Investigating scientific reasoning comprehensively with large sample sizes is a challenge, especially in young children where there is little evidence showing that paper-and-pencil instruments can be used to reliably measure competencies. The present study with 122 third graders compares three test modalities: an established interview (Science-K…

This study explored how four elementary teachers assessed the developmental appropriateness and importance of nine nature of science (NOS) aspects after participating in a yearlong professional development program. A multiple-embedded case study design was employed. The primary data sources included (a) Views of Nature of Science Elementary School…

This study examined the nature of science (NOS) views of lower elementary grade level students, including their views of scientists. Participants were 23 third-grade African American students from two Midwest urban settings. A multiple instrument approach using an open-ended questionnaire, semi-structured interviews, a modified version of the…

The Trends in International Mathematics and Science Study (TIMSS) Video Study explored instructional practices in the United States (US) in comparison with other countries that ranked higher on the 1999 TIMSS assessment, and revealed that 8th grade science teachers in the US emphasize activities over content during lessons (Roth et al.…