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Rounding with Mixed Decimals
Pages 4 (1004 words)
Decimal numbers such as 3.762 are used in situations which call for more precision than whole numbers provide" (Math League, 2008, pg. 1). The purpose of this assignment is to thoroughly describe how one would teach rounding decimals to the nearest tenth.
Adding extra zeros to the right of the last decimal digit does not change the value of the decimal number (Math League, 2008, pg. 1).
Children should also be familiar with the whole number portion and with naming what digit is in what place. For instance, in 14.65, the whole number portion is 14. An example of the latter can be illustrated with 4.165. In this number, 4 is in the ones place, 1 is in the tenths place, 6 is in the hundredths place, and 5 is in the thousandths place (Math League, 2008, pg. 2).
A variety of specific examples or tasks can be used to check student understanding of rounding with decimals to the nearest tenth and to detect the existence of any possible conceptual and/or procedural errors. First of all, if the assignments are being conducted via paper and pencil, traditional assessment instruments such as the paper test can be used to measure success or detect weak areas. Second of all, if the assignments are being conducted via computer software drills, the software often gives immediate feedback that can be used to detect any strengths and weaknesses that students may have. ...
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