Testing the efficacy of team teaching

This study examines differences between team-taught and solo-taught sections of a graduate introductory course on research and statistics in terms of student perceptions and achievement. Factor analysis of survey data confirmed three factors: comfort with research and statistics; the relationship of research and statistics to work; and interest in research and statistics. Pre- and post-survey and achievement data were gathered, as were demographic data. T-test and MANCOVA results indicated: no significant achievement differences based on teaching format; a significant pre-post difference for all students on one factor (comfort with research and statistics); and only one significant difference (relationship between work and research and statistics) based on learning environment.     

Scaffolding Preservice Science Teachers' Evidence-Based Arguments During an Investigation of Natural Selection

In this qualitative case study, preservice science teachers (PSTs) enrolled in their advanced methods course participated in a complex, data-rich investigation based on an adapted version of the Struggle for Survival curriculum. Fundamental to the investigation was the use of the Galapagos Finches software and an emphasis on giving priority to evidence and constructing evidence-based arguments. The questions that guided the research were: (1) What is the nature of the scientific arguments developed by PSTs? (2) How do PSTs go about constructing scientific arguments (emphasis on processes and strategies)? (3) In what ways do the scaffolds embedded in the Galapagos Finches software influence the development of PSTs arguments? Two pairs of PSTs were selected for in-depth examination. The primary sources of data were the electronic artifacts generated in the Galapagos Finches software environment and the videotaped interactions of both pairs as they investigated the data set, constructed and revised their arguments, engaged in peer review sessions, and presented their arguments to the class at the end of the unit. Four major patterns emerged through analysis of the data. First, using the software, PSTs consistently constructed claims that were linked to evidence from the investigation. Second, although PSTs consistently grounded their arguments in evidence, they still exhibited a number of limitations reported in the literature. Third, the software served as a powerful vehicle for revealing PSTs knowledge of evolution and natural selection. Finally, the PSTs approach to the task had a strong influence on the way they used the software.     

Conceptions of mathematics and how it is learned: The perspectives of students entering university

This paper reports results from an investigation to identify the conceptions of mathematics held by beginning university students and their approaches to the study of mathematics. Phenomenographic techniques were used to analyze responses to a questionnaire administered to approximately 300 students. An analysis of the results identified a structural relationship between students' conceptions of mathematics and their approaches to learning it, with the majority of students viewing mathematics as a necessary set of rules and procedures to be learned by rote. The results of this research have implications for the ways in which teaching and learning are constituted within universities.     

Non-linear instructional design model: eternal, synergistic design and development

Instructional design is at the heart of each educational endeavour. This process revolves around the steps through which the thoughtful productions of superior products are created. The ADDIE generic instructional design model emphasises five basic steps within the instructional design process: analyse, design, develop, implement and evaluate. The simplistic nature of the ADDIE model, including the ease of application and possibilities towards the cyclical features of the process, enable a more holistic overview of the instructional design process. The Eternal, Synergistic Design Model emphasises the non‐linear nature of the instructional design process. The continuous design and development focuses upon the core evaluation of the product, wherein the Pareto principle emphasises the feedback related to the 20% of difficulties while maintaining an eye upon the 80% neutral and positive aspects of the product.