Science Professional Learning Communities: Beyond a singular view of teacher professional development

Professional Learning Communities (PLCs) are frequently being used as a vehicle to transform science education. This study explored elementary teachers' perceptions about the impact of participating in a science PLC on their own professional development. With the use of The Science Professional Learning Communities Survey and a semi-structured interview protocol, elementary teachers' perceptions of the goals of science PLCs, the constraints and benefits of participation in PLCs, and reported differences in the impact of PLC participation on novice and experienced teachers were examined. Sixty-five elementary teachers who participated in a science PLC were surveyed about their experiences, and a subsample of 16 teachers was interviewed. Results showed that most of the teachers reported their science PLC emphasized sharing ideas with other teachers as well as working to improve students' science standardized test scores. Teachers noted that the PLCs had impacted their science assessment practices as well as their lesson planning. However, a majority of the participants reported a differential impact of PLCs depending on a teacher's level of experience. PLCs were reported as being more beneficial to new teachers than experienced teachers. The interview results demonstrated that there were often competing goals and in some cases a loss of autonomy in planning science lessons. A significant concern was the impact of problematic interpersonal relationships and communication styles on the group functioning. The role of the PLC in addressing issues related to obtaining science resources and enhancing science content knowledge for elementary science teachers is discussed.     

Scale and the evolutionarily based approximate number system: an exploratory study

ABSTRACT

Crosscutting concepts such as scale, proportion, and quantity are recognised by U.S. science standards as a potential vehicle for students to integrate their scientific and mathematical knowledge; yet, U.S. students and adults trail their international peers in scale and measurement estimation. Culturally based knowledge of scale such as measurement units may be built on evolutionarily-based systems of number such as the approximate number system (ANS), which processes approximate representations of numerical magnitude. ANS is related to mathematical achievement in pre-school and early elementary students, but there is little research on ANS among older students or in science-related areas such as scale. Here, we investigate the relationship between ANS precision in public school U.S. seventh graders and their accuracy estimating the length of standard units of measurement in SI and U.S. customary units. We also explored the relationship between ANS and science and mathematics achievement. Accuracy estimating the metre was positively and significantly related to ANS precision. Mathematics achievement, science achievement, and accuracy estimating other units were not significantly related to ANS. We thus suggest that ANS precision may be related to mathematics understanding beyond arithmetic, beyond the early school years, and to the crosscutting concepts of scale, proportion, and quantity.     

Perceptions and Practices: Biology graduate teaching assistants’ framing of a controversial socioscientific issue

Graduate teaching assistants (GTAs) are gaining increasing responsibility for the instruction of undergraduate science students, yet little is known about their beliefs about science pedagogy or subsequent classroom practices. This study looked at six GTAs who were primary instructors in an introductory biology laboratory course. Teaching assistants taught a lesson about the potential social, health, and environmental impacts of genetically modified crops. Through classroom observations and in‐depth interviews, the researchers examined how instructors chose to frame their lessons and what GTAs perceived as important for students to know about this particular socioscientific issue (SSI). Results showed a disconnect between the relatively mature conceptualizations of effective SSI instruction that emerged during interviews and classroom practice.     

Too emotional to be capable? The changing nature of emotion work in definitions of ‘capable teaching’

This article uses the concept of emotional labour to understand some of the changes that are ongoing in the teaching profession. While research has explored the impact of the new performance culture upon teachers’ work and identified a marginalisation of the caring and emotional aspects of teaching, the concept of emotional labour allows us to extend this argument. Using interviews with teachers who have had their capability questioned, in the majority of cases through the threat or implementation of capability procedures, this article draws upon newer conceptualisations of emotional labour to analyse some of the changes teachers are experiencing with the introduction of new accountability and performance systems. Utilising Bolton’s typology of different forms of emotion management in the workplace, we argue it is possible to recognise the distinctiveness of the emotion work carried out by teachers and identify why teachers’ emotion work is particularly vulnerable to the educational reforms associated with the standards agenda. We suggest that not only is there a shift away from the caring aspects of teaching, but also the emotional work teachers are expected to perform is becoming increasingly prescribed in ways that mirror the management of emotional labour carried out in the service sector. This is particularly the case in the primary sector where the majority of teachers in the study were working.     

Book reviews

Schwandt, Thomas A. (1997) Qualitative Inquiry: a Dictionary of Terms. Thousand Oaks, CA: SAGE Publications, Inc. 183 pp. $ 23.95 ISBN‐0–7619–0254–6

VanTassel‐Baska, J. (1998). Excellence in Educating Gifted and Talented Learners, Third Edition with chapters by Camilla Persson Benbow, John F. Feldhusen, Kenneth Seeley, and Linda Kreger Silverman. Denver, CO: Love Publishing Co. (532pp., $58.00 hb, ISBN 0–89108–255–7.

Moore, D.P. and Buttner, E.H. (1997). Women entrepreneurs: Moving beyond the glass ceiling. Thousand Oaks, CA: Sage Publications, Inc. (262 pp., $19.95 pb, ISBN 0–7619–0464–6)

Tomlinson, C. A. (1999). The differentiated classroom: Responding to the needs of all learners. Alexandria, VA: Association for Supervision and Curriculum Development (132 pp., $21.95 pb, ISBN 0–87120–342–1).     

How Constructivist-Based Teaching Influences Students Learning Science

The purpose of this article is to provide details about the beneficial processes the constructivist pedagogy has in the area of teaching science. No Child Left Behind could possibly cause detrimental effects to the science classroom and the constructivist teacher, so this essay tells how constructivist-based teaching influences students and their learning of science.     

Feel American,Watch American,Eat American? Remote Acculturation,TV, and Nutrition Among Adolescent–Mother Dyads in Jamaica

Globalization prompts remote acculturation toward U.S. culture in Jamaica; this study used a bioecological systems approach to examine its proximal impact on nutrition through U.S. cable TV consumption, and maternal influences in the home. Overall, 330 randomly selected adolescent–mother dyads from schools in Kingston, Jamaica (M_{adolescent_age} = 13.8 years, SD_{adolescent_age} = 1.8) completed questionnaires reporting American identity and behavioral preferences, daily time spent watching U.S.‐produced TV programs, and frequency of eating unhealthy foods. Actor–partner interdependence models revealed that girls’ American identity/behavior directly predicted their unhealthy eating, whereas girls’ mothers and boys’ American identity/behavior indirectly predicted unhealthy eating as mediated by their U.S. TV hours. Additionally, mothers’ American identity/behavior predicted daughters’ unhealthy eating as mediated by mothers’ U.S. TV hours. Remote acculturation theory may facilitate more targeted research and prevention/intervention.