Even though the United States (U.S.) spends, on average, more money per student than most Organisation for Economic Co-operation and Development (OECD) countries, it continues to lag behind its international peers in mathematics achievement. This study, which responded to the call for educational reforms that improve the mathematics achievement of U.S. students, aimed to examine the issue of student help-seeking behaviors and teacher instructional practices as they interact to affect student mathematics achievement. The Programme for International Student Assessment (PISA) defines student help-seeking behaviors as the ways in which students have a propensity to depend on the knowledge and intellect of others, including both their peers and teachers, when attempting to solve problems. Because mathematics is perhaps the most difficult school subject, student help-seeking behaviors should be a critical component of mathematics learning and teaching. Unfortunately, the research literature is barren concerning this important educational issue. This study attempted to produce the first wave of empirical evidence and open up an avenue for future research in this less-charted academic field, with the ultimate goal being to use students’ help-seeking behaviors to improve their mathematics achievement. Using the U.S. sample of 15-year-old students from PISA 2012 (the most recent PISA assessment in which the main area of focus was mathematical literacy), this study intended to determine whether students’ help-seeking behaviors play a significant role in their mathematics achievement, whether this relationship varies from school to school, and whether teacher instructional practices contribute to the school-level variation. Due to the multilevel structure of the data, with students being nested within schools, a two-level hierarchical linear model (HLM) was employed in the analysis of the data. Multiple measures of mathematics achievement were used as the dependent variables for separate analyses. Student help-seeking behavior was used as the key student-level independent variable, while three teacher instructional practices were used as the key school-level independent variables. In addition, several student and school background characteristics were used as control variables. The findings from this study indicate that student help-seeking behavior has a statistically significant effect on all measures of student mathematics achievement, even after controlling for various student background characteristics. On the other hand, the study did not find statistically significant evidence that the effects of student help-seeking behavior on any measure of student mathematics achievement vary from school to school. Overall, the issue of student help-seeking behaviors should be considered a worthy topic to pursue in future educational research. From a practical standpoint, since students’ mathematics achievement is positively associated with their help-seeking behaviors, efforts should be made to educate mathematics teachers on how to encourage their students to be more proactive in seeking help in the learning of mathematics.

Teachers are an essential link between the curriculum and student achievement. Teachers make instructional decisions that (1) determine the success or failure of a curricular intervention and (2) can result in either alignment or disconnect between the written and enacted curricula. Despite overwhelming evidence linking the success or the failure of a curricular intervention to the classroom teacher, little is known about the instructional decisions teachers make when using a standards-based curriculum. The use of standards-based curriculum is becoming common, therefore, it is essential to know how teachers are using it. This study focused on three questions. First, can the factors that influence instructional decisions be consolidated into manageable, representative, and useful categories? Second, what instructional decisions did six science teachers in a rural central Texas school district make when using the standards-based curriculum, CSCOPE? Finally, what steps did one district take to select and adopt the SBC, CSCOPE? This study found that the factors that influence instructional decisions could be clustered into four categories: (1) working conditions, (2) pedagogical content knowledge, (3) prior experiences, and (4) beliefs. Further, that teachers made instructional decisions both to use CSCOPE as intended and to modify CSCOPE lessons. Modifications to CSCOPE were made despite (1) an administrative mandate not to modify CSCOPE, (2) good administrative support, and (3) the stated intention of these teachers to adhere to CSCOPE. Teachers omitted, replaced and/or supplemented lessons and/or parts of lessons in order to (1) accommodate the needs of their students and (2) prepare students for the state assessment. Finally, several steps taken by Bluecat ISD administrators assisted teachers in using CSCOPE as intended. This study makes three contributions to the educational literature. First, no useful categorization exists of the factors that influence teachers‟ instructional decisions. Chapter II provides an initial categorization of these factors that is manageable, representative, and useful. Second, administrators need to be able to anticipate how teachers may use a standards-based curriculum. Chapter III identifies the instructional decisions made by these six science teachers. Chapter IV identifies the measures put in place to support teachers as they adjusted to CSCOPE.