Science literacy and academic identity formulation

The purpose of this article is to report findings from an ethnographic study that focused on the co‐development of science literacy and academic identity formulation within a third‐grade classroom. Our theoretical framework draws from sociocultural theory and studies of scientific literacy. Through analysis of classroom discourse, we identified opportunities afforded students to learn specific scientific knowledge and practices during a series of science investigations. The results of this study suggest that the collective practice of the scientific conversations and activities that took place within this classroom enabled students to engage in the construction of communal science knowledge through multiple textual forms. By examining the ways in which students contributed to the construction of scientific understanding, and then by examining their performances within and across events, we present evidence of the co‐development of students' academic identities and scientific literacy. Students' communication and participation in science during the investigations enabled them to learn the structure of the discipline by identifying and engaging in scientific activities. The intersection of academic identities with the development of scientific literacy provides a basis for considering specific ways to achieve scientific literacy for all students. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 1111–1144, 2004     

Current Issues and Perspectives on Second Language Learning of Science

In this paper we combine the findings from two recent studies relating to participation and attainment in school science – a re‐analysis of existing official data for England and a review of wider international research evidence in the literature relevant to the UK. Although the secondary data are drawn mainly from England, the comprehensiveness of these datasets, together with our inclusion of a review of international studies on maths and science participation provides a useful reference point for an international audience. The research was prompted by concerns over a reduction in the uptake of the physical sciences post‐16 and especially in higher education and interest in ways of encouraging the study of science by students from less prestigious socio‐economic status backgrounds. Such concerns are not unique to the UK. Using large‐scale official datasets we show that participation and attainment in science are stratified by socio‐economic status. Students from poorer families are less likely to take sciences at post‐16 than many other subjects and those who do are then less likely to obtain grades high enough to encourage further study of the subject. No conclusive evidence has been found to explain this satisfactorily. Plausible reasons suggested in the literature include the relative scarcity of local opportunities putting off those who do not wish to study away from home or the perceived time demands of studying science, and so the difficulties of combining part‐time study and part‐time work for those needing to continue earning while studying. Direct support from professional parents may also lead to greater participation in post‐16 science for students from higher SES. Perhaps the simplest explanation is that participation in science at any level is often predicated upon success at the previous educational stage. There are clear differences in science attainment at age 16 between students of differing backgrounds, which could explain the subsequent differential participation. However, these differences are not dissimilar to those for all subjects. The largest gap presented in the paper is between students eligible and not eligible for free school meals. We also show that these patterns appear early in the life of children. At ages 7 and 11, attainment in the three core subjects (English, maths and science) is negatively related to living in an area of deprivation. The paper ends with a discussion of suggestions for research, policy and practice emerging from this review of the evidence.     

Food‐Based Science Curriculum Increases 4th Graders Multidisciplinary Science Knowledge

Health professionals and policymakers are asking educators to place more emphasis on food and nutrition education. Integrating these topics into science curricula using hand‐on, food‐based activities may strengthen students’ understanding of science concepts. The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. Previous studies have shown that students experiencing the FoodMASTER curriculum were very excited about the activities, became increasingly interested in the subject matter of food, and were able to conduct scientific observations. The purpose of this study was to: (1) assess 4th graders food‐related multidisciplinary science knowledge, and (2) compare gains in food‐related science knowledge after implementation of an integrated, food‐based curriculum. During the 2009–2010 school year, FoodMASTER researchers implemented a hands‐on, food‐based intermediate curriculum in eighteen 4th grade classrooms in Ohio (n = 9) and North Carolina (n = 9). Sixteen classrooms in Ohio (n = 8) and North Carolina (n = 8), following their standard science curricula, served as comparison classrooms. Students completed a researcher‐developed science knowledge exam, consisting of 13 multiple‐choice questions administered pre‐ and post‐test. Only subjects with pre‐ and post‐test scores were entered into the sample (Intervention n = 343; Control n = 237). No significant differences were observed between groups at pre‐test. At post‐test, the intervention group scored (9.95 ± 2.00) significantly higher (p = 0.000) than the control group (8.84 ± 2.37) on a 13‐point scale. These findings suggest the FoodMASTER intermediate curriculum is more effective than a standard science curriculum in increasing students’ multidisciplinary science knowledge related to food.     

