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1 Place Value with decimals through millionths

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2 Monday, Aug. 16 th ~ Groundworks #1 (do together as class) Groundworks #2 (let students do on own) Show ppt slides 3 and 4 Cut out place value chart and glue (w/ glue stick) in spiral & on the back of the page, glue diff ways to write #s chart. Then proceed with ppt 5 and 6

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3 Starting with the ones place, let’s name the places together, in order, from ones to millions: ones tens hundreds thousands ten thousands hundred thousands millions

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4 ones tens hundreds thousands ten thousands hundred thousands millions Starting at the decimal point, the places are named in the same order except: there is not a “ones” place all names end in “ths” (.) decimal tenths hundredths thousandths ten thousandths hundred thousandths millionths Now add place value chart to spiral notebook, and add diff ways to read/write #s on another page.

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5 Practice (whole group…on screen) 1.http://www.thatquiz.org/tq/practice.html?pl acevalue (orally—with volunteers)http://www.thatquiz.org/tq/practice.html?pl acevalue 2. Write each number in standard form. (on a sheet of paper) a) 83 thousand 903 b) (9 x 10,000) + (8 x 1,000) + (3 x 100) + (4 x 10) c) four hundred eighty-nine thousand, three hundred forty-one d) (5 x 100,000) + (3 x 1,000) + (7 x 10) e) 48 thousand 16 f) two hundred eight g) sixty-five billion, two million, fourteen thousand, three Answers to a-g are on the next slide….

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6 Practice Answers 2. Write each number in standard form. a) 83,903 b) 98,340 c) 489,341 d) 503,070 e) 48,016 f) 208 g) 65,002,014,003 STOP here on Mon.

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7 Wednesday, Aug. 18 th ~ Groundworks #4 (w/ a partner) Compare answers w/a partner - WS “Athletes on Parade” Teacher will “spot check” #s 7, 8, 10, 15, 21, and 22. Continue on to the end of this ppt Then, students will do WS- Read/Write Decimals and check it in class.

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8 Students ~ Use your place value chart (in your spiral notebook) to help you with today’s math problems.

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9 How to read and write decimals: Write the following number in word form: 40. 318 Step 1: Write the word name for the #s to the left of or before the decimal point. forty Step 2 : Write and & the word name for the #s to the right of the decimal point. forty and three hundred eighteen Step 3: Write the place value name of the final digit after the decimal point. forty and three hundred eighteen thousandths

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10 Practice: try to write the following in word form. 1) 7.4005 2) 0.28067

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11 Check your answers Practice: try to write the following in word form. 1) 7.4005 seven and four thousand five ten thousandths 2)0.28067 twenty-eight thousand sixty-seven hundred thousandths

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12 0. 720 thhto. t h 38 5 10 th 100 th m How would you write this # in word form?

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13 0. 720 thhto. t h 38 5 10 th 100 th m Seven hundred twenty thousand, three hundred eighty-five millionths

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14. thhto. t h 10 th 100 th m What place is the 4 in ? 0. 00548

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15 0. 00 5 thhto. t h 4 8 10 th 100 th m What place is the 4 in ? 0. 00548

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16 What number is in the hundred thousandths place? 8.097136

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17 What number is in the hundred thousandths place? 8.097136

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18 Try to write the following number in standard form: Four and twenty-nine millionths ** Remember: when writing a decimal in standard form, start by placing the decimals in the correct place and then work backwards. Use your chart in your spiral notebook to help you write this number.

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19 4.000029 the nine is in the millionths place Four and twenty-nine millionths

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20 4. 000 thhto. t h 4.000029 th 029 10 th 100 th m

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21 Now, try some more practice http://www.thatquiz.org/tq/practice.html?placevalue Note to teacher: Change the level to 6 and change the answers to just decimals. Have the students practice these questions out loud.

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