Featured Blog Posts
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How do we identify great teachers and help all teachers improve their craft? The best option may be to combine student growth measures, observations of teachers in the classroom, and student surveys.


Large investments of federal money have been flowing to states and districts through Title II to help improve teachers and school leaders. Yet the idea that we know how to help educators improve through professional development may just be a mirage.

Expert Spotlight
  • Duncan Chaplin
    Senior Researcher

    Duncan Chaplin’s work focuses on education, international development, and evaluation methods.

  • Hanley Chiang
    Associate Director

    Hanley Chiang is an expert in designing rigorous program evaluations in education and has conducted extensive research on measuring and improving teacher and principal effectiveness.

  • Kristin Hallgren
    Senior Researcher

    Kristin Hallgren specializes in conducting in-depth, qualitative research on educational interventions. She also has expertise in evaluating school turnaround, teacher supports, and data-driven decision making strategies in education.