High school students’ decision making about sustainability

This study examined decision making in an urban US high school classroom in which tenth‐grade students analyzed scientific evidence about current issues of sustainability, technology and society. A full‐year course, called Science and Sustainability, was used in both groups, and a computer program, called Convince Me, provided scaffolding for making evidence‐based decisions for one group. During the course of instruction, both the groups completed open‐ended written assessments. Limited student progress, in using evidence to support claims and in weighing benefits and drawbacks, was demonstrated. The Convince Me group showed more significant gains than the Science and Sustainability group alone. Implications for instruction are discussed.     

Epistemic Beliefs and Conceptual Understanding in Biotechnology: A Case Study

The purpose of this investigation was to explore students’ epistemic beliefs and conceptual understanding of biotechnology. Epistemic beliefs can influence reasoning, how individuals evaluate information, and informed decision making abilities. These skills are important for an informed citizenry that will participate in debates regarding areas in science such as biotechnology. We report on an in-depth case study analysis of three undergraduate, non-science majors in a biotechnology course designed for non-biochemistry majors. We selected participants who performed above average and below average on the first in-class exam. Data from multiple sources—interviews, exams, and a concept instrument—were used to construct (a) individual profiles and (b) a cross-case analysis of our participants’ conceptual development and epistemic beliefs from two different theoretical perspectives—Women’s Ways of Knowing and the Reflective Judgment Model. Two independent trained researchers coded all case records independently for both theoretical perspectives, with resultant initial Cohen’s kappa values above .715 (substantial agreement), and then reached consensus on the codes. Results indicate that a student with more sophisticated epistemology demonstrated greater conceptual understandings at the end of the course than a student with less sophisticated epistemology, even though the latter performed higher initially. Also a student with a less sophisticated epistemology and low initial conceptual performance does not demonstrate gains in their overall conceptual understanding. Results suggest the need for instructional interventions fostering epistemological development of learners in order to facilitate their conceptual growth.     

Preparing Community-Engaged Teachers

The goals of teacher education must evolve beyond the teaching of strategies and methods toward a process for beginning teachers' critical interrogation of their social locations and the ways they engage with the realities of teaching and learning. One way that this is accomplished is by incorporating opportunities for community engagement beyond classroom walls in ways that employ teaching practicum experiences in K–12 classrooms. This article describes one teacher educator's experiences preparing secondary English and literacy preservice teachers enrolled in a Teaching Writing Course where students participate in the coordination and facilitation of a community writing event for local middle and high school students. Preservice teachers witnessed writing instruction and youth writing practices that thrived in an educational partnership among multiple stakeholders, including students, parents, teachers, administrators, university professors, and community youth liaisons. Then I share examples of students' reflections post-Writing Our Lives experiences to demonstrate their emerging understanding of the role of community engagement in their development of teacher identities.     

ASSESSING THE QUALITY OF PARENT–TEACHER RELATIONSHIPS FOR STUDENTS WITH ADHD

Family involvement in education, including the quality of family–school communication, has been demonstrated repeatedly to have a substantial effect on child development and success in school; however, measures of this construct are limited. The purpose this study was to examine the factor structure and concurrent validity of the Quality of the Parent–Teacher Relationship, a subscale of the Parent–Teacher Involvement Questionnaire, in a sample of children with attention deficit hyperactivity disorder (ADHD). Participants were 260 parents and teachers of children diagnosed with ADHD in Grades kindergarten to 6. Results provided support for a two‐factor model, consisting of separate factors for parents and teachers, and correlational findings provided support for concurrent validity. This measure appears to have utility in assessing parent–teacher relationships and evaluating the effectiveness of family–school interventions.     

Equitable Written Assessments for English Language Learners: How Scaffolding Helps

This study investigated the effects of the use of scaffolds in written classroom assessments through the voices of both native English speakers and English language learners from two middle schools. Students responded to assessment tasks in writing, by speaking aloud using think aloud protocols, and by reflecting in a post-assessment interview. The classroom assessment tasks were designed to engage students in scientific sense making and multifaceted language use, as recommended by the Next Generation Science Standards. Data analyses showed that both groups benefitted from the use of scaffolds. The findings revealed specific ways that modifications were supportive in helping students to comprehend, visualize and organize thinking, and elicit responses. This study offers a model for both sensitizing teachers and strengthening their strategies for scaffolding assessments equitably.     

Is DNA Alive? A Study of Conceptual Change Through Targeted Instruction

We are involved in a project to incorporate innovative assessments within a reform-based large-lecture biochemistry course for nonmajors. We not only assessed misconceptions but purposefully changed instruction throughout the semester to confront student ideas. Our research questions targeted student conceptions of deoxyribonucleic acid (DNA) along with understanding in what ways classroom discussions/activities influence student conceptions. Data sources included pre-/post-assessments, semi-structured interviews, and student work on exams/assessments. We found that students held misconceptions about the chemical nature of DNA, with 63 % of students claiming that DNA is alive prior to instruction. The chemical nature of DNA is an important fundamental concept in science fields. We confronted this misconception throughout the semester collecting data from several instructional interventions. Case studies of individual students revealed how various instructional strategies/assessments allowed students to construct and demonstrate the scientifically accepted understanding of the chemical nature of DNA. However, the post-assessment exposed that 40 % of students still held misconceptions about DNA, indicating the persistent nature of this misconception. Implications for teaching and learning are discussed.     

Developing the changes in attitude about the relevance of science (CARS) questionnaire and assessing two high school science classes

This study has two purposes: (a) methodological—to design and test a new instrument able to reflect changes in attitudes toward science over time, and (b) investigative—to find out the effect of two similar curricular treatments on the attitudes of two classes. Items about the relevance of science to students' lives were developed, pilot‐tested, and analyzed using Rasch modeling. We then divided reliable items into three equivalent questionnaire forms. The final three forms of the questionnaire were used to assess high school students' attitudes. Over 18 weeks, one class used a core curriculum (Science and Sustainability) to learn science in the context of making decisions about societal issues. A second class used the same core curriculum, but with parts replaced by computer‐based activities (Convince Me) designed to enhance the coherence of students' arguments. Using traditional and Rasch modeling techniques, we assessed the degrees to which such instructional activities promoted students' beliefs that science is relevant to them. Both classes tended to agree more, over time, that science is relevant to their lives, and the increases were statistically equivalent between classes. This study suggests that, by using innovative, issue‐based activities, it is possible to enhance students' attitudes about the relevance of science. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 757–775, 2003     

Delivery of Career Development Information in the Context of Information Computer Technology

Clients walking into resources centers are experiencing difficulty locating relevant information and using it effectively in the decision-making process. Many affective, cognitive or technical constraints are influencing clients when interacting with the information and new technologies. What perspectives should the intervention be concerned with as regards the information and decision-making process? How can the human and physical resources be used in an optimal manner to meet information needs associated with the different stages of people's lives? The specificity of these different components and the circular nature of their dynamic form the backdrop for this study.