"Geometry--Do" is a textbook about plane geometry. It will be divided into two volumes, "Geometry without Multiplication: White through Red Belt," and "Geometry with Multiplication: Blue through Black Belt. "The white- and yellow-belt chapters are neutral geometry; the remainder of "Volume One" and all of…

While the Common Core State Standards for Mathematical Practice are a focal point of K-12 mathematics education, there is limited research examining how future teachers' (e.g., undergraduate students, teacher candidates) develop their conceptions of these standards. We investigate how opportunities within a mathematics-focused bridge course within…

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…

This survey study examined the extent to which science teachers report implementing science literacy practices aligned to Common Core State Standards and Next Generation Science Standards. The instrument was emailed to all secondary science teachers (N=2519) in one northeastern state and 14% (n=343) responded. Practices that reflected disciplinary…

Horizon Content Knowledge (HCK, Ball, Thames & Phelps, 2008), knowledge that teachers hold about the interconnectedness of mathematics, has been recognized as an integral component of Mathematics Knowledge for Teaching, yet little is known about how or where it is taught in the preservice teacher (PST) curriculum or how researchers should…

This study examines the perceptions of the Standards for Mathematical Practice (SMPs) held by 34 middle school mathematics teachers (MSMTs) as evidenced by their interactions with seven lessons drawn from thinking device (TD) and delivery mechanism (DM) curriculum types. MSMTs' perceptions of the SMPs consistent with their wording in the Common…

The Common Core State Standards (CCSS) Initiative was initially met with great enthusiasm from politicians and education experts. However, as states began rolling out the standards, backlash against the Common Core became widespread, and several states ended up pulling out of the initiative. To explore and better understand why there was such a…

As part of a larger study, we report findings on teachers' use of the Common Core State Standards for Mathematics (CCSSM) and teacher resources (TR) that were included with teachers' published curriculum programs. We analyzed 147 lesson planning interviews with 20 middle school teachers to understand how teachers interpreted and enacted the CCSSM…

As teachers shift their practice from traditional student-to-teacher interaction patterns to collaborative discussions around rich mathematics, they often encounter instructional challenges. One such challenge is deciding when to pursue interesting and productive ideas that run contrary to the particular mathematical goal of the lesson. In this…

This report stems from the Data Innovation in US Education initiative funded by the Bill & Melinda Gates Foundation. The work was led by the Preva Group, in partnership with IMPAQ and Periscopic. The initiative had three overarching goals: to support the Foundation's efforts to better understand the impact of their education investments; to…

Political resistance to the Common Core State Standards (CCSS) has grown in recent years, yet little empirical research has examined this subject. Drawing on Fukuyama's theory of political order and decay, we provide a case study of the politics surrounding the CCSS in Oklahoma, one of three states to have fully repealed the CCSS after initially…

This study explores the assessment of the alignment of mathematics instructional materials with the Common Core State Standards for Mathematics (CCSSM). First, focus, rigor, and coherence, identified in TIMSS studies and also established for CCSSM, were chosen as criteria of alignment. Then, the CCSSM Graph (Zimba, 2012) was used as a yardstick to…

One component of the United States' public school curriculum core is social studies. Since the No Child Left Behind Act (2001), elementary social studies has been marginalized, and in some cases, eliminated from the school day in favor of increased time for literacy and mathematics instruction. Kentucky's adoption of the ELA Common Core standards…

Using the method of educational criticism and connoisseurship, this study examined third grade teachers' pedagogical choices made to prepare their students for high stakes testing under the Common Core Standards. Three teachers in three different suburban school settings within a large district in one of the states of the Rocky Mountain West…

Successful implementation of academic standards depends on teachers' understanding of the intended policy and their interpretation of what the policy means for their instruction (Spillane et al., 2002). This study examines the writing tasks fourth- and fifth- grade teachers understand as being aligned with the CCSS [Common Core State Standards],…