Trying to Make a Lever Work at Ages 1 to 4: The Development of "Functions" (Logico-mathematical Thinking)

To find out if children could make functions before age 4, 73 children aged 1 to 4 were encouraged to imitate the use of a lever to make a beanbag fly up. Functions are mental relationships that preoperational children can make between 2 things at a time in a unidirectional way (Piaget, Grize, Szeminska, &; Bang, 1968 Piaget, J., Grize, J.-B., Szeminska, A. and Bang, V. B. 1977. Epistemology and psychology of functions, Boston: Dreidel. (Original work published 1968)[Crossref] , [Google Scholar]/1977). The child's construction of the following 3 functions was hypothesized and confirmed: (a) As a function of being pushed down, the up end of the board (the lever) goes down; (b) as a function of this descent, the down end of the board goes up; and (c) as a function of this ascent of the board, the beanbag flies up. Three developmental levels were found, and educational implications are discussed.     

In the service of children: An open letter to global educators an editorial

The “art of service” is a natural part of human development in a world community.     

A growing trend toward knowledge work in Canada

This paper answers three questions related to the growing trend toward knowledge occupations in Canada: (i) What was the magnitude of the trend between 1971 and 1996? (ii) Was the trend a widespread phenomenon or was it restricted to specific industries? (iii) What are the proximate causes of the trends? Using five censuses—1971, 1981, 1986, 1991, 1996—and the input/output (I/O) data, the paper provides evidence that the Canadian economy is becoming increasingly knowledge-based, although the upgrading trends differ across knowledge occupations. Moreover, we find that this phenomenon is spread across all industrial sectors. Finally, using a decomposition analysis borrowed from Wolff and Baumol, three factors—the substitution effect, the productivity-lag effect and the demand effect—have been examined in order to shed some light on these trends. We find that these effects vary according to the nature of the knowledge involved in these different groups of occupations, thus reflecting not only the importance of the technological change ‘skill bias’ but also the increasing complexity of controlling and managing the new economic activities.     

The university of the future: Stiegler after Derrida

Abstract

Higher education has not been spared from the effects of the disruptive aspects of technology. MOOCs, teach bots, virtual learning platforms, and Wikipedia are among technics marking a digital transformation of knowledge. The question of the university, the foundation of its authority and purpose is more than timely; it is urgent to any future philosophy of higher education. Will the university survive in the future and if so, for what purpose? We examine two philosophers, Jacques Derrida and Bernard Stiegler, who take on this challenge. Derrida, writing at ‘the scene of teaching’, proposes new humanities for a university ‘without condition’, one with increasing autonomy to democratize it further. Stiegler takes issue with him on the conditions of the university of the future. Stiegler offers not an ‘anti-Derridian discourse’ but a ‘deconstruction of a deconstruction’ of Derrida. Stiegler’s critique of Derrida on the role of the professoriate and the university of the future expand the fissure between them. In this article, we argue that Stiegler’s reading of Derrida points to the university not as an anachronistic way of knowing displaced by the digital revolution but as vital to a politics of the spirit in a democratic future.     

Piaget's theory and the teaching of arithmetic

Conclusion For centuries, education has been a folk art based on tradition and opinions called philosophies. With the advent of associationism and behaviourism, however, education began to enter a scientific era. Now that we have Piaget's constructivism—a more adequate scientific theory—it is time to change the way arithmetic is taught in elementary schools.I hope educators and researchers in other countries will also experiment in classrooms to test the hypothesis that I tested. Because logico-mathematical knowledge is universal and the same in all cultures, I expect the same kinds of results in other countries.Constructivist teaching is much harder than the teaching of algorithms and correcting of worksheets. However, in spite of this difficulty, an increasing number of teachers in the United States are becoming convinced of the truth of Piaget's constructivism. When these teachers encounter children's originality and intelligence that they have not observed before, they are truly overjoyed. Once they have seen the possibility that exists in each child, these teachers do not think of going back to their old ways of teaching.Constance Kamii studied under Jean Piaget, Barbel Inhelder and Hermina Sinclair in the late 1960s and during the 1970s and subsequently developed a pre-school curriculum based on Piaget's theory. She later extended this work to mathematics education in the first three grades and is now working at the fourth and fifth grade level. She has taught at the University of Illinois, Chicago, and the University of Geneva, and is now a professor of education at the University of Alabama, Birmingham, in the United States.I am grateful to Janice K. Ewing for critically reading a draft of this paper and making helpful suggestions.     

