Pre-service biology teachers’ perceptions on the instruction of socio-scientific issues in the curriculum

The work presented here represents a preliminary attempt to address the role of teachers in supporting students’ learning on socio-scientific issues (SSI) by characterising pre-service biology teachers’ perceptions and adaptation of curriculum and identifying factors that serve to mediate this process. A hundred and two undergraduate pre-service biology teachers took part in this study over the course of one semester. The teacher candidates (72% female) completed a questionnaire comprising Likert-type and open-ended questions. The results indicated that the teacher candidates perceived a need to address SSI positively. Pre-service teachers had moderate personal teaching efficacy beliefs related to teaching about SSI. They also identified the lack of instructional time and the unavailability of relevant materials as the primary obstacles hindering the teaching of SSI. The implications for teacher education and the design of curriculum materials with respect to SSI are discussed.     

Revisiting print exposure: exploring differential links to vocabulary,comprehension and reading rate

Undergraduates (N=171) completed a revised version of the Author Recognition Test ( Stanovich & West, 1989 ). The resulting print exposure scores were divided into two dimensions: personal reading experience (primary print knowledge – PPK) and secondary print knowledge (SPK). Both PPK and SPK were correlated with print exposure, but not with each other. PPK correlated more strongly with reading‐related variables (vocabulary, comprehension and reading rate) than did SPK. Of particular importance, PPK accounted for variance in all three criterion variables after the effects of SPK had been factored out. Thus, these data support the notion that it is the act of reading over and above memory for reading‐related information that furthers the development of linguistic skill.     

Numeracy Abilities of Children in Grades 4 to 6 with Mild Intellectual Disability in Singapore

Mathematics is an important aspect of daily life. Basic numeracy skills are needed to accomplish everyday tasks. However, research regarding the relationship between cognitive ability, mental age, and basic numeracy skills for children with intellectual disability (ID) is scarce. This research study investigated the correlation between intellectual ability and the development of number sense and arithmetic abilities in individuals with ID. Thirty-two students from a special school for individuals with ID in Singapore participated in this research study. Based on the results, basic numeracy is more closely correlated to the mental ages of the students than their intelligence quotient. This finding will be discussed and suggestions for future research will be provided.     

A small-scale concept-based laboratory component: the best of both worlds

In this article, we describe an exploratory study of a small-scale, concept-driven, voluntary laboratory component of Introductory Biology at the Massachusetts Institute of Technology. We wished to investigate whether students' attitudes toward biology and their understanding of basic biological principles would improve through concept-based learning in a laboratory environment. With these goals in mind, and using our Biology Concept Framework as a guide, we designed laboratory exercises to connect topics from the lecture portion of the course and highlight key concepts. We also strove to make abstract concepts tangible, encourage learning in nonlecture format, expose the students to scientific method in action, and convey the excitement of performing experiments. Our initial small-scale assessments indicate participation in the laboratory component, which featured both hands-on and minds-on components, improved student learning and retention of basic biological concepts. Further investigation will focus on improving the balance between the minds-on concept-based learning and the hands-on experimental component of the laboratory.     

Book review

Douglas, S. J. (1994). Where the girls are: Growing up female with the mass mediay. New York: Times Books. 340 pages.

Lang, A. (Ed.). (1994). Measuring psychological responses to media messages. Hillsdale, NJ: Lawrence Erlbaum. 244 pages.

Cosby, C. O. (1994). Television's imageable influences: The self‐perceptions of young African Americans. Lanham, MD: University Press of America. 172 pages.

Kern‐Foxworth, M. (1994). Aunt Jemima, Uncle Ben, and Rastus: Blacks in advertising, yesterday, today, and tomorrow. Westport, CT: Greenwood Press. 205 pages.

Fiske, J. (1994). Media matters: Everyday culture and political change. Minneapolis, MN: University of Minnesota Press. 253 pages.

Johnson, L. L. (1994). Toward competition in cable television. Cambridge, MA & Washington, DC: MIT Press & AEI Press. 214 pages.

Krattenmaker, T. G., & Powe, L. A., Jr. (1994). Regulating broadcast programming. Cambridge, MA & Washington, DC: MIT Press & AEI Press. 369 pages.

Moores, S. (1993). Interpreting audiences: The ethnography of media consumption. London: Sage. 140 pages.     

Gender portrayal in Hong Kong and Korean children's TV commercials: A cross‐cultural comparison

This study examined gender portrayal in a sample of 345 television commercials broadcast during children's programmes in Hong Kong and Korea using content analysis. Literature suggests that Hong Kong culture differs from Korean culture on the dimension of Masculinity/Femininity proposed by Hofstede. The differences between the two countries provide a valid test of theory, and suggest hypotheses about the gender portrayal in children's advertising. The results of the study showed, contrary to expectations from Hofstede's framework, that the gender portrayal of central characters and the level of gender stereotyping in Hong Kong commercials was similar to those of Korean commercials. Possible explanations include the emerging homogeneous youth market using a standardized advertising strategy, and the rising concern for women's rights in Korea.     

Enabling What Works: The Role of Negotiators in Structuring School Change

The text of this commentary was adapted from a speech given to the North American Education Negotiators. In it, Gould examines some perspectives of one of the nation's two largest teacher organizations, the American Federation of Teachers, on educational reform, teacher quality, and compensation. He argues that collective bargaining serves as an important tool for structuring the educational system. The potential for educational change is one of the reasons why we should examine the potential benefits of pursuing improvements through the bargaining process.