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Patti, Paul J. – 1994

This study identified 10 savants with developmental disabilities and an exceptional ability to calculate calendar dates. These "calendar calculators" were asked to demonstrate their abilities, and their strategies were analyzed. The study found that the ability to calculate dates into the past or future varied widely among these…

Descriptors: Autism, Cognitive Processes, Computation, Developmental Disabilities

Peer reviewed

Levine, Deborah R. – Journal for Research in Mathematics Education, 1982

Relations among the number and types of strategies used by 89 college students when estimating, quantitative ability, and computational estimation ability were investigated. Students of relatively high quantitative ability were found to be better estimators and used more strategy types. (MP)

Descriptors: Basic Skills, Cognitive Processes, Computation, Educational Research

Smeets, Paul M.; And Others – Analysis and Intervention in Developmental Disabilities, 1984

The study evaluated an errorless procedure for teaching nine educable mentally retarded students to solve missing minuend problems. Seven Ss acquired the target skill in a nearly errorless fashion in 75 to 172 minutes of individual training time. The other Ss required programatic alterations. (Author/CL)

Descriptors: Computation, Elementary Education, Generalization, Mild Mental Retardation

Koller, Elayne Z.; Mulhern, Thomas J. – Education and Training of the Mentally Retarded, 1977

Descriptors: Adolescents, Arithmetic, Calculators, Computation

Koller, Elayne Z.; Mulhern, Thomas J. – Journal for Special Educators of the Mentally Retarded, 1977

For journal availability, see EC 092 078.

Descriptors: Adolescents, Arithmetic, Computation, Electromechanical Aids

Peer reviewed

Fielker, David S. – For the Learning of Mathematics, 1986

How children perceive doubling and halving numbers is discussed, with many examples. The use of calculators is integrated. The tendency to avoid division if other ways of solving a problem can be found was noted. (MNS)

Descriptors: Calculators, Cognitive Processes, Computation, Division

Peer reviewed

Pesenti, Mauro; Seron, Xavier; Samson, Dana; Duroux, Bruno – Mathematical Cognition, 1999

Describes the basic and exceptional calculation abilities of a calculating prodigy whose performances were investigated in single- and multi-digit number multiplication, numerical comparison, raising of powers, and short-term memory tasks. Shows how his highly efficient long-term memory storage and retrieval processes, knowledge of calculation…

Descriptors: Case Studies, Cognitive Ability, Elementary Secondary Education, Mathematics Education

Horton, Steven – Education and Training of the Mentally Retarded, 1985

A calculator intervention produced a marked increase in correct computational performance of eight educable mentally retarded adolescents over baseline for addition, subtraction, multiplication, and division problems. Use of calculators enabled Ss to complete relatively complex arithmetic problems with greater accuracy than nonhandicapped Ss…

Descriptors: Calculators, Computation, Mild Mental Retardation, Program Evaluation

Ogletree, Earl J.; Chavez, Maria – 1980

An approach to teaching mildly retarded children math skills using finger calculation is discussed. Drills progress from using one to two hands and doing multiplication and division. The appropriateness of finger calculation with children in the sensory motor and preoperational stages of development is noted, and the approach's ability to enhance…

Descriptors: Computation, Elementary Education, Mathematics Instruction, Mild Mental Retardation

Peer reviewed

Ho, Eric D. F.; And Others – Journal of Autism and Developmental Disorders, 1991

A Chinese mentally retarded calendar savant (age 19) was evaluated for his exceptional proficiency in calendar calculation including converting the Gregorian calendar to the Chinese calendar. Results did not support hypotheses of use of eidetic imagery, high speed calculation, rote memorization, or keying-off (anchoring) strategies. (Author/DB)

Descriptors: Case Studies, Cognitive Ability, Cognitive Processes, Computation

Peer reviewed

Breakey, William R.; Fischer, Pamela J. – Journal of Social Issues, 1990

Surveys the many categories of people comprising the homeless population and describes the methods that have been used to estimate their numbers. Concludes that the vast effort required to enumerate homeless people would be better directed toward focused research on the needs of identifiable subgroups. (DM)

Descriptors: Acquired Immune Deficiency Syndrome, Computation, Homeless People, Mental Disorders

Bove, Francis – 2003

This basic math skills teaching and learning guide contains practical advice and resources for British vocational teachers who have little formal mathematics education training and for beginning teachers. The document has five sections on these topics dealing with numeracy instruction: (1) overview of the basic skill and its application to other…

Descriptors: Academic Achievement, Academic Standards, Adult Educators, Adult Students

Peer reviewed

McIntosh, Alistair; And Others – For the Learning of Mathematics, 1992

Proposes a framework that identifies the components of number sense and the attributes of students who possess it. Discusses various aspects of three areas where number sense plays a key role: number concepts, operations with numbers, and applications of number and operation. (MDH)

Descriptors: Cognitive Structures, Computation, Elementary Education, Elementary School Mathematics

Peer reviewed

Frankenstein, Marilyn – Mathematics Teacher, 1984

Example of magic tricks that can be used as an integral part of various lessons in arithmetic and algebra are given. Their mathematical basis is also discussed. (MNS)

Descriptors: Algebra, Arithmetic, Elementary Secondary Education, Learning Activities

Peer reviewed

Gladwin, Hugh – Anthropology and Education Quarterly, 1985

Presents concluding remarks to a symposium, "The Social Organization of Knowledge and Practice." Focuses on high aptitude of persons in everyday situations to solve problems and make decisions. Addresses three questions: (1) What happens when a problem-solver reaches a situation involving calculation? (2) How does learning transfer take place? and…

Descriptors: Arithmetic, Classroom Environment, Cognitive Style, Daily Living Skills