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Two studies were conducted to examine content knowledge changes following 2 weeks of professional development that included scientific research with university scientists. Engaging teachers in scientific research is considered to be an effective way of encouraging knowledge of both inquiry pedagogy and content knowledge. We used concept maps with two cohorts of teachers to assess changes in science teacher knowledge. In study 1, 34 teachers developed pre- and post-concept maps in one of the nine different content areas. A repeated measures analysis of six quantitative scores showed statistically significant increases in knowledge representation. Quantitative and qualitative scoring methods indicate that concept maps are effective for assessing teacher knowledge gains from professional development. Study 2 replicated the results with 24 teachers and provided further information about how knowledge changes.

This paper discusses a qualitative study which examined students' problem-solving, metacognition, and motivation in a learning environment designed for teaching educational technology to pre-service teachers. The researchers converted a linear and didactic learning environment into a new open learning environment by contextualizing domain-related concepts and skills and providing ill-structured, collaborative problem-solving opportunities. The intervention called Learning Environments Approaching Professional Situations (LEAPS) took into account issues surrounding motivation and situativity that are of particular interest to instructional developers and design-based researchers. In this study, four classes were assigned as either traditional or LEAPS environments from which four cases were selected for further examination. The results suggested that the LEAPS approach was beneficial in supporting students' problem-solving, motivation, and self-reflections, but only under specific conditions. The implications for instructional design and motivation are discussed.

This qualitative study investigated a situated learning environment implemented in an educational technology course where pre-service teachers worked collaboratively on meaningful real-world projects, assuming the role of professional teachers. With a traditional learning environment as a critical frame of reference, we found that the students in the situated learning environment demonstrated sophisticated problem-solving skills, exhibited metacognitive awareness, produced coherent artifacts, and showed high levels of motivation. The findings implied that if we want to successfully implement situated learning, effort should be made to promote a constructive learning culture, improve individual performance, manage students' perceptions, and foster their positive attitudes. (Contains 3 figures and 2 tables.)