenness of diffusion over different layers. In this way we construct a coherent system to measure the extent to which scientific ideas are diffused.     

Livelihood planning and career guidance in Palestine and the broader MENA region

It has often been stated that the Arab “world” is faced by a demographic challenge which is very different to that of many countries in the global North. As the Arab Spring has shown, youths across the region of the Middle East and North Africa (MENA) are keen to make a mark, and despite the internal conflicts and contests for power and influence, many young leaders are hoping to establish new forms of social cohesion which could lead to peace and prosperity within a globalised, interconnected world. This paper focuses on one aspect of the relationship between Arab youth and society, namely the difficult transition between formal education and employment. Drawing on, among other sources, a comparative study carried out across eight Arab states, the role which career education and guidance can play in the process is examined. This is followed by a case study of Palestine where, despite very challenging and difficult political and economic circumstances, significant and promising efforts have been made to help young people develop the life skills needed to engage with schooling in ways that do not only enhance learning, but also facilitate access to work and to self-employment. The paper argues that while career education and guidance (CEG) cannot possibly be expected to solve the disconnect between education and work, it does have a role to play in enhancing learning, in supporting transitions, and thus in contributing to both social and economic development goals.     

General Media and Media-Related

William L. Rivers, Theodore Peterson and Jay W. Jensen's The Mass Media and Modern Society (Rinehart Press, $8.95)

Ronald T. Farrar and John D. Stevens' (eds.) Mass Media and the National Experience (Harper & Row, price not known (paper back))

Bernard Rosenberg and David Manning White's Mass Culture Revisited (Van Nostrand, both hardback and paperback at same time–price not yet known)

Wilbur Schramm (ed.) Process and Effects of Mass Communications (University of Illinois Press, details unknown)

The Steranko History of Comics (Supergraphics Publications, 501 Spruce St., Reading, Pa. 19602, $3.00 paperback)     

Instructional/Educational Media

Public Telecommunications Review (bi-monthly at $12.50 per year in the U.S., Canada and Mexico, $17.00 Elsewhere) and Volume I:1 appeared in August 1973

S. Young Lee and Ronald J. Pedone's Summary Statistics of Public Television Licensees Fiscal Year 1972 (Washington: Corporation for Public Broadcasting, 1973—no price listed, paperback)

Frederick Williams, Geraldine Van Wart and Monty Stanford's Carrascolendas: National Evaluation of a Spanish/English Educational Television Series (Austin, Texas: School of Communication, Center for Communication Research of the University of Texas, June 1973—$6.00, paper)

Children's Television Workshop offers its 1973 Annual Report (1 Lincoln Plaza, N.Y. 10023) which discusses developments in Sesame Street, Electric Company     

Production Guides

Martin Clifford's Microphones: How They Work and How to Use Them (Blue Ridge Summit, Pa.: TAB Books, 1977—$8.95/ 5.95)

James Carroll and Ronald Sherriffs, TV Lighting Handbook ($12.95, 226 pp.)

Harry Kybett, The Complete Handbook of Videocassette Recorders ($9.95/5.95, 280 pp.)

Dave Ingram, The Complete Handbook of Slow-Scan TV ($14.95/9.95, 304 pp.)

G. Paul Smeyak's Broadcast News Writing (Columbus, Ohio: Grid Publishing, 1977—$7.95, paper)