Presentation on theme: "1 Place Value with decimals through millionths. 2 Monday, Aug. 16 th ~ Groundworks #1 (do together as class) Groundworks #2 (let students do on own) Show."— Presentation transcript:
1 Place Value with decimals through millionths
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
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
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.
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….
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.
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.
8 Students ~ Use your place value chart (in your spiral notebook) to help you with today’s math problems.
9 How to read and write decimals: Write the following number in word form: 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
10 Practice: try to write the following in word form. 1) )
11 Check your answers Practice: try to write the following in word form. 1) seven and four thousand five ten thousandths 2) twenty-eight thousand sixty-seven hundred thousandths
thhto. t h th 100 th m How would you write this # in word form?
thhto. t h th 100 th m Seven hundred twenty thousand, three hundred eighty-five millionths
14. thhto. t h 10 th 100 th m What place is the 4 in ?
thhto. t h th 100 th m What place is the 4 in ?
16 What number is in the hundred thousandths place?
17 What number is in the hundred thousandths place?
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.
the nine is in the millionths place Four and twenty-nine millionths
thhto. t h th th 100 th m
21 Now, try some more practice Note to teacher: Change the level to 6 and change the answers to just decimals. Have the students practice these questions out loud.