Lesson study, especially when conducted with support from targeted resources, is often identified as a potentially effective means to support teacher learning. In this study, 80 school-based teams of educators, representing 80 classrooms of third- or fourth-grade students in the US, were randomly assigned to one of four conditions: lesson study…

As parents, communities, educators, and policymakers continue to assess the impact of the COVID-19 pandemic on student learning in America, many have turned to recently released results from the National Assessment of Educational Progress (NAEP). NAEP measures what students know and what they can do in several tested subjects, including reading,…

Early mathematics achievement is a strong predictor of later mathematics achievement, and student competence in fractions and division may be the strongest predictor of success in secondary-level algebra. We used a multisite cluster-randomized trial to estimate the impact of a mathematics teacher professional development (PD) program on student…

Math programming that includes assessments to predict standardized mathematics scores can help evaluate student performance and growth during the academic year. ACALETICS® is a highly interactive, culturally inclusive mathematics program that utilizes posttests as continuous comprehensive assessments to evaluate student mathematical knowledge.…

Researchers explored how 13 states in which policymakers have adopted an A-F school letter grade accountability system performed on the National Assessment of Educational Progress (NAEP) post-policy implementation. Researchers found mixed results, with approximately half of these 13 states increasing achievement post-policy, and the other…

Many studies conducted in the last decades report that very few elementary-grades students understand the meaning of = in mathematics, and that upper-elementary students do not understand it any better than the lower-elementary students do. Using data from thousands of Florida elementary students, we show that students in Florida perform ten to…

Most studies of test-based promotion policies focus on measuring the effect of retention (being left back) on later student outcomes, and the evidence is fairly mixed. However, test-based promotion policies do not only affect the students who are retained. Presumably, they also affect students and schools as they try to improve reading performance…

Curriculum Associates' i-Ready is an adaptive diagnostic and individualized instructional tool that has been used in M-DCPS in the last few years. In addition, Curriculum Associates provides the District with results of their predictive model, which uses the students' outcomes on the Fall and Winter i-Ready diagnostic testing as well as the…

This report examines one component of the current school accountability system--learning gains. We find that learning gain percentages are affected by a variety of factors including starting achievement level, socioeconomic status, and English language learner status when the current definition of learning gains is used. Hence, we propose a new…

Mathematics teacher professional-development (PD) programs based on Cognitively Guided Instruction (CGI) have been developed and implemented with tens of thousands of elementary mathematics teachers worldwide since the 1980s. Starting with a focus on addition and subtraction on whole numbers in the first CGI PD program, the content of these…

The purpose of this quantitative evaluation was to determine if student assessment scores and teacher evaluation scores were affected by the use of "i"-Ready, a computer-based instructional program. To provide an overall teacher perspective of the "i"-Ready program and its effectiveness in this study, the following were used:…

Whether students of color are more or less likely to be identified as having disabilities than similarly situated students who are White in U.S. states with histories of de jure and de facto racial segregation is currently unknown. Unadjusted analyses of large samples of students attending elementary and middle schools in the U.S. South yielded…

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…

The Trends in International Mathematics and Science Study (TIMSS) is an international comparative study designed to measure trends in mathematics and science achievement at the fourth and eighth grades, as well as to collect information about educational contexts (such as students' schools, teachers, and homes) that may be related to student…

Science, technology, engineering, and mathematics (STEM) programs serving students from low socioeconomic areas are understudied in the literature. More research studies need to be conducted to make informed instructional decisions for students who may be at a disadvantage compared to their peers from higher socioeconomic areas. The purpose of…