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Journal of Learning Disabilities

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https://www.readbyqxmd.com/read/28942712/developmental-dyscalculia-in-adults-beyond-numerical-magnitude-impairment
#1
Alice De Visscher, Marie-Pascale Noël, Mauro Pesenti, Valérie Dormal
Numerous studies have tried to identify the core deficit of developmental dyscalculia (DD), mainly by assessing a possible deficit of the mental representation of numerical magnitude. Research in healthy adults has shown that numerosity, duration, and space share a partly common system of magnitude processing and representation. However, in DD, numerosity processing has until now received much more attention than the processing of other non-numerical magnitudes. To assess whether or not the processing of non-numerical magnitudes is impaired in DD, the performance of 15 adults with DD and 15 control participants was compared in four categorization tasks using numerosities, lengths, durations, and faces (as non-magnitude-based control stimuli)...
September 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28891762/reading-and-phonological-awareness-in-africa
#2
Katherine J Alcock, Damaris S Ngorosho, Matthew C H Jukes
Literacy levels in Africa are low, and school instruction outcomes are not promising. Africa also has a disproportionate number of unschooled children. Phonological awareness (PA), especially phoneme awareness, is critically associated with literacy, but there is little evidence about whether PA is gained through literacy, schooling, or both, because most children studied are in education and can read at least letters. Our previous study of PA and reading in children in and out of school in Tanzania found that PA was associated with reading ability, not schooling or age, and many unschooled children learned to read...
September 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/29017428/editor-farewell
#3
H Lee Swanson
No abstract text is available yet for this article.
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/29017427/fraction-intervention-for-students-with-mathematics-difficulties-lessons-learned-from-five-randomized-controlled-trials
#4
Lynn S Fuchs, Amelia S Malone, Robin F Schumacher, Jessica Namkung, Amber Wang
In this article, the authors summarize results from 5 randomized controlled trials assessing the effects of intervention to improve the fraction performance of fourth-grade students at risk for difficulty in learning about fractions. The authors begin by explaining the importance of competence with fractions and why an instructional focus on fractions magnitude understanding may improve learning. They then describe an intervention that relies strongly on this type of understanding about fractions instruction, and they provide an overview of the intervention's overall effects...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27895239/making-space-for-spatial-proportions
#5
Percival G Matthews, Edward M Hubbard
The three target articles presented in this special issue converged on an emerging theme: the importance of spatial proportional reasoning. They suggest that the ability to map between symbolic fractions (like 1/5) and nonsymbolic, spatial representations of their sizes or magnitudes may be especially important for building robust fractions knowledge. In this commentary, we first reflect upon where these findings stand in a larger theoretical context, largely borrowed from mathematics education research. Next, we emphasize parallels between this work and emerging work suggesting that nonsymbolic proportional reasoning may provide an intuitive foundation for understanding fraction magnitudes...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27608654/remediation-for-students-with-mathematics-difficulties-an-intervention-study-in-middle-schools
#6
Elisabeth Moser Opitz, Okka Freesemann, Susanne Prediger, Urs Grob, Ina Matull, Stephan Hußmann
As empirical studies have consistently shown, low achievement in mathematics at the secondary level can often be traced to deficits in the understanding of certain basic arithmetic concepts taught in primary school. The present intervention study in middle schools evaluated whether such learning deficits can be reduced effectively and whether the type of instruction influences students' progress. The sample consisted of 123 students in 34 classes, split among one control group and two intervention groups: (a) small group instruction and (b) independent work partially integrated into regular classrooms...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27553037/predictive-validity-of-curriculum-embedded-measures-on-outcomes-of-kindergarteners-identified-as-at-risk-for-reading-difficulty
