This project will provide an empirically-supported learning progression for a key scientific practice, scientific modeling. The specific instructional materials created as part of the project can serve as a model other developers can use to design materials supporting scientific modeling and other practices. The model for educative curriculum materials as a form of teacher support can be adapted to support teacher learning about modeling or other scientific practices in other curriculum materials.
This project is based on the assumption that teachers often make modifications to curriculum; reordering, skipping or adding lessons, changing an "exploration" into a lecture, and so on. This project pursues three related questions: What types of modifications do teachers make (and why), which types of modifications best help students learn, and how do teachers' modifications change in response to professional development activities designed to help them become more attuned to students' thinking?