The strategic impact model: An integrative approach to performance improvement and instructional systems design

Conclusion The Strategic Impact Model is distinctive in its portrayal of the integration of instructional and non-instructional interventions and its suggestion that all performance interventions undergo an analysis-design-development-production cycle, just as instruction does. It also differs from other similar models in its use of evaluative activities at each stage to assure alignment with strategic needs as well as quality control, and its suggestions for improving the chances of successful implementation by carrying out change management activities at each phase of the development process. He has special interests in distance education, historical and philosophical foundations of instructional technology and instructional development processes. He has special interests in planning and evaluating performance improvement initiatives, including training. An erratum to this article is available at .     

The necessity of each phase of the learning cycle in teaching high school physics

The learning cycle is a method of teaching—it is also a curriculum organization principle and is derived directly from the mental functioning model invented by Piaget. Although Jean Piaget contributed to the formation of the learning cycle (Piaget, 1973), its present structure has to be attributed to Dr. Robert Karplus and the persons who developed the materials of the Science Curriculum Improvement Study (SCIS). It was through the SCIS activities that many of us learned how to develop curricula and teach with the learning cycle. The learning cycle is built upon the premise that three distinct phases are necessary in developing understanding of a concept, that those phases have a definite sequence, and each phase has a definite structure or form. The research done in testing the form variable has already been reported in this journal (Renner, Abraham, & Birnie, 1985). This report explores whether or not each learning-cycle phase is necessary in learning a concept.     

TAKING ACCOUNT OF STUDENTS’ EMPLOYMENT EXPERIENCE IN A COURSE OF INITIAL TEACHER EDUCATION

This study focuses on an industrial, commercial and community experience programme within a full time, one year postgraduate teacher training course. Acknowledging the heterogeneous experiences brought to this course by the students, an attempt was made to detect links between the students’ prior experience and their experience of the industrial, commercial and community programme. The students completed questionnaires before and after a placement and the findings are described. These findings contribute to an evaluation of the programme and suggest a number of important questions for those responsible for designing teacher education courses.     

Connectedness among taiwanese middle school students: a validation study of the hemingway measure of adolescent connectedness

Theories of adolescent connectedness suggest that adolescents strive to become connected by engaging with and valuing the people, activities, and worlds in their social ecology. The purpose of this study was to examine the psychometric properties of a measure designed to assess these worlds of connectedness among 320 junior high school students in Taiwan. The subscales and composite scales evidenced satisfactory reliability and concurrent validity. A hypothesized three-factor, higher order structural model of connectedness was cross-validated. Girls were generally more connected than boys. Both connectedness to school and to friends explained more variance in connectedness to self than did family connectedness. There was mixed support for separation-individuation processes. The measure appears promising in terms of future research on adolescent social development in the Asia Pacific.     

Parameters in television captioning for deaf and hard-of-hearing adults: effects of caption rate versus text reduction on comprehension

Caption rate and text reduction are factors that appear to affect the comprehension of captions by people who are deaf or hard of hearing. These 2 factors are confounded in everyday captioning; rate (in words per minute) is slowed by text reduction. In this study, caption rate and text reduction were manipulated independently in 2 experiments to assess any differential effects and possible benefits for comprehension by deaf and hard-of-hearing adults. Volunteers for the study included adults with a range of reading levels, self-reported hearing status, and different communication and language preferences. Results indicate that caption rate (at 130, 180, 230 words per minute) and text reduction (at 84%, 92%, and 100% original text) have different effects for different adult users, depending on hearing status, age, and reading level. In particular, reading level emerges as a dominant factor: more proficient readers show better comprehension than poor readers and are better able to benefit from caption rate and, to some extent, text reduction modifications.     

Primary teachers' understanding in science and its impact in the classroom

Research carried out over a period of two years into primary teachers' understanding of concepts in science and technology provided information about teachers' confidence in teaching science, their understanding of a range of key ideas and their background of science in their own education. The early part of the paper describes how these data were collected, noting that the method of interviewing used to explore teachers' understanding served as an opportunity for the advancement of their understanding. The relationships among the variables of confidence, understanding and background in science are then explored. Although teachers expressed low confidence in teaching science, which was linked to a lack of understanding of scientific ideas, they also claimed not to find great difficulty in using certain teaching skills required for science, including those which would appear to demand content knowledge. This apparent anomaly is discussed and linked to the strategies used by teachers to cope with low confidence and understanding. The paper ends by considering briefly the role of content knowledge in teaching science.