#7
Eric L Oslund, Shanna Hagan-Burke, Deborah C Simmons, Nathan H Clemens, Leslie E Simmons, Aaron B Taylor, Oi-Man Kwok, Michael D Coyne
This study examined the predictive validity of formative assessments embedded in a Tier 2 intervention curriculum for kindergarten students identified as at risk for reading difficulty. We examined when (i.e., months during the school year) measures could predict reading outcomes gathered at the end of kindergarten and whether the predictive validity of measures changed across the kindergarten year. Participants consisted of 137 kindergarten students whose reading development was assessed four times from October to February...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27520430/life-on-the-number-line-routes-to-understanding-fraction-magnitude-for-students-with-difficulties-learning-mathematics
#8
Russell Gersten, Robin F Schumacher, Nancy C Jordan
Magnitude understanding is critical for students to develop a deep understanding of fractions and more advanced mathematics curriculum. The research reports in this special issue underscore magnitude understanding for fractions and emphasize number lines as both an assessment and an instructional tool. In this commentary, we discuss how number lines broaden the concept of fractions for students who are tied to the more general part-whole representations of area models. We also discuss how number lines, compared to other representations, are a superior and more mathematically correct way to explain fraction concepts...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27516407/prevalence-of-ld-from-parental-and-professional-perspectives-a-comparison-of-the-data-from-the-national-survey-of-children-s-health-and-the-office-of-special-education-programs-reports-to-congress
#9
Paige C Pullen
Since the emergence of the field of learning disabilities (LD) in the late 1960s and early 1970s, controversy has surrounded issues regarding methods used for identification. The prevalence of students identified as LD increased steadily from the 1970s until the beginning of the 21st century, at which time it has decreased until at least 2011 (the most current data available from the U.S. Office of Education). In this article, I compare the prevalence rates of children aged 6 to 17 years being served in schools according to the Office of Special Education Programs with the prevalence rates as reported by parents on the National Survey of Children's Health...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27506552/fraction-sense-foundational-understandings
#10
Francis Skip Fennell, Karen Karp
The intent of this commentary is to identify elements of fraction sense and note how the research studies provided in this special issue, in related but somewhat different ways, validate the importance of such understandings. Proficiency with fractions serves as a prerequisite for student success in higher level mathematics, as well as serving as a gateway to many occupations and varied contexts beyond the mathematics classroom. Fraction sense is developed through instructional opportunities involving fraction equivalence and magnitude, comparing and ordering fractions, using fraction benchmarks, and computational estimation...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27506551/delaware-longitudinal-study-of-fraction-learning-implications-for-helping-children-with-mathematics-difficulties
#11
Nancy C Jordan, Ilyse Resnick, Jessica Rodrigues, Nicole Hansen, Nancy Dyson
The goal of the present article is to synthesize findings to date from the Delaware Longitudinal Study of Fraction Learning. The study followed a large cohort of children ( N = 536) between Grades 3 and 6. The findings showed that many students, especially those with diagnosed learning disabilities, made minimal growth in fraction knowledge and that some showed only a basic grasp of the meaning of a fraction even after several years of instruction. Children with low growth in fraction knowledge during the intermediate grades were much more likely to fail to meet state standards on a broad mathematics measure at the end of Grade 6...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27506550/introduction-to-the-special-series-on-fraction-learning
#12
Russell Gersten, Nancy C Jordan
No abstract text is available yet for this article.
