Teachers’ beliefs systems about improving transfer of algebraic skills from mathematics into physics in senior pre-university education

Senior pre-university education (SPE) students experience difficulties applying mathematics to physics. This paper reports the outcome of an online explorative quantitative study of teachers' belief systems about improving transfer of algebraic skills from mathematics into physics, conducted among 503 mathematics and physics teachers working in SPE. We used a questionnaire with 16 beliefs about improving transfer, and asked teachers to select a top 5 and distribute 50 points among them. We used agglomerative hierarchical clustering to cluster qualified SPE teachers with more than 10 years of teaching experience. We found 3 large clusters, each containing naïve and desirable beliefs about transfer. These clusters turned out to be rather coherent sets of beliefs. Hence, these clusters can be interpreted as belief systems, to a certain extent justifying Ernest's [(1991). The philosophy of mathematics education. London: Falmer.] idea to cluster teachers based on their belief systems. We found relations between our groups and those of Ernest. Since naïve beliefs turn out to be weak in each cluster, science teacher educators can help science teachers to change their harmful naïve beliefs, into desirable transfer enhancing beliefs. Furthermore, we discuss some implications of our results for science teacher educators, curricula, teachers and textbooks.     

Major findings from the Canadian incidence study of reported child abuse and neglect

OBJECTIVE: To present key findings from the Canadian Incidence Study of Reported Child Maltreatment (CIS) in sufficient detail to provide a basis for international comparisons in terms of forms and severity of maltreatment and the age and sex of victims. METHOD: A survey conducted in a random sample of 51 child welfare service areas across Canada tracked child maltreatment investigations conducted during the months of October to December 1998, produced a national sample of 7672 child maltreatment investigations. Information was collected directly from investigating workers on child and family background, perpetrator characteristics, severity and types of maltreatment and service and court outcomes of investigations. RESULTS: Forty-five percent of investigations were substantiated and in a further 22% of investigations maltreatment remained suspected. Primary reasons for investigation were physical abuse (31%), sexual abuse (11%), neglect (40%), and emotional maltreatment (19%). A larger proportion of physical abuse cases are isolated incidents involving older children and are more likely to lead to injuries. Sexual abuse, neglect and emotional maltreatment involve more chronic situations with children showing signs of emotional harm. Rates of investigated and substantiated maltreatment are lower in Canada compared to the United States, but are higher than rates reported in Australia. CONCLUSIONS: The CIS provides much needed information for developing a better understanding of the profile and needs of children and families investigated by child welfare authorities in Canada. The study also serves as a point from which international comparisons can be made.     

Solitary and Collaborative Pretense Play in Early Childhood: Sources of Individual Variation in the Development of Representational Competence

This study evaluates sources of individual variation in child pretense play as an expression of emerging mental representation. Family sociodemographic characteristics, maternal personological characteristics, and maternal affective and cognitive play behaviors, as well as children's gender, language competence, and play, were examined simultaneously. Naturalistic child solitary play and child collaborative play with mother were videorecorded in 141 20–month-olds. Child solitary play, child-initiated and mother-initiated collaborative play with mother, and maternal demonstrations and solicitations of play were then coded into nonsymbolic and symbolic acts. Zero-order relations obtained between child play and, respectively, child gender and language, family SES, and maternal verbal intelligence, personality, physical affection, and play demonstrations and solicitations. Structural equation modeling supported the following unique predictive relations: Child language and mothers' symbolic play positively influenced child collaborative play, and child gender and mothers' verbal intelligence predicted child solitary play. Child gender and mothers' verbal intelligence and physical affection influenced mothers' play and so influenced child collaborative play indirectly. The cognitive advantages of child play and maternal influences on child play are placed in an adaptive parenting framework.     

