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Hyde, Daniel C.; Winkler-Rhoades, Nathan; Lee, Sang-Ah; Izard, Veronique; Shapiro, Kevin A.; Spelke, Elizabeth S. – Neuropsychologia, 2011

We studied the cognitive abilities of a 13-year-old deaf child, deprived of most linguistic input from late infancy, in a battery of tests designed to reveal the nature of numerical and geometrical abilities in the absence of a full linguistic system. Tests revealed widespread proficiency in basic symbolic and non-symbolic numerical computations…

Descriptors: Spatial Ability, Nonverbal Ability, Numbers, Geometric Concepts

Orsini, A.; Pezzuti, L.; Hulbert, S. – Journal of Intellectual Disability Research, 2015

Background: It is now widely known that children with severe intellectual disability show a 'floor effect' on the Wechsler scales. This effect emerges because the practice of transforming raw scores into scaled scores eliminates any variability present in participants with low intellectual ability and because intelligence quotient (IQ) scores are…

Descriptors: Severe Mental Retardation, Raw Scores, Scores, Foreign Countries

Liu, Ru-De; Ding, Yi; Xu, Le; Wang, Jia – Journal of Educational Research, 2017

The authors' aim was to examine the relation between two-digit mental multiplication and working memory. In Study 1, involving 30 fifth-grade students, we used digit span backward as an abbreviated measure of working memory. In Study 2, involving 41 fourth-grade students, working memory comprised measures of phonological loop, visuospatial…

Descriptors: Short Term Memory, Mental Computation, Multiplication, Elementary School Students

Peer reviewed

Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1987

The focus is on suggestions for teaching rounding wisely as an estimation strategy. (MNS)

Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Learning Activities

Peer reviewed

Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1986

Four ways of knowing about numbers are listed, with direct estimation emphasized. Using perceptual anchors is described, with several teaching tips on their use in estimation. (MNS)

Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Mathematics Instruction

Peer reviewed

Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1987

Estimation of measurements is discussed, with a definition, rationale, strategies, teaching suggestions, and several references. (MNS)

Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Mathematics Instruction

Peer reviewed

Schoen, Harold L. – Arithmetic Teacher, 1987

Front-end estimation is discussed, with several examples, teaching tips, testing tips, and some references on research and additional activities. (MNS)

Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Learning Activities

Peer reviewed

Coburn, Terrence C. – Arithmetic Teacher, 1987

Ideas are given on how to teach children to make estimates in measurement. (MNS)

Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Learning Activities

Fung, Maria G.; Latulippe, Christine L. – Teaching Children Mathematics, 2010

Elementary school teachers are responsible for constructing the foundation of number sense in youngsters, and so it is recommended that teacher-training programs include an emphasis on number sense to ensure the development of dynamic, productive computation and estimation skills in students. To better prepare preservice elementary school teachers…

Descriptors: Preservice Teachers, Number Systems, Mathematics Teachers, Elementary School Teachers

Browder, Diane M.; Spooner, Fred; Ahlgrim-Delzell, Lynn; Harris, Amber A.; Wakeman, Shawnee – Exceptional Children, 2008

This article reports on a comprehensive literature review and meta-analysis of 68 experiments on teaching mathematics to individuals with significant cognitive disabilities. Most of the studies in the review addressed numbers and computation or measurement. Within the computation studies identified, most focused on counting, calculation, or number…

Descriptors: Research Design, Mathematics Teachers, Mathematics Instruction, Mental Retardation

Barner, David; Alvarez, George; Sullivan, Jessica; Brooks, Neon; Srinivasan, Mahesh; Frank, Michael C. – Child Development, 2016

Mental abacus (MA) is a technique of performing fast, accurate arithmetic using a mental image of an abacus; experts exhibit astonishing calculation abilities. Over 3 years, 204 elementary school students (age range at outset: 5-7 years old) participated in a randomized, controlled trial to test whether MA expertise (a) can be acquired in standard…

Descriptors: Mathematics Education, Randomized Controlled Trials, Spatial Ability, Mental Computation

Tataw, Oben Moses – ProQuest LLC, 2013

Interdisciplinary research in computer science requires the development of computational techniques for practical application in different domains. This usually requires careful integration of different areas of technical expertise. This dissertation presents image and time series analysis algorithms, with practical interdisciplinary applications…

Descriptors: Biology, Computation, Imagery, Time

Suydam, Marilyn N., Ed. – 1983

These two bulletins were developed for the Calculator Information Center. "Motivating Activities for Low (and Higher) Achievers," prepared by Don Miller, presents activities that suggest ways in which a calculator can be used to help reinforce or develop certain mathematical ideas. Included are sections with activities for numeration, mental…

Descriptors: Calculators, Elementary School Mathematics, Elementary Secondary Education, Instructional Materials

Woods, Dawn Marie; Ketterlin Geller, Leanne; Basaraba, Deni – Intervention in School and Clinic, 2018

A strong foundation in early number concepts is critical for students' future success in mathematics. Research suggests that visual representations, like a number line, support students' development of number sense by helping them create a mental representation of the order and magnitude of numbers. In addition, explicitly sequencing instruction…

Descriptors: Number Concepts, Numbers, Numeracy, Visual Aids

Bengtson, Barbara J. – ProQuest LLC, 2013

Understanding the linear relationship of numbers is essential for doing practical and abstract mathematics throughout education and everyday life. There is evidence that number line activities increase learners' number sense, improving the linearity of mental number line representations (Siegler & Ramani, 2009). Mental representations of…

Descriptors: Numbers, Mathematics Education, Numeracy, Cognitive Processes