Lawrence P. Gallagher

What Makes Professional Development Effective? Strategies That Foster Curriculum Implementation

This study uses a sample of 454 teachers engaged in an inquiry science program to examine the effects of different characteristics of professional development on teachers’ knowledge and their ability to implement the program. The authors analyzed results from a survey of teachers served by 28 professional development providers within a hierarchical linear modeling framework. Consistent with findings from earlier studies of effective professional development, this study points to the significance of teachers’ perceptions about how coherent their professional development experiences were for teacher learning and program implementation. The authors also found that the incorporation of time for teachers to plan for implementation and provision of technical support were significant for promoting program implementation in the program.

Integration of Technology, Curriculum, and Professional Development for Advancing Middle School Mathematics Three Large-Scale Studies

The authors present three studies (two randomized controlled experiments and one embedded quasi-experiment) designed to evaluate the impact of replacement units targeting student learning of advanced middle school mathematics. The studies evaluated the SimCalc approach, which integrates an interactive representational technology, paper curriculum, and teacher professional development. Each study addressed both replicability of findings and robustness across Texas settings, with varied teacher characteristics (backgrounds, knowledge, attitudes) and student characteristics (demographics, levels of prior mathematics knowledge). Analyses revealed statistically significant main effects, with student-level effect sizes of .63, .50, and .56. These consistent gains support the conclusion that SimCalc is effective in enabling a wide variety of teachers in a diversity of settings to extend student learning to more advanced mathematics.

Preparing Teachers to Design Sequences of Instruction in Earth Systems Science A Comparison of Three Professional Development Programs

This research study examined whether and how professional development can help teachers design sequences of instruction that lead to improved science learning. The efficacy of three professional development programs and a control condition was compared in a cluster randomized trial involving 53 middle school science teachers from a single school district. The four conditions varied along two dimensions: (a) the extent to which the programs guided teachers’ selection of curriculum materials and (b) whether or not teachers received explicit instruction in models of teaching associated with particular methods for designing instruction. Results indicated that the two programs most effective at improving students’ science learning were the ones in which teachers received explicit instruction in models of teaching.

Preparing Teachers to Design Instruction for Deep Understanding in Middle School Earth Science

This study compared the efficacy of 3 approaches to professional development in middle school Earth science organized around the principles of Understanding by Design (Wiggins & McTighe, 1998) in a sample of 53 teachers from a large urban district. Teachers were randomly assigned to a control group or to 1 of 3 conditions that varied with respect to the conceptions of ideal curriculum use embedded within. Teachers either designed units of instruction, adopted units developed by expert Earth scientists and Earth science educators, or learned principled ways to adapt expert-designed curricula. Relying on data from surveys and independent ratings of naturally occurring teacher assignments, we used hierarchical linear modeling techniques to analyze the impacts of the professional development on how teachers planned and coordinated instruction. Our results suggest that to realize positive effects on both their planning and coordination of instruction, teachers need access to high-quality curriculum materials and professional development that helps them plan for principled adaptation of those materials.