Assessing Girls' Reactions to Science Workshops

Many science education programs have recently been developed to increase girls' participation in science, however, few formal evaluations of these types of programs have been reported. The present research evaluated fifth grade girls' perceptions of a 1-day science education program. Students attended workshops describing different science fields. Study 1 revealed that attending the workshops increased students' interest in the specific field covered in the workshop. However, even after attending the workshops, students did not believe women typically entered those various fields. A second year evaluation revealed that most students agreed they had learned about individual tasks that scientists do in the various fields. However, significantly fewer believed they learned about educational requirements, problems women might face in the field, or how science can be used to help people. Results are discussed in terms of potential factors that workshop presenters might want to consider in future programs.     

Using Food Science Demonstrations to Engage Students of All Ages in Science,Technology, Engineering,and Mathematics (STEM)

Abstract: The overarching goal of the Science, Technology, Engineering, and Mathematics (STEM) Education Initiative is to foster effective STEM teaching and learning throughout the educational system at the local, state, and national levels, thereby producing science literate citizens and a capable STEM workforce. To contribute to achieving this goal, we have assembled six food science demonstrations for use at all educational levels and have presented these lessons to students at the elementary through higher education levels. The focus of this article is to share these food science demonstrations and our experiences using them so that others can use them for engaging students in STEM disciplines, through food science, at any educational level. Featured demonstrations include: (1) liquid nitrogen ice cream: a matter of changing phases, (2) seeing our senses work together, (3) whipping up the cream, (4) milk versus dark: what is the difference?, (5) counting calories by burning them, and (6) culinary spherification: the wonders of cross‐linking. Overall, our experience with using these demonstrations has been very positive. Students appear engaged in the learning process and love to consume the demonstration end products. Downloadable handouts containing demonstration details for each demonstration are available as supporting information.     

Science Content Courses: Workshop in Food Chemistry for 4th Grade School Teachers

ABSTRACT: A science content course in food chemistry was offered as a 4-day summer workshop from 1999 to 2001 to 4th grade school teachers in the Seattle School District. The objectives of the workshop were to increase the teachers' knowledge of food science, to perform simple experiments that could be used in the 4th grade classroom, and to help the teachers become more familiar with the scientific method. The workshop is described, and challenges associated with running the workshop from the instructors' perspective are discussed. Protocol for hands-on experiments used in the workshop, discussion questions/answers, and comments about each experiment are included in Appendices. The use of hands-on experiments that were easily adaptable to the 4th grade classroom and the comfortable atmosphere for discussion appear to have contributed the most to a successful workshop.     

Enhancement and Analysis of Science Question Level for Middle School Students

The effects of instruction and achievement on science question level for high and low science topic interests were investigated. Eight seventh‐grade classes were randomly assigned to two treatments: instruction and no instruction on researchable questioning. Each student completed the Middle School Students' Science Topic Interest Rating Scale (test‐retest reliability, r = .84); selected two topics in which she or he was least interested and two topics in which she or he was most interested; wrote questions for each topic; and took the Stanford Achievement Tests in reading, mathematics, and science. The questions were rated using the four levels described by the Middle School Students' Science Question Rating Scale (interrater reliability, r = .96). The scores for each question were averaged for two raters, then summed for each interest level for each student. The data were analyzed for main and interaction effects using general linear modeling procedures. Question level was modeled with one within‐subjects factor (science topic interest) and four between‐subjects factors (instruction and three achievement scores). The results indicate that students who received instruction outperformed those students who were not instructed; and high achievers in mathematics, reading, or science outperformed low achievers. There were no interaction effects. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 210–224, 2000     

Development and Evaluation of Food Safety Modules for K‐12 Science Education

Career and educational opportunities in food science and food safety are underrecognized by K‐12 students and educators. Additionally, misperceptions regarding nature of science understanding persist in K‐12 students despite being emphasized as an important component of science education for over 100 y. In an effort to increase awareness concerning career and educational opportunities in food science and food safety and to improve the nature of science understanding among K‐12 students, a series of problem‐based learning modules was developed and pilot tested with a total of 61 K‐12 students. Results of pre‐ and postevaluations and assessments indicated that (1) interest in science, food science, and food safety increased and (2) content knowledge related to the nature of science, food science, and food safety was improved. We further suggest that these modules provide opportunities for educators in traditional as well as extracurricular settings to demonstrate important concepts contained in the newly released Next Generation Science Standards.     

