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Reys, Barbara J., Ed. | 7 |
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Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1986
Use of an ancient method of mental calculation with aliquot parts is illustrated. Other tips for helping children reason are also included. (MNS)
Descriptors: Elementary Education, Elementary School Mathematics, Mathematics Instruction, Mental Computation

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

Reys, Barbara J. – Arithmetic Teacher, 1986
What mental computation and estimation are, what is known from research about each process, and what can help students develop these skills are discussed. (MNS)
Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Mathematics Instruction

Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1986
Using factoring as an aid to mental multiplication is illustrated. Other suggestions for teaching mental computation are also included. (MNS)
Descriptors: Computation, Elementary Education, Elementary School Mathematics, Mathematics Instruction

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

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

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

Moore, Theodore F. – Mathematics Teacher, 1986
Presents a technique for multiplying two-digit numbers whose tens digits are equal and whose units digits have a sum of 10. Then various mental calculations with other types of two-digit and larger numbers are discussed. (MNS)
Descriptors: Computation, Learning Activities, Mathematics Instruction, Mental Computation

Hampel, Paul J. – Arithmetic Teacher, 1984
A program is given which offers students a chance to practice mental computation and judge the effects of various rules for formating output. (MNS)
Descriptors: Computer Oriented Programs, Computer Software, Elementary Secondary Education, Mathematics Education

Dietz, Charles – Perspectives in Education and Deafness, 1993
Strategies for rapid mental computation are explained, including multiplying by 11 (or 21, 31, etc.); adding columns of numbers; and multiplying 2-digit numbers. Rapid mental computation is suggested as a motivator for investigating the underlying mathematical principles. (DB)
Descriptors: Algorithms, Computation, Elementary Secondary Education, Learning Strategies

French, Doug – Mathematics in School, 1987
Choosing mental, written, or calculator procedures is important for children to learn. Children should be encouraged to be flexible and consider alternatives when doing mental calculation. Developing mental skills, symbols and rules, and numbers in context are each considered. (MNS)
Descriptors: Cognitive Processes, Computation, Elementary Education, Elementary School Mathematics

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

Reys, Barbara J.; Reys, Robert E. – Arithmetic Teacher, 1986
After summing up the current status related to estimation and mental computation, what needs to be done to promote increased instruction on these topics is discussed. (MNS)
Descriptors: Editorials, Educational Change, Elementary Education, Elementary School Mathematics

Sowder, Judith T. – Arithmetic Teacher, 1990
Discusses mental computation and how and when it should be taught. Describes seven properties of mental algorithms. (YP)
Descriptors: Arithmetic, Computation, Elementary Education, Elementary School Mathematics

Reys, Robert E., Ed.; Reys, Barbara J., Ed. – Arithmetic Teacher, 1986
Activities on estimation and mental computation are presented. Patterns on a hundred chart, an amazing fact, teaching and testing tips, and other references are included. (MNS)
Descriptors: Elementary Education, Elementary School Mathematics, Estimation (Mathematics), Learning Activities