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CFU

Decimal Number. 2.75. 2 plus 0.75. means. Learning Objective Name _________________________ Today, we will identify 1 decimal numbers on a number line. 1 find. CFU What are we going to do today? What does identify mean? Identify means __________.

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CFU

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  1. Decimal Number 2.75 2plus0.75 means Learning ObjectiveName _________________________ Today, we will identify1 decimal numbers on a number line. 1 find CFU What are we going to do today? What does identify mean? Identify means __________. Activate (or provide) Prior Knowledge Money amounts are written using decimal numbers. A decimal number is a number that shows a whole number pluspart of a whole number separated by a decimal point. Identify the whole number part of the numbers below. 2. $7.38 1. $6.25 Identify the part of the whole in the numbers below. 2. $9.72 1. $8.36 CFU Students, you already know how to read decimal numbers. Today, we will identify decimal numbers on the number line.

  2. Concept Development Decimal Number 2.75 2plus0.75 means • A decimal number is a number that shows a whole number pluspart of a whole number separated by a decimal point. • Decimal numbers can be represented2 on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. 2 shown Number line with decimal numbers shown Tenths: A C 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 0 1 2 Hundredths: 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 1.1 1.2 0.48 0.49 0.5 0.6 CFU Which of the following is equal to 7.35? A 7 + 35 B 7 + 0.35 C 35 + 0.7 Which of the following is a possible value for the letter B on the number line? How do you know? A 4.25 B 2.25 C 3.3 B 3 4 2

  3. Skill Development/Guided Practice • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A A A C D D C C B B D C D C B B C D B D B 1.3 0.3 0.3 0.3 0.4 0.4 1.4 0.4 0.6 0.6 0.6 1.6 1.7 0.7 0.7 0.7 1.8 0.8 0.8 0.8 0.9 0.9 0.9 1.9 1.1 1.1 2.1 1.1 2.2 1.2 1.2 1.2 1.3 1.3 2.3 1.3 1.4 1.4 2.4 1.4 1.5 4.5 2.5 1.5 1.5 1.5 2.6 1.6 1.6 1.6 1.8 2.8 1.8 1.8 1.9 1.9 1.9 2.9 0.5 1.5 0.5 3.5 0.5 0.5 0.1 0.1 0.1 1.1 0.2 0.2 1.2 0.2 1.7 2.7 1.7 1.7 2 2 2 2 5 3 0 0 1 3 0 0 2 4 1 1 1 1 1.3 3.4 CFU (#2) How did I/you identify which two whole numbers the decimal number was between? (#2a) How did I/you locate the point between the whole numbers? (#3) How did I/you label the correct decimal?

  4. Skill Development/Guided Practice (continued) • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A C C B B D D B B D C D C 2.13 1.03 2.14 1.04 1.06 2.16 2.17 1.07 2.18 1.08 1.09 2.19 1.11 2.21 1.12 2.22 2.23 1.13 2.24 1.14 2.35 4.75 2.25 1.15 1.16 2.26 2.28 1.18 1.19 2.29 1.05 4.65 2.25 2.15 1.01 2.11 2.12 1.02 1.17 2.27 4.8 1.2 2.4 1.2 1.0 2.1 2.2 4.6 2.3 1.1 4.7 2.2 2.33 4.61 CFU (#2) How did I/you identify which two whole numbers the decimal number was between? (#2a) How did I/you locate the point between the whole numbers? (#3) How did I/you label the correct decimal?

  5. 1.78 + 2.21 3.99 Relevance • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. 1. Identifying decimal numbers on a number line will help you compare, add, subtract, multiply, and divide decimal numbers. 2. Identifying decimal numbers on a number line will help you do well on tests. CFU Does anyone else have another reason why it is relevant to identify decimal numbers on a number line? (pair-share) Why is it relevant to identify decimal numbers on a number line? You may give one of my reasons or one of your own. Which reason is more relevant to you? Why?

