Education and demonstration – Mathematics – Arithmetic
Patent
1990-07-31
1992-08-18
Apley, Richard J.
Education and demonstration
Mathematics
Arithmetic
434323, 340756, 273434, G09B 1902, G09B 506
Patent
active
051394235
ABSTRACT:
An electronic teaching device (10) provides several mathematical activities including Place Value, Trade, Target, Solve It, Word Problems, Estimate, Select and Calculator. The Place Value activity enhances the understanding of numbers by pictorially displaying the place values. The Trade activity enhances the understanding of addition and subtraction by allowing the user to trade between the ones' place value and the tens' place value to properly perform a mathematical operation. The Target activity emphasizes logical reasoning and problem solving. The Solve It activity uses the place-value system to develop logical reasoning.
The Word Problems activity tests the user's knowledge of basic mathematical terms and facts. The Estimate activity develops the ability to estimate answers to problems. The Select activity allows the user to recognize basic math operations.
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patent: 4340374 (1982-07-01), Culley
patent: 4340375 (1982-07-01), Sakave
patent: 4946391 (1990-08-01), Hawkins et al.
patent: 4959017 (1990-09-01), Thompson et al.
"Decimals", Teaching Elementary School Mathematics, by Riedesel, Chapter 11, pp. 246-251.
"Decimals, Ratio, Proportion, Percent, and Rate", Mathematics Method for the Elementary and Middle School, by Bitter et al., Chapter 11, pp. 329-337.
Bitter Gary G.
Greenberg Robert C.
Howard Veronica B.
McCormack Brian C.
Thornton Glen A.
Apley Richard J.
Donaldson Richard L.
Hiller William E.
Leubecker John
Texas Instruments Incorporated
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