Transcript 3-1
Student Learning Goal Chart Handout Math Learning Goal Students will understand decimals. Students will understand decimals by being able to do the following: • Learn to write, compare, and order decimals using place value and number lines (3-1) Representing, Comparing, 3-1 and Ordering Decimals Today’s Learning Goal Assignment Learn to write, compare, and order decimals using place value and number lines. Course 1 Representing, Comparing, 3-1 and Insert Lesson Title Here Ordering Decimals Lesson Quiz: Part 1 Write each in standard form, expanded form and words. 1. 8.0342 8 + 0.03 + 0.004 + 0.0002; eight and three hundred forty-two ten thousandths 2. 18 + 0.3 + 0.006 18.306; eighteen and three hundred six thousandths 3. eight and twelve hundredths 8.12; 8 + 0.1 + 0.02 Course 1 Representing, Comparing, 3-1 and Insert Lesson Title Here Ordering Decimals Lesson Quiz: Part 2 4. It takes Pluto 246.7 years to orbit the Sun, and it takes Neptune 164.8 years. Which planet takes longer to orbit the Sun? Pluto 5. Order the decimals from least to greatest: 16.35, 16.3, 16.5. 16.3, 16.35, 16.5 Course 1 Are you ready for the FAST Track? If YES, prepare for Ch. 3 Section 2! If NO, continue with the Ch. 3 Section 1 lesson! Representing, Comparing, 3-1 and Ordering Decimals th 6 Grade Math HW Page ?? #?-?? Course 1 Representing, Comparing, 3-1 and Ordering Decimals Warm Up Problem of the Day Lesson Presentation Course 1 Representing, Comparing, 3-1 and Ordering Decimals Warm Up Order the numbers from least to greatest. 1. 242, 156, 224, 165 156, 165, 224, 242 2. 941, 148, 914, 814, 721 148, 721, 814, 914, 941 3. 345, 376, 354, 397 345, 354, 376, 397 Course 1 Representing, Comparing, 3-1 and Ordering Decimals Problem of the Day Lupe is taller than Reba and shorter than Miguel. Tory is shorter than Lupe but taller than Reba. List the four brothers and sisters in order from tallest to shortest. Miguel, Lupe, Tory, Reba Course 1 Representing, Comparing, 3-1 and Ordering Decimals Today’s Learning Goal Assignment Learn to write, compare, and order decimals using place value and number lines. Course 1 Representing, Comparing, 3-1 and Ordering Decimals Today’s Learning Goal Assignment Learn to write, compare, and order decimals using place value and number lines. Course 1 Representing, Comparing, 3-1 and Ordering Decimals Additional Example 1A & B: Reading and Writing Decimals Write each decimal in standard form, expanded form, and words. A. 1.07 Expanded form: 1 + 0.07 Word form: one and seven hundredths B. 0.03 + 0.006 + 0.0009 Standard form:0.0369 Word form: three hundred sixty-nine ten-thousandths Course 1 Representing, Comparing, 3-1 and Ordering Decimals Additional Example C: Reading and Writing Decimals Write the decimal in standard form and expanded form. C. fourteen and eight hundredths Standard form: 14.08 Expanded form: 10 + 4 + 0.08 Course 1 Representing, Comparing, 3-1 and Ordering Decimals Try This: Example 1A & 1B Write each decimal in standard form, expanded form, and words. A. 1.12 Expanded form: 1 + 0.12 Word form: one and twelve hundredths B. 0.6 + 0.008 + 0.0007 Standard form: 0.6087 Word form: six thousand eighty-seven tenthousandths Course 1 Representing, Comparing, 3-1 and Ordering Decimals Try This: Example 1C Write each decimal in standard form and expanded form. C. eleven and two hundredths Standard form: 11.02 Expanded form: 10 + 1 + 0.02 Course 1 Representing, Comparing, 3-1 and Ordering Decimals Additional Example 2: Earth Science Application The star Wolf 359 has an apparent magnitude of 13.5. Suppose another star has an apparent magnitude of 13.05. Which star has the smaller magnitude? 13.50 Line up the decimal points. Start from the left and compare the digits. 13.05 Look for the first place where the digits are different. 0 is less than 5. 13.05 < 13.50 The star that has an apparent magnitude of 13.05 has the smaller magnitude. Course 1 Representing, Comparing, 3-1 and Ordering Decimals Try This: Example 2 Tina reported on a star for her science project that has a magnitude of 11.3. Maven reported on another star that has a magnitude of 11.03. Which star has the smaller magnitude? 11.30 Line up the decimal points. Start from the left and compare the digits. 11.03 Look for the first place where the digits are different. 0 is less than 3. 11.03 < 11.30 The star that has a magnitude of 11.03 has the smaller magnitude. Course 1 Representing, Comparing, 3-1 and Ordering Decimals Additional Example 3: Comparing and Ordering Decimals Order the decimals from least to greatest. 16.67, 16.6, 16.07 16.67 Compare two of the numbers at a time. 16.60 16.60 < 16.67 Write 16.6 as “16.60.” 16.67 16.07 16.07 < 16.67 16.60 16.07 16.07 < 16.60 Course 1 Start at the left and compare the digits. Look for the first place where the digits are different. Representing, Comparing, 3-1 and Ordering Decimals Additional Example 3 Continued Graph the numbers on a number line. 16.07 16 16.1 16.2 16.3 16.6 16.67 16.4 16.5 16.6 16.7 16.8 16.9 17 The numbers are ordered when you read the number line from left to right. The numbers in order from least to greatest are 16.07, 16.6, and 16.67. Course 1 Representing, Comparing, 3-1 and Ordering Decimals Try This: Example 3 Order the decimals from least to greatest. 12.42, 12.4, 12.02 12.42 Compare two of the numbers at a time. 12.40 12.40 < 12.42 Write 12.4 as “12.40.” 12.42 12.02 12.02 < 12.42 12.40 12.02 12.02 < 12.40 Course 1 Start at the left and compare the digits. Look for the first place where the digits are different. Representing, Comparing, 3-1 and Ordering Decimals Try This: Example 3 Continued Graph the numbers on a number line. 12.02 12 12.1 12.2 12.3 12.42 12.4 12.4 12.5 12.6 12.7 12.8 12.9 13 The numbers are ordered when you read the number line from left to right. The numbers in order from least to greatest are 12.02, 12.4, and 12.42. Course 1 Representing, Comparing, 3-1 and Insert Lesson Title Here Ordering Decimals Lesson Quiz: Part 1 Write each in standard form, expanded form and words. 1. 8.0342 8 + 0.03 + 0.004 + 0.0002; eight and three hundred forty-two ten thousandths 2. 18 + 0.3 + 0.006 18.306; eighteen and three hundred six thousandths 3. eight and twelve hundredths 8.12; 8 + 0.1 + 0.02 Course 1 Representing, Comparing, 3-1 and Insert Lesson Title Here Ordering Decimals Lesson Quiz: Part 2 4. It takes Pluto 246.7 years to orbit the Sun, and it takes Neptune 164.8 years. Which planet takes longer to orbit the Sun? Pluto 5. Order the decimals from least to greatest: 16.35, 16.3, 16.5. 16.3, 16.35, 16.5 Course 1