This study's purpose was to investigate effects of 3 intervention approaches for building working memory (WM) and improving word-problem solving (WPS). Children with mathematics difficulties (n = 240; 7.51 years [SD = 0.33]) were randomized to 4 conditions: a control group, general WM training with contiguous math practice, WPS intervention…

This study's purpose was to investigate effects of 3 intervention approaches for building working memory (WM) and improving word-problem solving (WPS). Children with mathematics difficulties (n = 240; 7.51 years [SD = 0.33]) were randomized to 4 conditions: a control group, general WM training with contiguous math practice, WPS intervention…

This article examines the effect of Teach For America (TFA) on the distribution of student achievement in elementary school. It extends previous research by estimating quantile treatment effects (QTE) to examine how student achievement in TFA and non-TFA classrooms differs across the broader distribution of student achievement. It also updates…

The 2011 study, "Benefits of Practicing 4 = 2 + 2: Nontraditional Problem Formats Facilitate Children's Understanding of Mathematical Equivalence," examined the effects of addition practice using nontraditional problem formats on students' understanding of mathematical equivalence. In nontraditional problem formats, operations appear on…

The primary goal of Project M[superscript 2] was to develop and field-test challenging geometry and measurement units for all K-2 students. This article reports on the achievement results for students in Grade 2 at 12 urban and suburban sites in 4 states using the Iowa Tests of Basic Skills (ITBS) mathematics concepts subtest and an open-response…

In 2003, Chicago schools required students entering ninth grade with below-average math scores to take two periods of algebra. This led to higher test scores for students with both above- and below-average skills, yet failure rates increased for above-average students. We examine the mechanisms behind these surprising results. Sorting by incoming…

Despite the potential of differentiated curricula to enhance learning, limited research exists that documents their impact on Grade 3 students of all ability levels. To determine if there was a difference in achievement between students involved in 16 weeks of predifferentiated, enriched mathematics curricula and students using their district's…

A variety of research has pointed to the interdependent linkage among vocabulary knowledge, reading comprehension, and level of literacy. With this point in mind, the present study addressed the question of whether student vocabulary acquisition could be accelerated by using a multi-part, semantic word-family-oriented learning strategy to…

A study determined the effectiveness of the "Direct Instruction" program on the reading achievement of sixth-grade students. "Direct Instruction," known as "Distar" in the 1960s, is a phonic-based method that uses scripted lesson plans engaging students to learn by memory and classroom responses. Subjects were 30…

A study investigated whether third graders who attended preschool had significantly higher reading achievement scores than students who did not attend preschool. Subjects were 60 students at a public school located in a predominantly low and low middle socioeconomic neighborhood on the south side of Chicago, Illinois. Half the students had…

Noting that existing research reveals considerable diversity among researchers' philosophical stances toward literature-based reading instruction versus traditional basal reading instruction, a study determined what effects literature-based instruction had on the reading achievement of fourth graders. Subjects, fourth-grade students of the John P.…

A study examined the effect of Direct Instruction (DI) on the reading achievement of sixth graders. Subjects were 72 Chicago Public School students, nearly 100% minority. In the school year of 1994-95 no students received DI. A sample of 30 students who performed poorly, with stanines of 1, 2, and 3 on the Iowa Tests of Basic Skills (ITBS) were…

A study examined the effect of direct instruction on increasing students' reading competency. The study followed several studies done between 1977 and 1995 on the Direct Instruction Model for reading instruction, developed and implemented in the 1960s. The population of the 2-year study included 105 southwest Chicago area third-grade students from…

A study examined the effectiveness of the Reading Recovery program. Subjects were 60 third-grade students (100% minority students) from the midwest who came from low and middle-to-low socioeconomic status. Half of the students received Reading Recovery in first grade, half did not. Comparison of Iowa Tests of Basic Skills scores indicated no…

A study examined whether departmentalization affected the reading achievement of sixth-grade students attending a Chicago public school. A random sample of 30 students was chosen from a group of 53 who received instruction in a departmentalized program. A second random sample of 30 was selected from a total of 54 students who received instruction…