Reports in recent years have demonstrated math teacher shortages in hard-to-staff school contexts due to high rates of teacher turnover. In this paper, I evaluate the impact of exposure to new, new-to-school, and emergency/unlicensed teachers on student math achievement on one recent cohort of Indiana students in 3rd through 8th grade. I find that…

Many children fail to master fraction arithmetic even after years of instruction. A recent theory of fraction arithmetic (Braithwaite, Pyke, & Siegler, 2017) hypothesized that this poor learning of fraction arithmetic procedures reflects poor conceptual understanding of them. To test this hypothesis, we performed three experiments examining…

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…

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…

The National Assessment of Educational Progress (NAEP) is the largest nationally representative and continuing assessment of what the nation's students know and can do in various subjects such as mathematics, reading, science, and writing, as well as civics, geography, technology and engineering literacy, and U.S. history. The results of NAEP are…

This annual report provides information for the 2015-16 school year on grade-level retention and student performance in the Texas public school system. Student retention and promotion data are reported with data on the performance of students in Grades 3-8 on the State of Texas Assessments of Academic Readiness (STAAR) reading and mathematics…

Many children fail to master fraction arithmetic even after years of instruction. A recent theory of fraction arithmetic (Braithwaite, Pyke, & Siegler, in press) hypothesized that this poor learning of fraction arithmetic procedures reflects poor conceptual understanding of them. To test this hypothesis, we performed three experiments…

While rural communities are not monolithic, many have seen recent shifts in demographics from historically homogenous populations to more racially, culturally, and linguistically diverse residents (e.g., Sharp & Lee, 2017; Brenner, 2016). Such shifts can occur very rapidly as new regional economic, social, or political forces emerge and are…

We study an early effort amid the COVID-19 pandemic to develop new approaches to virtually serving students, supporting teachers, and promoting equity. This five-week, largely synchronous, summer program served 11,769 rising 4th-9th graders. "Mentor teachers" provided PD and videos of themselves teaching daily lessons to "partner…

High-quality measures of instructional practice are essential for research and evaluation of innovative instructional policies and programs. However, existing measures have generally proven inadequate because of cost and validity issues. This paper addresses two potential drawbacks of survey self-report measures: variation in teachers'…

Charter schools in urban environments have been scrutinized for their effectiveness. This study attempted to determine whether students attending Midwestern urban charter schools outperformed students in traditional schools on the state's accountability system over a 5-year time period. Using a quasi-experimental research design, data were…

The effect of the implementation of student response systems (SRSs) in teaching on the critical thinking (CT) of young students was investigated. The study benefited from a quasi-experimental design and a pretest/posttest set-up. Subjects consisted of 156 K-8 students in Tehran during 2016-2017, selected through a multistage cluster sampling, and…

The 2014-2015 academic year marked the first year that American, preK-12 public school enrollment became majority nonwhite, with Hispanic/Latino as the largest minority. Population shifts have continued to occur, with Latinos now representing 28% of public school students. American public schools are in trouble, with national achievement reaching…

The present study describes the characteristics of students in Grades 3-12 with significant cognitive disabilities (SCD) and known hearing loss. The study analyzed results of a survey of teachers of students with SCD (n = 38,367) who were slated to participate in an alternate assessment based on alternate achievement standards in 14 states in the…

In his campaign for Mayor of New York City, Bill de Blasio positioned himself as the candidate most determined to break with the legacy of the outgoing Michael Bloomberg administration. Voters responded enthusiastically, handing de Blasio a nearly 50-point margin of victory in the November 2013 election. De Blasio, a Democrat, interpreted the win…