Skill development in different components of arithmetic and basic cognitive functions: Findings from a 3-year longitudinal study of children with different types of …

U Andersson - Journal of educational psychology, 2010 - psycnet.apa.org
Arithmetic and cognitive skills of children with mathematical difficulties (MD-only), with
comorbid reading difficulties (MD-RD), with reading difficulties (RD-only), and normally …

Cognitive arithmetic and problem solving: A comparison of children with specific and general mathematics difficulties

NC Jordan, TO Montani - Journal of learning disabilities, 1997 - journals.sagepub.com
This study examined problem-solving and number-fact skills in two subgroups of third-grade
children with mathematics difficulties (MD): MD-specific (n= 12) and MD-general (n= 12) …

Performance across different areas of mathematical cognition in children with learning difficulties.

LB Hanich, NC Jordan, D Kaplan… - Journal of educational …, 2001 - psycnet.apa.org
The performance of 210 2nd graders in different areas of mathematical cognition was
examined. Children were divided into 4 achievement groups: children with difficulties in …

Numerical and arithmetical cognition: A longitudinal study of process and concept deficits in children with learning disability

DC Geary, CO Hamson, MK Hoard - Journal of experimental child …, 2000 - Elsevier
Based on the stability and level of performance on standard achievement tests in first and
second grade (mean age in first grade= 82 months), children with IQ scores in the low …

[PDF][PDF] Learning disabilities in arithmetic: Problem-solving differences and cognitive deficits

DC Geary - Handbook of learning disabilities, 2003 - Citeseer
The complexity of the field of mathematics makes the study of any associated learning
disability daunting. In theory, a mathematical learning disability can result from deficits in the …

Mathematical cognition deficits in children with learning disabilities and persistent low achievement: a five-year prospective study.

DC Geary, MK Hoard, L Nugent… - Journal of educational …, 2012 - psycnet.apa.org
First-to fifth-grade mathematics and word reading achievement were assessed for children
with mathematical learning disability (MLD, n= 16), persistent low achievement (LA, n= 29) …

Mathematical competencies in children with different types of learning difficulties.

U Andersson - Journal of Educational Psychology, 2008 - psycnet.apa.org
The mathematical performance of 182 third and fourth graders in 8 different areas of
mathematics was examined. The children belonged to 4 achievement groups: children with …

Numerical and arithmetical cognition: Patterns of functions and deficits in children at risk for a mathematical disability

DC Geary, MK Hoard, CO Hamson - Journal of experimental child …, 1999 - Elsevier
Based on performance on standard achievement tests, first-grade children (mean age= 82
months) with IQ scores in the low-average to high-average range were classified as at risk …

A longitudinal study of mathematical competencies in children with specific mathematics difficulties versus children with comorbid mathematics and reading difficulties

NC Jordan, LB Hanich, D Kaplan - Child development, 2003 - Wiley Online Library
Mathematical competencies of 180 children were examined at 4 points between 2nd and
3rd grades (age range between 7 and 9 years). Children were initially classified into one of …

Developmental differences in solving simple arithmetic word problems and simple number-fact problems: A comparison of mathematically normal and mathematically …

SA Ostad - Mathematical Cognition, 1998 - Taylor & Francis
The research reported in this paper was designed in a cross-sectional perspective to
examine differences between mathematically disabled children (MD children) and …