The necessity of each phase of the learning cycle in teaching high school physics

The learning cycle is a method of teaching—it is also a curriculum organization principle and is derived directly from the mental functioning model invented by Piaget. Although Jean Piaget contributed to the formation of the learning cycle (Piaget, 1973), its present structure has to be attributed to Dr. Robert Karplus and the persons who developed the materials of the Science Curriculum Improvement Study (SCIS). It was through the SCIS activities that many of us learned how to develop curricula and teach with the learning cycle. The learning cycle is built upon the premise that three distinct phases are necessary in developing understanding of a concept, that those phases have a definite sequence, and each phase has a definite structure or form. The research done in testing the form variable has already been reported in this journal (Renner, Abraham, & Birnie, 1985). This report explores whether or not each learning-cycle phase is necessary in learning a concept.     

The Impact of an SES-Based Model on a College's Undergraduate Admissions Outcomes

In Grutter vs. Bollinger, the U.S. Supreme Court ruled that the use of race as one factor, among many in admissions decisions is constitutional. It is not known, however, whether future legal opinions will continue to uphold the use of affirmative action policies. Some have argued that class-based preferences can achieve many of the same goals as in affirmative action while being more likely to withstand legal challenges. To date, no empirical studies have been conducted on the potential impact of a class-based admissions policy if implemented at an undergraduate institution. This paper reports on a study at a selective public college and compares a number of outcomes under three admissions models: the original admissions decisions, a purely academic model, and an socio-economic status (SES)-based model. The findings showed that use of the SES-based model would have led to a more academically qualified class than in the original admitted class while maintaining substantially greater student diversity that was found under the academic model. An admissions policy based on preferences for socio-economically disadvantaged applicants appears to hold promise for other colleges and universities with similar institutional and applicant characteristics. The ideas and research design reported in this paper are based on the doctoral dissertation study of the second author, Undergraduate Admissions Models Incorporating Socioeconomic Factors (Johnson, 2000).     

How to decide how to decide

This article attempts to characterize the general problem of selecting methods for decision-making. The traditional rational approach to choice is from economics, which offers expected-value maximization. The task environment of decision method selection, however, does not seem to provide the data necessary for carrying out the expected-value calculations. Our approach uses methods from the field of cognitive science. We develop the notion of domain size in fields such as chess, borrowing the concept of a chunk from human memory. We then develop a heuristic rule for choiceamongmethods. We propose this rule as one of many possible rules.     

The nexus between college choice and persistence

Initial student commitments have long been considered an influence on persistence, but the reasons why students choose to attend a college have seldom been considered as dimensions of initial commitments that could influence persistence processes and outcomes. This study used NPSAS-87 to examine the influence of finance-related reasons for choosing a college on persistence decisions. The findings include (1) finance-related choices have direct and indirect influences on whether students persist in college; and (2) market-based, monetary measures of financial aid, tuition costs, housing costs, and other living costs have a substantial direct effect on persistence.     

Humanizing the use of technology in education: A re-examination

Educators are currently attempting to integrate computers into the classroom, in order to humanize their use. The strategies that have been adopted, however, are primarily logistical and ignore the philosophy that underpins this technology. It is argued in this paper that educational technology will not be humanized until it is understood to be sustained by a philosophy other than technological rationality, and thus is provided with a human base. The life-world (Lebenswelt) is identified as a proper foundation for technology, because technological rationality is illustrated to be a modality of human expression. When this is the case, technology is placed in the service of humankind, for it cannot be conceived as the genesis of personal freedom.

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Zusammenfassung Gegenwärtig sind Pädagogen um die Integration von Computern ins Klassenzimmer bemüht, um deren Gebrauch zu humanisieren. Die dabei angewandten Strategien sind jedoch primär logistisch und ignorieren die theoretischen Voraussetzungen, auf die sich diese Technologie stützt. In diesem Bericht wird argumentiert, daß die Bildungstechnologie so lange nicht humanisiert wird, bis sie nicht in einem anderen Sinn als dem der technologischen Rationalität verbunden wird und auf eine humane Grundlage gestellt ist. Die Lebenswelt wird als ein wahres Fundament der Technologie identifiziert, da technologische Rationalität als eine Modalität menschlichen Ausdrucks dargestellt wird. Wenn dies der Fall ist, wird die Technologie in den Dienst der Menschheit gestellt, da sie nicht als Nemesis persönlicher Freiheit angesehen werden kann.

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Résumé Les pédagogues, aujourd'hui, tentent de faire entrer l'ordinateur dans la salle de classe, afin de ramener son utilisation à l'échelle humaine. Cependant, les stratégies adoptées demeurent de l'ordre de la logistique et ignore tout de la philosophie qui étaye cette technologie. Dans cet article, il est argué que l'on ne saurait humaniser la technologie au sein de l'enseignement, tant qu'il n'est pas entendu qu'une philosophie autre que la rationalité technologique la sous-tend, la dotant ainsi d'un fondement humain; l'environnement naturel (Lebenswelt) constitue la véritable base de la technologie car la rationalité ne représente qu'une modalité de l'expression humaine. Dans ce cas, la technologie est placée au service de l'humanité et ne saurait être conçue comme sanction de la liberté individuelle.

     

Approaches to Studying and Perceptions of the Academic Environment in Students Following Problem-Based and Subject-Based Curricula

To investigate the effects of different kinds of curriculum, the Course Experience Questionnaire (CEQ) and a short form of the Approaches to Studying Inventory (ASI) were administered to 225 2nd-year students at six different schools of occupational therapy. Their curricula were classified as problem-based, subject-based or hybrid. Their scores on the scales of the CEQ and ASI were closely related, insofar as they shared more than half of their respective variance. Problem-based curricula were associated with higher scores on the scales of the CEQ concerned with appropriate assessment and emphasis on independence. With the ASI, problem-based curricula were associated with lower scores on all of the scales concerned with a reproducing orientation, and with higher scores on the scale concerned with a deep approach. These findings suggest that the implementation of a problem-based curriculum has desirable effects on the quality of learning, and these are at least in part mediated by students' perceptions of their academic environment.