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…

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…

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…

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…

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…

Over $18 billion is spent annually on professional development for in-service teachers. This study examined the focus, duration, and impact of professional development activities in which elementary (students ages 5-11) and middle school (students ages 11-14) teachers participated. Ninety-eight teacher-participants completed an online survey about…

This study finds that, breaking with decades of slow improvement, U.S. reading and math scores on the National Assessment of Educational Progress (NAEP) and other assessments have seen historic declines since most states implemented national Common Core English and math curriculum standards six years ago. This descriptive analysis is designed to…

Many students do not meet expected standards of writing performance, despite the need for writing competence in and out of school. As policy instruments, writing content standards have an impact on what is taught and how students perform. This study reports findings from an evaluation of the content of a sample of seven diverse states' current…

The Odd Shape Out task was an open-ended problem that engaged students in comparing shapes based on their properties. Four teachers submitted the work of 116 students from across the country. This article compares various student's responses to the task. The problem allowed for differentiation, as shown by the many different ways that students…

This study focused on the use of a standardized reading assessment to examine reading comprehension among English language learners (ELLs) and English fluent middle school students, focusing on two text genres: informational and narrative. The Common Core State Standards require students to develop skills in both genres. However, ELLs may not…

We used a design-based research model to examine a historical literacy intervention in Grade 6 classrooms. This article describes the results across 2 separate instructional cycles and for students grouped into 4 categories: (a) high-achieving students (n = 23 and n = 24 for Cycle I and Cycle II, respectively), (b) average-achieving students (n =…

Engaged in the evaluation of LDC tools since June 2011, UCLA's National Center for Research on Evaluation, Standards, and Student Testing (CRESST) is using multiple data sources and a quasi-experimental design to examine LDC implementation and impact in two cohorts of schools in two large, urban school districts. This report presents the results…

Engaged inthe evaluation of LDC tools since June 2011, UCLA's National Center for Research on Evaluation, Standards, and Student Testing (CRESST) is using multiple data sources and a quasi-experimental design to examine LDC implementation and impact in two cohorts of schools in two large, urban school districts. This report presents the results on…

The U.S. educational system is undergoing rapid and substantial changes with many states grappling with the adoption of the Common Core State Standards in Mathematics (CCSSM). Important research questions remain unanswered regarding the potential efficacy of the CCSSM to improve student math performance compared with students around the globe.…

The Literacy Design Collaborative (LDC) was created to support teachers in implementing college and career readiness standards in order to teach literacy skills throughout the content areas. Teachers work collaboratively with coaches to further develop their expertise and design standards-driven, literacy-rich writing assignments within their…