Democratic Practices in a Constructivist Science Classroom

The constructivist learning approach is suggested as a means for facilitating students’ learning of science and increasing their participation in this learning. Several studies have shown the contribution of this approach to the different aspects of students’ learning of science, though little research has examined the contribution of this approach to the democratic environment of the science classroom. The present study attempted to do so. 34 grade 5 science students studied the energy unit of the science book using the V-shape strategy, and 38 grade 5 science students studied the same unit without using the strategy. The research results show that students who used the V-shape strategy had significantly higher scores in democratic practices than students who did not use the strategy. Moreover, the democratic practices in the science classroom were not influenced significantly by the independent variables (science ability, general ability, and preferred subject). The results of the current study also show that, in the experimental group, only the correlation between involvement and freedom was significant, while in the control group, all of the correlations among involvement, freedom, and equality were significant.     

A View of Oral Communication Activities in Food Science From the Perspective of a Communication Researcher

Food science researchers have pronounced the Institute of Food Technologists Success Skills to be the most important competency mastered by graduates entering the work force. Much of the content and outcomes of the Success Skills pertains to oral communication skills of public speaking and interpersonal and group communication. This qualitative study reports the results of an examination of oral communication activities in the classes of 9 faculty in the food science program at Iowa State Univ. The findings revealed communication activities in the classes that support the Success Skills oral communication mandates; however, the food science faculty did not explicitly teach these skills. Faculty assumed the students would acquire proficiency in oral communication through participation in disciplinary activities that required them to practice the skills. A situated communication framework cautions communication researchers to honor the oral communication traditions in other disciplines. Still, the practice of preparing students to communicate in professional contexts without formal instruction raises 2 questions from the perspective of a communication researcher: first, are students aware of the communication skills they applied in classroom activities? Second, are students able to transfer communication skills to other classes and, more importantly to professional practice, when they graduate, as a result of this approach? The discussion suggests exercises that direct students’ attention to the specific skill sets inherent in the oral communication activities in the Success Skills while enabling faculty to maintain the communication traditions of food science as they prepare students for professional practice.     

Science identity trajectories throughout school visits to a science museum

Research has repeatedly demonstrated how informal learning environments afford science-identity development by fostering a broader array of interactions and recognizing more varied participation modes and roles, as compared to the classroom. Thus, science teachers are encouraged to take students to field trips in informal environments, including science museums. However, the question of whether and how informal environments indeed support science identities also in a schooling context (i.e., in field trips) has not yet been explored. This case study addresses this question by analyzing identity trajectories of three students throughout six school visits to an Israeli science museum. We observed and recorded these students in the museum over the course of 3 years (fourth to sixth grade). We also visited their school and interviewed them after each visit. Drawing on a sociocultural interactional approach to identity, we analyzed 18 hr of video and audio recordings, tracking the participation of the three students across time and contexts, comparing between the students, points in time and settings, including structured (museum lab), semi-structured (riddle-solving activities in exhibition halls), and unstructured settings (free exploration). We employed linguistic ethnographic methods and microanalysis to examine the ways in which the students participated and their positioning by self and others. While we found differences between settings within the museum, overall, the findings show that the museum reproduced the school's interaction, positioning, and roles. The “(non)science person” in school was also the “(non)science person” in the museum, and thus, the museum visits did not appear to shift identity trajectories. These findings challenge the premise that informal environments support the development of science identities also in a schooling context and call for a more critical view of such fieldtrips in terms of their pedagogical and physical design, facilitation approach, and consideration of peers' social interaction.     

