COLLEGE OF EDUCATION & HUMAN DEVELOPMENT Measuring Teacher Science Knowledge Tom Tretter University of Louisville
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT DTAMS STRUCTURE BREADTH (Physical Sci. example) Matter Motion & Forces Energy STS DEPTH Declarative Inquiry Schematic Pedagogical Diagnostic Teacher Assessments in Mathematics & Science (DTAMS) Available for Physical, Life, Earth Science
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT DTAMS CHARACTERISTICS Targets middle school teacher knowledge (multiple choice & open response formats) Samples across a broad spectrum of content within a domain (e.g. physical) Validity: Based on synthesis of content from NSES, Benchmarks, TIMSS, NAEP, NSTA Validity: Items reviewed by national sample of scientists, teachers, science educators Reliability: Cronbach alpha > 0.81 (n=1790) An assessment option for teacher science knowledge available on the MSP reporting site
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT EXAMPLE ASSESSMENT USE Spans spectrum of physics topics Focuses on deep conceptual understanding of underlying principles Content organized around applications to how things work Incorporates appropriate pedagogical techniques as mode of content delivery Physics for Teachers: How Things Work
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT EXAMPLE ASSESSMENT USE Subscale (pts. possible) Pre Post Total (35)18.63 (4.76)27.3 (6.34) *** Depth of Knowledge Subscales Declarative (5)3.70 (0.95)3.96 (1.16) Inquiry (5)3.26 (0.94)2.85 (1.38) Schematic (15)8.15 (2.46)12.1 (2.85) *** Pedagogical (10)3.52 (2.08)8.37 (1.86) *** Breadth of Knowledge Subscales Matter (6)4.11 (1.09)4.78 (1.25) * Motion & Forces (6)3.89 (0.97)4.44 (1.37) Energy (13)7.11 (2.19)9.70 (2.60) *** STS (5)2.33 (1.30)3.70 (1.27) *** Note. Data are mean (standard deviation) of the various subscales, but subscales cannot be directly compared because the total points vary across subscales. *p<.05. **p<.01. *** p<.001. Results - Growth in Physical Science Scores (n=27)
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT POSSIBLE REASONS FOR POSITIVE RESULTS Sustained involvement (45 contact hours over course of a semester) Alignment of PD approach with assessment foci (broad coverage, conceptual understanding, pedagogy) Importance of assessment to teachers (part of final exam grade)
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT LIMITATIONS Sampling of content is limited Targets middle school teacher knowledge Open response introduces some score variability
COLLEGE OF EDUCATION & HUMAN DEVELOPMENT DISCLAIMER The instructional practices and assessments discussed or shown in this presentation are not intended as an endorsement by the U.S. Department of Education.