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TIMSS Insights: Intended, Implemented, and Attained Mathematics and Science Curricula at the Eighth Grade

Findings from TIMSS 2023
 Kalaycioglu, Dilara Bakan Reynolds, Katherine A. Fishbein, Bethany Gonzalez, Eugenio J. von Davier, Matthias
Boston College (2026)
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This report examines how national curriculum expectations in mathematics and science are implemented in classrooms using TIMSS 2023 data. It explores the alignment between intended curriculum, taught content, and student achievement in eighth-grade mathematics and science.