The influence of early science experience in kindergarten on children's immediate and later science achievement: Evidence from the early childhood longitudinal study

This study explores the impacts of selected early science experiences in kindergarten (frequency and duration of teachers' teaching of science, availability of sand/water table and science areas, and children's participation in cooking and science equipment activities) on children's science achievement in kindergarten and third grade using data for 8,642 children from the Early Childhood Longitudinal Study‐Kindergarten cohort (ECLS‐K). A theoretical model that depicts the relationships between the study variables was developed and tested using structural equation modeling. Results demonstrated that availability of science materials in kindergarten classrooms facilitated teachers' teaching of science and children's participation in science activities. Likewise, the frequency and the duration of kindergarten science teaching was a significant predictor of children's science activities but not of the children's end of kindergarten science achievement scores. Children's engagement with science activities that involved using science equipment also was not a significant predictor of their end of kindergarten science achievement. However, children's participation in cooking activities was. Children's prior knowledge, motivation, socio‐economic status, and gender were all statistically significant predictors of their science achievement at the end of kindergarten and end of third grade. Results of this study indicate that early science experiences provided in kindergarten are not strong predictors of children's immediate and later science achievement. Findings of the study suggest that the limited time and nature of science instruction might be related to the limited effect of the science experiences. Implications for teacher education programs and educational policy development are discussed. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 48: 217–235, 2011     

Teaching physics in junior high school: crossing the borders of fear

Israeli junior high‐school science teachers usually have a background in biology, and their knowledge of physics is limited. We show that by improving teachers' qualitative understanding it is possible to increase their confidence and willingness to teach physics. We conducted three‐day workshops for teachers (n = 92), which were followed by ongoing activities and support. The teacher workshops were based on a new qualitative approach that we developed for studying mechanics, which has been shown to be effective with students. A study of teachers who had not participated in the workshop shows that they had the same conceptual difficulties as their students. A comparison of pre‐ and post‐workshop questionnaires indicates that the participating teachers gained self‐confidence in their ability to explain everyday phenomena, changed their views about the relevance and interest of physics to the students and were willing to implement the method in their classes.     

Science achievement of english language learners in urban elementary schools: Results of a first‐year professional development intervention

This study is part of a 5‐year professional development intervention aimed at improving science and literacy achievement of English language learners (or ELL students) in urban elementary schools within an environment increasingly driven by high‐stakes testing and accountability. Specifically, the study examined science achievement at the end of the first‐year implementation of the professional development intervention that consisted of curriculum units and teacher workshops. The study involved 1,134 third‐grade students at seven treatment schools and 966 third‐grade students at eight comparison schools. The results led to three main findings. First, treatment students displayed a statistically significant increase in science achievement. Second, there was no statistically significant difference in achievement gains between students at English to Speakers of Other Language (ESOL) levels 1 to 4 and students who had exited from ESOL or never been in ESOL. Similarly, there was no significant difference in achievement gains between students who had been retained on the basis of statewide reading test scores and students who had never been retained. Third, treatment students showed a higher score on a statewide mathematics test, particularly on the measurement strand emphasized in the intervention, than comparison students. The results indicate that through our professional development intervention, ELL students and others in the intervention learned to think and reason scientifically while also performing well on high‐stakes testing. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 45: 31–52, 2008     

A Cross-grade Comparison to Examine the Context Effect on the Relationships Among Family Resources,School Climate,Learning Participation,Science Attitude,and Science Achievement Based on TIMSS 2003 in Taiwan

This study aimed to examine whether the relationships among family resources, school climate, learning participation, science attitude, and science achievement are different between primary school students and junior high school students within one educational system. The subjects included 4,181 Grade 4 students and 5,074 Grade 8 students who participated in TIMSS 2003 in Taiwan. Using structural equation modeling, the results showed that family resources had significant positive effects for both groups of learners. Furthermore, a context effect for the structural relationship between school climate, learning participation, and science achievement was revealed. In the primary school context, Grade 4 students who perceived positive school climate participated in school activities more actively, and had better science performance. However, in the secondary school context, learning participation had a negative impact and led to lower science achievement. The implications about this result in relation to the characteristics of the two educational contexts in Taiwan were further discussed.     

Reflections of Educators in Pursuit of Inclusive Science Classrooms

General education science teachers are meeting increasingly diverse classrooms of students that include students with disabilities. A one-week, summer, residential workshop was offered to interested science and special educators who worked through lab experiments one-on-one with students with physical or sensory disabilities (grades 7-12). To determine how effective this professional development workshop was at raising disability awareness and providing teacher training in inclusive science teaching practices, a combination of survey and reflective journal entries was used to monitor participants’ experience. Here we discuss the findings from this benchmark study and discuss how others might adapt this professional development model for use by schools interested in moving toward inclusive practices.     

