Mathematics - Years 11-13 - Playlist - Rounding decimals to the nearest whole numbers (whiteboard long)

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Rounding decimals to the nearest whole numbers (whiteboard long)
Subject: Mathematics
Grade: Years 11-13
Resource types: Playlist

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Publish date

2008-02-07

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Resources structure Years 11-13 Mathematics II. Numbers and the Number System (1) 10. Rounding numbers VII. Numbers and the Number System (2) 45. Rounding numbers

Keywords
number, whole, numbers, natural, earth, radius, price, regular, round, sphere, rule, euro, integer, decimal, decimals, ten, rounding, nearest, equatorial, whole numbers, whole number, natural number, equatorial radius, nearest ten, natural numbers, nearest whole number, regular price, nearest integer, (whiteboard, long), rounding decimals to the nearest whole numbers (whiteboard long)

	Type	Name
1.		[Description] Lesson description Teacher gives the goals of the lesson.
2.		[Animation] The Earth Teacher shows the animation recalling how to round natural numbers to the nearest 10.
3.		[Whiteboard exercise] Rounding natural numbers to the nearest 10 Teacher shows the problem and asks one student to solve the activity on the whiteboard.
4.		[Animation] Rounding decimals to a whole number Teacher shows the animation telling how to round decimals to whole numbers.
5.		[Whiteboard exercise] On the number line Teacher shows the problem and solves the first example. Then, teacher asks one student to solve the second example.
6.		[Description] The rule of rounding decimals to the nearest whole numbers Teacher helps the students to form the rule of rounding decimals to the nearest whole numbers. If the first digit after the point is 5 or more, we have to add 1 to the units digit. If the first digit after the point is smaller than 5, we do not change the units digit.Students try to form the rule. Then, write the correct version in notebooks.
7.		[Whiteboard exercise] Rounding decimals to the nearest whole number Teacher shows the problem and marks the first decimal. Then, teacher asks one student to tell what is the rounding of this decimal to the nearest whole number. Successive examples are solved in the same way.
8.		[Whiteboard exercise] The nearest integer Teacher shows the problem and asks four students to solve the activity.
9.		[Whiteboard exercise] What should Lena choose? Teacher shows the problem and asks one student to give rounding of four decimals. Teacher writes the results into the table. Then, teacher asks another two students to sum the regular prices and prices rounded to 1 euro. After filling in the table, one student answers the question given in the instruction.
10.		[File] What should Yoko choose? Teacher gives the printed sheets to the students. They should solve the exercise and give back the sheet in 10 minutes.
11.		[Description] Summing up Teacher sums up the lesson.

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Rounding decimals to the nearest whole numbers (whiteboard long)

Type: Playlist

School licence till: 2014-05-23

Price: 5.25 Credits

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