自行车的福音

一天清晨．亚特兰大的杰西·黑斯克骑自行车上班,身后尾随着辆汽车。这位53岁的护士笨拙地骑着车,造成了严重交通堵塞。一位过路人说：“你还能骑得动车．真是幸运。”那之后,她就放弃了自行车。     

The Value of Vocalizing: Five-Month-Old Infants Associate Their Own Noncry Vocalizations With Responses From Caregivers

The early noncry vocalizations of infants are salient social signals. Caregivers spontaneously respond to 30%–50% of these sounds, and their responsiveness to infants’ prelinguistic noncry vocalizations facilitates the development of phonology and speech. Have infants learned that their vocalizations influence the behavior of social partners? If they have, infants should show an extinction burst in vocalizing when adults temporarily stop responding to infant vocalizations. Thirty‐eight 5‐month‐olds were tested in the still‐face paradigm with an unfamiliar adult. When the adult assumed a still face, infants showed an extinction burst. Thus, 5‐month‐olds have learned the social efficacy of their vocalizations on caregivers’ behavior. Furthermore, the magnitude of 5‐month infants’ extinction bursts predicted their language comprehension at 13 months.     

RULER: A Theory-Driven,Systemic Approach to Social,Emotional, and Academic Learning

Social and emotional learning (SEL) is the process of integrating cognition, emotion, and behavior in our lives. In school settings, it involves systemic practices to incorporate SEL into leading, teaching, learning such that adults and children build self- and social awareness, learn to manage their own and other’s emotions and behavior, make responsible decisions, and build positive relationships. Here, we describe RULER, a systemic evidence-based approach to SEL, including its Theory of Change, and key theories that are foundational to the approach. RULER’s implementation model also is described, which involves training for school leaders, educators, and staff; integrating SEL into the curriculum across grade levels; infusing SEL into schoolwide practices and policies; and engaging families and the broader community. RULER’s current and expected outcomes for children and adults are reviewed, including both proximal (e.g., more developed emotion skills and enhanced classroom climate) and distal (e.g., reduced teacher stress and burnout and greater academic performance) outcomes. RULER’s future directions also are discussed.     

Is adaptation to task complexity really beneficial for performance?

Theories of self-regulated learning assume that learners flexibly adapt their learning process to external task demands and that this is positively related to performance. In this study, university students (n = 119) solved three tasks that greatly differed in complexity. Their learning processes were captured in detail by task-specific questionnaires and computer-generated log files. Results indicate that students adapted almost all learning processes significantly to task complexity. For example, students accessed more hypertext pages for complex tasks than for simple tasks. However, this kind of adaptation was not consistently related to performance. For variables capturing learners’ self-regulation, such as the number of accessed hypertext pages, more pronounced adaptation was significantly and positively related to performance even when learners’ general processing depth was statistically controlled. Results were less consistent for variables capturing learners’ self-monitoring, such as their judged task complexity.     

Dealing with conflicting or consistent medical information on the web: When expert information breeds laypersons' doubts about experts

The present study investigated how dealing with conflicting versus consistent medical information on the Web impacts on topic-specific and medicine-related epistemic beliefs as well as aspects of health decision making. One hundred mostly female university students were randomly assigned to three groups. Two intervention groups searched the Web for information on cholesterol to advise a fictitious friend about treatment. Pre-selected websites for these groups provided either conflicting or consistent information. The third group, the control group, did not conduct Web search. Results showed that the intervention groups differed in topic-specific epistemic beliefs. After the Web search, their medicine-related epistemic beliefs were more advanced while remaining unchanged in controls. The intervention groups also differed in some aspects of decision making.     

Increasing Persistence in Undergraduate Science Majors: A Model for Institutional Support of Underrepresented Students

The 6-yr degree-completion rate of undergraduate science, technology, engineering, and mathematics (STEM) majors at U.S. colleges and universities is less than 40%. Persistence among women and underrepresented minorities (URMs), including African-American, Latino/a, Native American, and Pacific Islander students, is even more troubling, as these students leave STEM majors at significantly higher rates than their non-URM peers. This study utilizes a matched comparison group design to examine the academic achievement and persistence of students enrolled in the Program for Excellence in Education and Research in the Sciences (PEERS), an academic support program at the University of California, Los Angeles, for first- and second-year science majors from underrepresented backgrounds. Results indicate that PEERS students, on average, earned higher grades in most “gatekeeper” chemistry and math courses, had a higher cumulative grade point average, completed more science courses, and persisted in a science major at significantly higher rates than the comparison group. With its holistic approach focused on academics, counseling, creating a supportive community, and exposure to research, the PEERS program serves as an excellent model for universities interested in and committed to improving persistence of underrepresented science majors and closing the achievement gap.