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The Discovery Research K-12 (DR K-12) program, funded by the National Science Foundation (NSF) Division of Research on Learning in Formal and Informal Settings (DRL), supports high-quality research and development on science, technology, engineering, and mathematics (STEM) learning and teaching. The portfolio of DR K-12 projects span what NSF has characterized as a cycle of research and development—a dynamic, ongoing process through which knowledge and products are conceived,developed, disseminated and revised.

This paper presents a framework and a procedure for developing vignette illustrations as a form of testing accommodation for English language learners (ELLs). Vignette illustrations are defined as illustrations added to test items originally created without illustrations, with the intent to provide a visual support for ELLs that increases their chances of accessing the content of those test items.

Understanding, exploring, and interacting with the world through models characterizes science in all its branches and at all levels of education.  Model-based reasoning is central to science education and thus science assessment.  Building on research in assessment, science education, and learning sciences, this report provides a set of desgin patterns to help assessment designers, researchers, and teachers create tasks for assessing aspects of model-based reasoning: Model Formation, Model Use, Model Elaboration, Model Articulation, Model Evaluation, Model Revision, and Model-Base

This report provides recommendations and best practices suggestions for the use of metricsin digital library project evaluation, formulated by the National Science Digital Library(NSDL) Metrics Working Group.

In this document, we provide an overview of which metrics are useful for assessing digitallibrary activities, make recommendations on how to collect those metrics, and provide examples of how to use collected metrics in larger evaluation efforts.

Submitted to The Journal of the Learning Sciences