  6. Which of the following numbers are between 5.50 and 6? Explain why the other choices are not between 5.50 and 6. ___________________________________________________ ___________________________________________________ A 5.25 B 5.75 C 5.80 D 6.10 Decimal Number 2.75 2plus0.75 means • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Skill Closure Identify decimal numbers on a number line. 2. Which pointrepresents 2.15? 1. Which point represents 0.4? A A B C C D B D Constructed Response Closure 2.13 0.3 2.14 0.4 2.16 0.6 2.17 0.7 2.18 0.8 2.19 0.9 2.21 1.1 2.22 1.2 2.23 1.3 2.24 1.4 2.25 1.5 2.26 1.6 2.28 1.8 2.29 1.9 2.15 0.5 2.11 0.1 2.12 0.2 2.27 1.7 1.2 2 2.1 0 2.2 1 Summary Closure What did you learn today about identifying decimal numbers on the number line? Day 1 ______________________________________________________________________ Day 2 ______________________________________________________________________

  7. Name __________________________ Independent Practice • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A A A B D C C B C D D C B B D D C C D B B 2.3 0.3 0.3 0.3 0.4 2.4 0.4 0.4 0.6 0.6 2.6 0.6 2.7 0.7 0.7 0.7 0.8 0.8 2.8 0.8 0.9 0.9 2.9 0.9 3.1 1.1 1.1 1.1 3.2 1.2 1.2 1.2 1.3 3.3 1.3 1.3 1.4 1.4 1.4 3.4 1.5 1.5 1.5 1.5 3.5 4.5 1.6 1.6 1.6 3.6 1.8 1.8 1.8 3.8 1.9 3.9 1.9 1.9 0.5 3.5 0.5 2.5 0.5 0.5 0.1 0.1 2.1 0.1 0.2 2.2 0.2 0.2 1.7 1.7 1.7 3.7 4 2 2 2 2 5 2 0 0 0 3 0 1 1 1 4 1 3 1.9 4.1

  8. Independent Practice (continued) • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A B D C D B A C B D C C D B 2.13 1.03 2.14 1.04 1.06 2.16 2.17 1.07 2.18 1.08 2.19 1.09 2.21 1.11 2.22 1.12 2.23 1.13 2.24 1.14 1.15 2.35 6.05 2.25 2.26 1.16 2.28 1.18 2.29 1.19 2.25 5.95 1.05 2.15 1.01 2.11 2.12 1.02 1.17 2.27 2.4 1.2 1.2 6.1 2.2 2.1 5.9 1.0 2.3 2.2 1.1 6 2.37 5.99

  9. Name __________________________ Periodic Review 1 • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A A A C B B C C D B B D C D D B C C D D B 2.64 1.03 1.04 1.06 1.07 1.08 1.09 1.11 1.12 1.13 1.14 1.15 1.16 1.18 1.19 1.05 1.01 1.02 1.17 1.3 2.7 6.2 3.2 1.2 2 1.1 2.5 1.0 0 6 3 1.2 1.1 3.1 2.6 6.1 1 1.2 6.15 1.25 3.12

  10. Name __________________________ Periodic Review 2 • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A A A B D C D C C D D B B D C B C C B B D 2.25 3.73 4.8 3.9 1.1 5.1 2.3 5 4.6 0.9 4.9 3.7 2.1 4.8 4.9 3.8 2.2 1 5 4.7 4.75 5.03 1.01 4.98

  11. Name __________________________ Periodic Review 3 • Decimal numbers can be represented on a number line. • To represent tenths, divide the segment between each whole number into ten equal parts. • To represent hundredths, divide the segment between each tenth into ten equal parts. Identify decimal numbers on a number line. A A A A A A B D C D B C D D C B D C B B D C C B 2.78 3.12 4.9 2.9 6.1 6.6 3.2 6.4 4.7 6.4 5.9 2.7 6.2 3 6.3 2.8 3.1 6.5 6 4.8 4.78 6.51 6.04 6.39

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