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27491474/fractions-learning-in-children-with-mathematics-difficulties
#13
Jing Tian, Robert S Siegler
Learning fractions is difficult for children in general and especially difficult for children with mathematics difficulties (MD). Recent research on developmental and individual differences in fraction knowledge of children with MD and typically achieving (TA) children has demonstrated that U.S. children with MD start middle school behind their TA peers in fraction understanding and fall further behind during middle school. In contrast, Chinese children, who like the MD children in the United States score in the bottom one third of the distribution in their country, possess reasonably good fraction understanding...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27457266/improving-the-historical-knowledge-and-writing-of-students-with-or-at-risk-for-ld
#14
Susan De La Paz, Daniel R Wissinger
In this study, we explored the potential of two forms of discussion (disciplinary vs. traditional) for 39 sixth- and seventh-grade students with or at risk for learning disabilities (LD), before writing historical arguments. Nine teachers who led small group discussions in six heterogeneous social studies classrooms implemented the intervention. Students who were involved in disciplinary discussions ( n = 19) scored statistically higher than their peers who engaged in traditional discussions ( n = 20) on a measure of historical knowledge (partial η(2) = ...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27432654/why-learning-common-fractions-is-uncommonly-difficult-unique-challenges-faced-by-students-with-mathematical-disabilities
#15
Daniel B Berch
In this commentary, I examine some of the distinctive, foundational difficulties in learning fractions and other types of rational numbers encountered by students with a mathematical learning disability and how these differ from the struggles experienced by students classified as low achieving in math. I discuss evidence indicating that students with math disabilities exhibit a significant delay or deficit in the numerical transcoding of decimal fractions, and I further maintain that they may face unique challenges in developing the ability to effectively translate between different types of fractions and other rational number notational formats-what I call conceptual transcoding...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27422161/the-concept-of-magnitude-and-what-it-tells-us-about-how-struggling-students-learn-fractions
#16
John Woodward
This commentary summarizes emerging research into fractions instruction for students who are at risk for failure. Each of the three articles emphasizes a measure conception of fractions. Teaching fractions as measurement helps students learn the magnitude of rational numbers. However, measurement is only part of the way that students should conceptualize fractions. Instruction also needs to emphasize fractions as division. The article also draws attention to the teaching qualifications of those who typically instruct at-risk students in Tier 2 and 3 settings...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27222490/when-average-is-not-good-enough-students-with-learning-disabilities-at-selective-private-colleges
#17
Robert Weis, Celeste P Erickson, Christina H Till
Adolescents with learning disabilities disproportionately come from lower socioeconomic status backgrounds, show normative deficits in academic skills, and attend 2-year, public colleges instead of 4-year institutions. However, students with learning disabilities are well represented at the United States' most expensive and selective postsecondary institutions. We examined the psychoeducational functioning of students receiving accommodations for learning disabilities at a private, selective, liberal arts college...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27015671/the-mental-number-line-in-dyscalculia-impaired-number-sense-or-access-from-symbolic-numbers
#18
Anne Lafay, Marie-Catherine St-Pierre, Joël Macoir
Numbers may be manipulated and represented mentally over a compressible number line oriented from left to right. According to numerous studies, one of the primary reasons for dyscalculia is related to improper understanding of the mental number line. Children with dyscalculia usually show difficulty when they have to place Arabic numbers on a physical number line. However, it remains unclear whether they have a deficit with the mental number line per se or a deficit with accessing it from nonsymbolic and/or symbolic numbers...
November 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27608655/working-memory-load-and-reminder-effect-on-event-based-prospective-memory-of-high-and-low-achieving-students-in-math
#19
Youzhen Chen, Rong Lian, Lixian Yang, Jianrong Liu, Yingfang Meng
The effects of working memory (WM) demand and reminders on an event-based prospective memory (PM) task were compared between students with low and high achievement in math. WM load (1- and 2-back tasks) was manipulated as a within-subject factor and reminder (with or without reminder) as a between-subject factor. Results showed that high-achieving students outperformed low-achieving students on all PM and n-back tasks. Use of a reminder improved PM performance and thus reduced prospective interference; the performance of ongoing tasks also improved for all students...
September 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27164994/writing-disabilities-in-spanish-speaking-children-introduction-to-the-special-series
#20
Juan E Jiménez
This special issue of the Journal of Learning Disabilities focuses on studies of writing disabilities in Spanish-speaking children. The World Health Organization (2001) included writing difficulties as one of the problems considered to constitute an impediment to school participation, a significant element in the normal developmental process of the child. In this introduction, I describe the background of a larger project promoted by the United Nations Educational, Scientific and Cultural Organization (UNESCO)...
September 2017: Journal of Learning Disabilities
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