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| Duncan, David R. | 14 |
| Litwiller, Bonnie H. | 12 |
| Litwiller, Bonnie | 1 |
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| Journal Articles | 1 |
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| Practitioners | 4 |
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Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Mathematics Teacher, 1971
Descriptors: Instruction, Mathematics, Number Concepts, Teaching Methods
Litwiller, Bonnie H.; Duncan, David R. – Mathematics Teaching, 1974
An activity which involves the drawing of geometric designs on familiar number arrangements (such as the addition and multiplication tables and the hundred chart) is used to help students discover patterns and at the same time maintain computation skills. (DT)
Descriptors: Instruction, Learning Activities, Mathematics Education, Number Concepts
Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Mathematics Teacher, 1973
Descriptors: Instruction, Mathematical Applications, Mathematical Enrichment, Mathematics Education
Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Mathematics Teacher, 1979
The simultaneous solution of equations in polar form does not always yield the points of intersection of their graphs. An explanation is given. (MP)
Descriptors: Algebra, Analytic Geometry, Graphs, Instruction
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – School Science and Mathematics, 1978
A formula for predicting population, given past data, is presented. Decade census reports for the United States are used to analyze problems that might occur in prediction. (MP)
Descriptors: Instruction, Mathematical Applications, Mathematics, Population Growth
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – School Science and Mathematics, 1974
Descriptors: Addition, Elementary School Mathematics, Instruction, Mathematical Enrichment
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – School Science and Mathematics, 1973
A recreational activity providing practice in computation is described. Examples are provided and the underlying mathematics is analyzed. (DT)
Descriptors: Elementary School Mathematics, Instruction, Mathematical Enrichment, Mathematics Education
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – Mathematics Teacher, 1976
A geometric area problem is analyzed and generalized. (DT)
Descriptors: Elementary Secondary Education, Geometric Concepts, Instruction, Learning Activities
Peer reviewedDuncan, David R.; And Others – School Science and Mathematics, 1976
Weather data gathered from the local newspaper can be used in teaching a unit on statistics. (SD)
Descriptors: Data Collection, Graphs, Instruction, Mathematical Applications
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – Mathematics Teacher, 1977
Ten problems involving large calculations are described for classroom use with a calculator. (JT)
Descriptors: Calculators, Computation, Instruction, Learning Activities
Peer reviewedLitwiller, Bonnie; Duncan, David R. – Mathematics Teacher, 1977
The probabilities of six-card poker hands are derived and compared to those of the five-card poker hands. (JT)
Descriptors: College Mathematics, Games, Higher Education, Instruction
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – Arithmetic Teacher, 1974
Descriptors: Elementary School Mathematics, Games, Instruction, Learning Activities
Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – School Science and Mathematics, 1976
Tables of life expectancy can provide data for use in a great variety of problems related to probability theory. (SD)
Descriptors: Curriculum, Instruction, Learning Activities, Mathematical Applications
Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Mathematics Teacher, 1976
Patterns emerging when two-digit numbers in various bases are operated on by squaring and summing the digits. (SD)
Descriptors: Instruction, Learning Activities, Mathematics, Mathematics Education
