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Mohr-Schroeder, Margaret; Ronau, Robert N.; Peters, Susan; Lee, Carl W.; Bush, William S. – Journal for Research in Mathematics Education, 2017
This article describes the development and validation of two forms of the Geometry Assessments for Secondary Teachers (GAST), which were designed to assess teachers' knowledge for teaching geometry. Both forms were developed by teams of mathematicians, mathematics educators, psychometricians, and secondary classroom geometry teachers. Predictive…
Descriptors: Predictor Variables, Academic Achievement, Mathematics Instruction, Geometry
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Tarr, James E.; Grouws, Douglas A.; Chavez, Oscar; Soria, Victor M. – Journal for Research in Mathematics Education, 2013
The authors examined curricular effectiveness in high schools that offered parallel paths in which students were free to study mathematics using 1 of 2 content organizational structures, an integrated approach or a (traditional) subject-specific approach. The study involved 3,258 high school students, enrolled in either Course 2 or Geometry, in 11…
Descriptors: Mathematics Instruction, High School Students, Curriculum Implementation, Teaching Methods