Reading Strategies in Children with Cerebral Visual Impairment caused by Periventricular Leukomalacia

Four children with cerebral visual impairment caused by periventricular leukomalacia were followed in an ethnographic clinical case study for two years during their process of learning to read in mainstream classes. When compared to children with ocular visual impairment, children with cerebral visual impairment often exhibit an uneven cognitive profile with visuo-spatial deficits but good verbal capacities. One main problem for children with deficits due to periventricular leukomalacia is decreased visual acuity with crowding, that is, an inability to identify symbols in a line, while single symbols of the same size may be identified. A question addressed in the study is what kind of strategies does the child with "crowding" problems develop in reading long words in print. Could Braille, as a sequential reading medium, be an alternative for the child with simultaneous visual problems? Two children were offered both Braille and print reading as reading media, one of whom preferred Braille after two years of training. The other two children read ordinary print without any special teaching. After two years, considerable differences in reading acquisition and reading strategies could be detected among the four children. No single factor seemed to account for the differences. Individual factors as well as teaching methods could be reasons for the differences.     

Reciprocal (and Reductionist?) Newswork

This paper builds upon previous research that examines participatory forms of “reciprocal journalism” and “public communication” led by high school and college students in Miami, Florida, USA, in the fall of 2014. In this study, the students’ assessment of local and national media coverage is used to reveal greater details inherent in examining participatory methods of newswork. Collectively, students said that media coverage emphasis on local and national public officials instead of residents and community members who experience sea-level rise first-hand, combined with a lack of scientific explanation of and solutions for sea-level rise reduced the event's potential to build reciprocal relationships with younger audiences.     

Matching behavior in the young infant.

Infants as young as 2--6 weeks have been reported to exhibit matching behavior in response to seeing an adult model tongue protrusion and certain other acts. Matching behavior to the tongue model declines by 12 weeks. The present study was designed to investigate whether (1) this matching behavior represents selective imitation or a released response that can be elicited by a broad but delimited class of incentive stimuli and (2) stimulation of tongue protrusion enhances the response and delays its decline. 24 infants were observed at 6, 10, and 14 weeks. A moving pen and ball were as effective as the tongue model in eliciting tongue protrusion at 6 weeks, while a dangling ring elicited as much hand opening and closing as the hand model at 14 weeks. After the 6-week visit, 12 of the infants were exposed to the tongue model daily. This intervention delayed the decline of matching behavior to the tongue model at 14 weeks. Also, experimental infants responded selectively to the tongue model, while the pen continued to be an effective releaser of tongue protrusions among controls.     

Children's Counterfactual Reasoning About Causally Overdetermined Events

In two experiments, one hundred and sixty-two 6- to 8-year-olds were asked to reason counterfactually about events with different causal structures. All events involved overdetermined outcomes in which two different causal events led to the same outcome. In Experiment 1, children heard stories with either an ambiguous causal relation between events or causally unrelated events. Children in the causally unrelated version performed better than chance and better than those in the ambiguous condition. In Experiment 2, children heard stories in which antecedent events were causally connected or causally disconnected. Eight-year-olds performed above chance in both conditions, whereas 6-year-olds performed above chance only in the connected condition. This work provides the first evidence that children can reason counterfactually in causally overdetermined contexts by age 8.     

Improving High School–College Alignment: A Sociological Reform and New Challenges

This paper analyzes teacher responses to a distinctive reform that sought to ­implement alignment between high schools and colleges. A survey of 225 teachers is used to examine teachers’ perceptions of the reform’s effectiveness, further resources needed, and how perceptions changed over time. The reform was perceived as effective for college-bound students, but not for non-college-bound students, magnifying the discrepant needs of these groups. Steps to improve the program are suggested.     

Impact of HIPPY on home learning environments of Latino families

This study investigated effects of Home Instruction of Parents of Preschool Youngsters (HIPPY), a paraprofessional home visiting program, on parents and children. The program site served low-income, Spanish-speaking families. On average, mothers were 31 years old (SD = 4.78) and children were 3 or 4 years old (M = 3.92, SD = .92). Participants (n = 54) had more parenting self-efficacy and more enriched home environments than families on a waiting list (n = 54). In a regression on home environment, participation in the intervention was a stronger predictor than maternal education, depression, and stress. A third-grade follow-up of children in the program showed significantly higher math achievement when compared to low-income Latino third graders in the same school district. These findings appear to validate the HIPPY model, which suggests that parents gain confidence as their children's teachers through their experiences in the program. HIPPY successfully addresses the need for culturally sensitive programming aimed at improving educational achievement among minority children.     

Analysis of genetic diversity in banana cultivars (Musa cvs.) from the South of Oman using AFLP markers and classification by phylogenetic, hierarchical clustering and principal component analyses

Banana is an important crop grown in Oman and there is a dearth of information on its genetic diversity to assist in crop breeding and improvement programs.This study employed amplified fragment length polymorphism(AFLP) to investigate the genetic variation in local banana cultivars from the southern region of Oman.Using 12 primer combinations,a total of 1094 bands were scored,of which 1012 were polymorphic.Eighty-two unique markers were identified,which revealed the distinct separation of the seven cultiva...     

CRITICAL FEATURES OF VISUALIZATIONS OF TRANSPORT THROUGH THE CELL MEMBRANE—AN EMPIRICAL STUDY OF UPPER SECONDARY AND TERTIARY STUDENTS’ MEANING-MAKING OF A STILL IMAGE AND AN ANIMATION

Images, diagrams, and other forms of visualization are playing increasingly important roles in molecular life science teaching and research, both for conveying information and as conceptual tools, transforming the way we think about the events and processes the subject covers. This study examines how upper secondary and tertiary students interpret visualizations of transport through the cell membrane in the form of a still image and an animation. Twenty upper secondary and five tertiary students were interviewed. In addition, 31 university students participated in a group discussion and answered a questionnaire regarding the animation. A model, based on variation theory, was then tested as a tool for distinguishing between what is expected to be learned, what is present in the visualizations, and what is actually learned by the students. Three critical features of the ability to visualize biomolecular processes were identified from the students’ interpretations of the animation: the complexity of biomolecular processes, the dynamic and random nature of biomolecular interactions, and extrapolation between 2D and 3D. The results of this study support the use of multiple representations to achieve different learning goals.     

“I have chosen another way of thinking”

The article builds upon a study where students’ relations to science are related to their worldviews and the kind of worldviews they associate with science. The aim of the study is to deepen our knowledge of how worldview and students’ ways to handle conflicts between their own worldview and the worldview they associate with science, can add to our understanding of students’ relations to science. Data consists of students’ responses to a questionnaire (N = 47) and to interviews (N = 26). The study shows that for students who have a high ability in science, those who have taken science-intense programmes in upper secondary school to a higher extent than others have worldviews in accordance with the worldviews they associate with science. This indicates that students who embrace a worldview different from the one they associate with science tend to exclude themselves from science/technology programmes in Swedish upper secondary school. In the article the results are presented through case studies of single individuals. Those students’ reasoning is related to the results for the whole student group. Implications for science teaching and for further research are discussed.