1. Topic-
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| Understanding Decimal Place Values |
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2. Content-
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| decimal, decimal point, tenths place, hundredths place |
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3. Goals: Aims/Outcomes-
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| The lesson will help students understand the role of the decimal
point and the relationship between tenths, hundredths, and thousandths. |
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4. Objectives-
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1.Students will explore decimal values.
2.Students will read and write decimals using tenths, hundredths,
and thousandths.
3.Compare decimals using greater than and less than notations.
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5. Materials and Aids-
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| practice questions, pencil, paper. |
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6. Procedures/Methods-
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A. Introduction-
1.introduce key vocabulary words
2.students will fold a paper and write the definitions of the words
as a dictionary.
*decimal-often refers to a base-10 positional notation
*tenths place value-when the decimal point is followed by a single
number
*hundredths place value-when the decimal point is followed by two
numbers
*thousandths place-when the decimal number is followed by three numbers
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B. Development-
Using the board, illustrate the difference between tenth, hundredths
and thousandths place values. Show how numbers may have the same value.
(0.1, 0.10, 0.100). Allow students to read the place and values and
write them, in decimal form and as a fraction.
Ask students to name instances when it is important to calculate and
record numbers less than 1 (Possible answers: time, money, scientific
measurements). Use instances from life to show the class how each
of the following decimals is written and read.
* Marcel's slice of pizza cost $1.35.
* In the 1988 Summer Olympics, Carl Lewis won the gold medal for running
the 100-Meter Dash in 9.92 seconds.
* An inch is equal to 2.54 centimeters.
* The average body temperature is 98.6° Fahrenheit.
* When comparing decimals, begin on the left and compare the digits
in each place. Example:
* Compare 0.11 and 0.12.
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C. Practice-
As a class, students will write 25. Next, students will write 2.5
(two and five tenths). Next, students will write 0.25 (25 hundredths).
Complete worksheet with a partner. |
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D. Independent Practice-
| Check another group's worksheet. |
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E. Accommodations (Differentiated Instruction)-
| Additional questions may be asked during the guided practice until
students understand. |
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F. Checking for understanding-
Students will answer which numbers is greater, less or equal:
0.1 < 0.2
0.31 > 0.3
1.46000 = 1.46 |
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G. Closure-
| Students will review the assessment as a class. |
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7. Evaluation-
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| Students will have a pop quiz on place values. |
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