Curriculum mapping is a comparability method that facilitates comparisons of content within multiple settings (usually multiple jurisdictions or specifications) and enables claims to be made about those curriculums/jurisdictions. Although curriculum maps have been published, there is little academic literature about the process of constructing and…

Prior to the 2010 release of the Common Core State Standards for Mathematics (CCSSM), the curricular landscape in the United States consisted of an assortment of individual state standards that as a collection reflected little consensus as to the grade placement of specific mathematical content. As CCSSM has now been used as the foundation for…

A new classification for semantic structures of one-step word problems is proposed in this paper. The classification is based on illustrations of word problem situations in Common Core State Standards (CCSSM, 2010) and related historical studies (e.g. Weaver, 1973, 1979, 1982), as well as conceptual elaborations of embodied and grounded nature in…

Greater school choice leads to lower demand for private tutoring according to various international studies, but this has not been explicitly tested for the U.S. context. To estimate the causal effect of charter school appearances on neighboring private tutoring prevalence, we employ a comparative event study model combined with a longitudinal…

The reading of complex text has become part of the reading curriculum since the introduction of the Common Core State Standards. However, little research has been conducted to determine the effect of complex text instruction on comprehension and fluency in secondary readers. This study randomly assigned 53 11th-grade US history students to one of…

The Next Generation Science Standards (NGSS) claim to be an evolution of previous work. Yet prominent voices in the science education community argue that they are a revolution. This study sought to examine these competing claims by analyzing an older middle school science curriculum through the lens of the NGSS. This analysis demonstrates that…

Geographic isolation of K-12 schools represents a unique challenge to schools with implications for school funding, staffing, resource acquisition, consolidation, transportation, and school choice among others. To date, little research has documented the extent of geographic isolation at a national scale or how it varies across school contexts.…

This article describes a modeling project the author did with his algebra, geometry, and applications students in grades 9, 10, and 11 as an enrichment and exploration of an extremely relevant real-world phenomenon and introduction to the adult profession of epidemiologist. With discussion and exploration, this project consumed two periods of 88…

In this study, we examined and compared volume and volume-related lessons in two common core aligned U.S. textbook series and Korean elementary textbooks. Because of the importance of textbooks in the lesson enactment process, examining what textbooks offer to students and teachers is important. Since different parts of a textbook provide…

This study explores six item-reduction methodologies used to shorten an existing complex problem-solving non-objective test by evaluating how each shortened form performs across three sources of validity evidence (i.e., test content, internal structure, and relationships with other variables). Two concerns prompted the development of the present…

Implementation of the Common Core Mathematical Standards and Practices (CCSS) has emphasized the importance of instruction that develops both procedural knowledge and conceptual understanding. Novice teachers have experienced the implementation of the CCSS during their PreK-12 experience, as well as within their teacher preparation program. It may…

In the U.S., state adopted or developed college- and career-ready mathematics standards, including the Common Core State Standards for Mathematics, not only impact districts, students, and their teachers, but also university teacher preparation programs. In order to attain and sustain Common Core's vision of developing mathematically competent…

Algebra 1 is a gatekeeper course with profound implications for students' academic and professional success. This study examines the implications of teaching Algebra 1 through a standardized, fully online, asynchronous course developed by one of the largest online course vendors in the United States in alignment with Common Core State Standards…

Among dozens of factors that influence mathematics teaching in the elementary classroom, textbooks endure as a significant contributor to the conversation. While teachers have many considerations while lesson planning, the textbook often forms an important launch point in determining what to include in lessons and how to do so. It follows that…

Do Americans hold a consistent set of opinions about their public schools and how to improve them? From 2013 to 2018, over 5,000 unique respondents participated in more than one consecutive iteration of the annual, nationally representative "Education Next" poll, offering an opportunity to examine individual-level attitude stability on…