Anatomical Sciences Education Vol. 4, Issue 5, 2011 Cover Image

Drawing session from an art and anatomy workshop for medical students at the University of Texas Health Science Center at San Antonio and art students at the University of Texas at San Antonio. A current trend in medical education is to integrate aspects of the humanities into the medical school curriculum. In this issue of ASE, Dr. Charleen Moore and her colleagues describe an art and anatomy workshop that uses drawing exercises to increase observational skills, to foster the development of humanistic sensitivities, and to emphasize the emotional aspects of dealing with mortality. (Photograph by Penelope Borchers).     

Victimization during childhood and revictimization in dating relationships in adolescent girls

OBJECTIVE: Various experiences with violence during childhood and adolescence (parental violence, exposure to marital violence, sexual abuse within and outside the family, sexual harassment at school, community violence, involvement with violent or victimized peers, and previous dating violence) are examined as potential risk factors for psychological, physical, and sexual revictimization in adolescent girls' dating relationships. METHOD: A group of 917 teenage girls (mean age = 16.3) were recruited in 5 high schools located in low to middle socioeconomic areas. Participants were in the 10th and 11th grades, and each completed a self-administered questionnaire. Analyses were performed on the 622 participants who reported having at least one dating partner in the last 12 months. RESULTS: Prevalence rates for past victimization experiences varied from 13% to 43%. Regarding last-year dating victimization, prevalence rates varied from 25% to 37%, depending on the type of violence sustained. Results suggest that extrafamilial experiences with violence are stronger risk factors for recent dating victimization than intrafamilial experiences, especially being sexually harassed by male peers at school and being involved with violent or victimized peers during the year preceding the survey. However, it is important to differentiate between girls who are repeatedly victims of violence in a single, long-term relationship (repeat dating victimization), and girls who are revictimized by different partners (dating revictimization), the former sustaining more frequent physical and psychological violence than the latter. CONCLUSIONS: Findings underline the importance of early prevention of adolescent dating violence. Prevention programs should especially address extrafamilial experiences with violence as important risk factors for victimization in dating relationships, and teach girls strategies to break up abusive relationships.     

An explicit multicomponent alphabet writing instruction program in grade 1 to improve writing skills

European Journal of Psychology of Education - Learning to write involves the acquisition of several skills, not the least of which is handwriting. Indeed, studies in cognitive psychology have...     

Place-Based Stewardship Education: Nurturing Aspirations to Protect the Rural Commons

In this mixed-methods study, we examine the potential of place-based stewardship education (PBSE) for nurturing rural students’ community attachment and aspirations to contribute to the preservation of the environmental “commons.” Analyzing pre- and post-experience surveys (n = 240) and open-ended responses (n = 275) collected from middle school students in a Northeast Michigan school district, we found significant increases in students’ environmental sensitivity, environmentally responsible behaviors, community attachment, and confidence in their capacities for civic action. Analyses of open-ended responses pointed to the potential of PBSE to nurture students’ identification with their community and to increase their commitment to stewardship of their community's natural resources. This study makes a unique contribution to the literature on rural schools by focusing on the environmental commons and younger generations’ commitments to preserve it as an asset of rural communities. By linking students’ learning with collective action to preserve the environmental commons, PBSE can expand students’ aspirations for the kind of world they want to live in and the roles they might play in it.     

Metabolic cost of stride rate, resistance, and combined use of arms and legs on the elliptical trainer

We measured the effects of stride rate, resistance, and combined arm-leg use on energy expenditure during elliptical trainer exercise and assessed the accuracy of the manufacturer's energy expenditure calculations. Twenty-six men and women (M age = 29 years, SD = 8; M body weight = 73. 0 kg, SD = 15.2) participated. Twenty-two participants performed two tests, one without the arm poles (leg-only) and the other with arm poles (combined arm-leg). The other 4 participants performed one test without the arm poles. Both tests consisted of six 5-min stages (two stride rates, 110 and 134 stridesmin-1, and three resistance settings: 2, 5, and 8). Steady-state oxygen uptake (VO2), minute ventilation (VE), heart rate (HR) and rating of perceived exertion (RPE) were measured. Repeated measures analysis of variance determined higher (p <. 001) VO2, VE, and RPE, but not HR, during combined arm-leg versus leg-only exercise at any given intensity. Increases in stride rate and resistance increased VO2, VE, RPE, and HR with the greatest effect on VE and HR from Levels 5 to 8. The manufacturer's calculated energy expenditure was overestimated during both tests. Although the oxygen cost for elliptical trainer exercise was calculated to be approximately 0.1 mlxkg(-1) per stride and 0.7 mlxkg(-1) min-1 per resistance level, VO2 varied widely among individuals, possibly due to differences in experience using the elliptical trainer gender, and body composition. The elliptical trainer offers (a) a variety of intensities appropriate for most individuals and (b) both arm and leg exercise. Due to the wide variability in VO2, predicting the metabolic cost during elliptical trainer exercise for an individual is not appropriate.