Saturday, May 11, 2019
Rounding with decimals to the nearest tenth Essay
Rounding with decimals to the closest tenth - Essay ExampleThis information should suffice for most students who have a solid institution in the prerequisites. However, weaker students would require not only a good revision of the place order system, round whole exits pool, recognizing decimal numbers etc. beforehand but could also be aided by a visual representation for rounding numbers, and if necessary a flowchart of the procedure given supra (to prevent procedural errors). For the former, the number line is ideal. An example is given below.The comparableity with rounding whole numbers should be stressed. They are not really learning anything new. All they need to be careful with instantly is the decimal point. Thinking along these lines should be reinforced in demonstrating the rounding procedure using the number line (3 examples are given)Five situations are the most likely occasions of problems for students learning to grasp the invention of rounding to the nearest ten th trope. This is given in order of increasing difficulty based on my own experience of teaching children.1. What to do when the digit in the hundredths place is 0 (zero). Zero does blear many students. In this case the student should be reminded that (due to its position in this particular case) it holds no value and it is similar to the situation when the digit in this place is either 1, 2, 3 or 4 i.e. we plainly truncate the number at the tenths position e.g. 1.60 would run 1.6 similar to 1.63 also becoming 1.6.2. What to do when the digit in the hundredths place is 5 (five) perceived as a halfway or middle point. In this case, the teacher needs to remind the rule that we round up when this digit is a 5 and it is similar to the situation when the digit in this place is either 6, 7, 8 or 9 i.e. we simply affix the number in the tenths position by 1 and leave out the 5 (the hundredth digit) e.g. 1.65 would become 1.7 similar to 1.67
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