Emotionally Intense Science Activities

Science activities that evoke positive emotional responses make a difference to students’ emotional experience of science. In this study, we explored 8th Grade students’ discrete emotions expressed during science activities in a unit on Energy. Multiple data sources including classroom videos, interviews and emotion diaries completed at the end of each lesson were analysed to identify individual student's emotions. Results from two representative students are presented as case studies. Using a theoretical perspective drawn from theories of emotions founded in sociology, two assertions emerged. First, during the demonstration activity, students experienced the emotions of wonder and surprise; second, during a laboratory activity, students experienced the intense positive emotions of happiness/joy. Characteristics of these activities that contributed to students’ positive experiences are highlighted. The study found that choosing activities that evoked strong positive emotional experiences, focused students’ attention on the phenomenon they were learning, and the activities were recalled positively. Furthermore, such positive experiences may contribute to students’ interest and engagement in science and longer term memorability. Finally, implications for science teachers and pre-service teacher education are suggested.     

Fostering an Interest in Science in a Typically Underrepresented Population

ABSTRACT:  This "case study" details how food science was introduced into the classrooms of a typically underrepresented population. James Sarakatsannis, an 8th grade physical science teacher, was planning a unit that would use fast food to teach science to his classes, when he came across the Institute of Food Technologists (IFT) website and a wealth of information available to teachers. Along with the valuable materials James found on the website to teach food science, he also found the "Find a Food Scientist" tool and invited 3 local food scientists into his classroom at John Philip Sousa Middle School in the inner city of Washington, D.C., where many of his students represent a typically underrepresented population in the field of food science. Food was a common medium that all of his students were familiar with and had an interest in, and it turned out to be a great tool to discuss various physical science topics in the classroom. The local food scientist visits were an excellent supplement to the topics he was already covering with the students in class. Many students developed a greater interest in science in general after the unit on food science. The unit also may have planted the seed for an education or career in food science somewhere down the line for the 70 13- to 16-year-old students in James's 2 8th grade physical science classes.     

Extending science beyond the classroom door: Learning from students' experiences with the Choice,Control and Change (C3) curriculum

This article describes the experiences of seventh‐grade students living in high poverty areas of New York City who participated in the Choice, Control and Change (C3) science curriculum. Data were collected from eight case study students in the form of individual interviews, classroom observations, and student artifacts. Analysis of these data revealed that students were able to extend their C3 science understandings beyond the classroom door by developing and expressing science agency in the following ways: (1) critically analyze the conditions of their food environment, (2) purposefully make healthier choices, and (3) expand the food and activity options available to themselves and others. Through participation in the C3 curriculum, and the science content and practices addressed therein, students began to view their worlds with a more critical mindset and to devise ways to transform themselves and the conditions of their own and others' lives. Based on the findings, we propose taking a closer look at how we might create meaningful and relevant learning opportunities for students through connecting school science with issues of personal and social significance in students' lives outside of school. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 49: 244–269, 2012     

A National Science Fair: Exhibiting support for the knowledge economy

Student‐directed, open‐ended scientific investigations and invention projects may serve to deepen and broaden students’ scientific and technological literacy, and, in so doing, enable them to succeed in democracies greatly affected by processes and products of science and technology. Science fairs, events at which student‐led projects are evaluated and celebrated, could contribute to such positive personal and social outcomes. Qualitative data drawn from a national science fair over succeeding years indicate (after analyses of largely qualitative data, using constant comparative methods) that, apart from positive outcomes regarding science literacy, there may be some significant issues about the fair that warrant critical review. It is apparent from these studies that there are issues of access, image, and recruitment associated with the fair. Qualification for participation in the fair appears to favour students from advantaged, resource‐rich backgrounds. Although these students do benefit in a number of ways from the fair experience, it is apparent that science fairs also greatly benefit sponsors—who can, in a sense, use science fairs for promotional and recruitment purposes. These findings and claims raised, for us, some important questions possibly having implications for science education, and for society more generally.