Understanding the development of mathematics self-efficacy has important implications. Based on Bandura's four sources of self-efficacy, most previous studies mainly examined whether the sources predicted or correlated with mathematics self-efficacy, which might have oversimplified the underlying mechanism of self-efficacy development. This study…

In this study, we investigate sixth, seventh, and eighth grade students' achievement in nonlinear (quadratic or cubic) proportional problems regarding length, area, and volume of enlarged figures. In addition, we examine students' solution strategies for the problems and obstacles that prevent students from answering the problems correctly by…

This mixed methods study examined an association between cognitive types of teachers' mathematical content knowledge and students' performance in lower secondary schools (grades 5 through 9). Teachers (N = 90) completed the Teacher Content Knowledge Survey (TCKS), which consisted of items measuring different cognitive types of teacher knowledge.…

This study explored the effects of arguing to learn in a socioscientific context on the fundamental and derived components of reading, writing, and science understanding as integral parts of science literacy. We adopted mixed-methods in which the 1-group pretest-posttest design with supplemental interviews and questionnaires. The pretest evaluated…

This study examines the difference in effectiveness between two scientific inquiry programs-one with an emphasis on scientific reasoning and one without a scientific reasoning component-on students' scientific concepts, scientific concept-dependent reasoning, and scientific inquiry. A mixed-method approach was used in which 115 grade 5…

What does it take to change a school's mathematics achievement profile from low to one that is proficient and advanced? Is this transformed achievement profile sustainable? Such is the story presented here, in this three-phase case study of a K-8 urban charter school's mathematics program. The first phase discusses the school's…