Today we will review “Money, Time, Temperature”
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CONFIDENTIAL 1
Today we will review “Money, Time, Temperature”
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CONFIDENTIAL 2
Let’s Warm up
1) 1feet = 12 in
2) 1 kg = 1,000 g
3) 100 cm = 1 m
4) 1 quart = 2 pints
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CONFIDENTIAL 3
Count Money Penny
1 penny, 1 cent, or 1¢ Count by one to count pennies. 1 cent, 2 cents, 3 cents,
4 cents and so on. Nickel
1 nickel, 5 cents, or 5¢ Count by fives to count nickels. 5 cents, 10 cents, 15 cents, 20
cents and so on. 5 pennies = 1 nickel 1 cent + 1 cent + 1 cent + 1 cent + 1 cent = 5 cents or 1 nickel.
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CONFIDENTIAL 4
Count Money
Dime 1 dime, 10 cents, or 10¢ Count by tens to count dimes. 10 cents, 20 cents, 30 cents, 40
cents and so on. 10 pennies = 1 dime 1 cent + 1 cent + 1 cent + 1 cent + 1 cent + 1 cent + 1 cent + 1
cent + 1 cent + 1 cent = 10 cents or 1 dime. 2 nickels = 1 dime. 5 cents + 5 cents = 10 cents or one dime.
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CONFIDENTIAL 5
Count Money
Quarter 1 quarter, 25 cents, or 25¢ Count by 25 to count quarters. 25 cents, 50 cents, 75 cents, $1.00 and so on. 25 pennies = 1 quarter 5 nickels = 1 quarter 2 dimes and 1 nickel = 1 quarter
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CONFIDENTIAL 6
Count Money
Dollar Bill 1 Dollar 100 cents, or 100¢ Count by 100 to count dollars. $1.00, $2.00, $3.00 and so on. 4 quarters = 1 Dollar 20 nickels = 1 Dollar 10 dimes = 1 Dollar
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CONFIDENTIAL 7
Try This!
Write the amount of money shown
$1.56
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CONFIDENTIAL 8
Make Change
Count up to find the exact change Example: Price $7.67; Amount given $10.00
Start at $7.67. Count up to $10.00
$7.68 $7.69 $7.70 $7.75 $8.00 $9.00 $10.00 To check the change count the bills and coins from the greatest to least
value
$1.00 $2.00 $2.25 $2.30 $2.31 $2.32 $2.33 So you should receive $2.33 as change
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CONFIDENTIAL 9
Try This!
Find the amount of change. Price: $0.56 Amount given: $1.00 $0.44
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CONFIDENTIAL 10
Compare and Order Money Amounts You can use a place value chart to compare money amounts.
Start at left. Look for the first place where the digits are different.
Example: Compare $306.97 and $319.23
The amount $319.23 has more ten dollars than $306.97 So, $319.23 > $306.97
Hundred Dollars
Ten Dollars
One Dollar
Cents
3 0 6 97
3 1 9 23
Same different
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CONFIDENTIAL 11
Try This!
Use place value chart to compare the amounts. Write >, <, or =. Compare $542.75 and $547.25 <
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CONFIDENTIAL 12
Compare and Order Money Amounts You can also compare and order the same way you do for whole numbers
Step 1: Line up the decimal points. Compare the three amounts. Step 2: Compare the remaining two amounts. Step 3: Write the money amounts in order from least to greatest.
Example: Compare and order from least to greatest: $7.13, $6.95, $6.89 Step 1:
$7.13$6.95$6.89
7>6, so $7.13 is the greatest number. Step 2:
$6.95$6.89
8<9, so $6.89 is less than $6.95 Step 3:
$6.89$6.95$7.13
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CONFIDENTIAL 13
Try This!
Order from greatest to least: $0.98, $0.86, $0.99 $0.99, $0.98, $0.86
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CONFIDENTIAL 14
Round Money You round money the same way you do with whole numbers
Step 1: Find the digit in the dollars place. Step 2: Look at the place to the right of the dollars place. Step 3: If the digit is less than 5, round down. If the digit is 5 or greater,
round up. Example: Round $7.13, $6.89, $6.95
Step 1:$7.13$6.89$6.95
Step 2:$7.13$6.89$6.95
Step 3:$7.13 $7.00$6.89 $7.00$6.95 $7.00
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CONFIDENTIAL 15
Try This!
Round $674 to the nearest ten $670
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CONFIDENTIAL 16
Tell Time
A.M. A name for time between 12:00 midnight and 12:00 noon. On school days you might wake up at 7:00 A.M.
P.M. A name for time between 12:00 noon and 12:00 midnight. Many people eat dinner at 6:00 P.M.
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CONFIDENTIAL 17
Tell Time
9:15 A.M. Nine-fifteen in the morning, or Quarter after nine, or Fifteen minutes after nine
4:25 P.M. Four twenty-five in the
afternoon, or 25 minutes after 4
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CONFIDENTIAL 18
Tell Time
15 minutes (min) =¼ hour (1/4 h) or
1 quarter hour
30 minutes (min) =½ hour (1/2 h) or2 quarter hours
45 minutes (min) =¾ hour (3/4 h) or3 quarter hours
60 minutes (min) =1 hour (1 h) or4 quarter hours
Time Facts
60 seconds = 1 minute
90 minutes = 1 ½ hours
180 minutes = 3 hours
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CONFIDENTIAL 19
Try This!
1 and 1 half hours = 90 minutes
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CONFIDENTIAL 20
Elapsed Time
Elapsed Time: The amount of time that passes from the start to the end of an activity. Example: How much time has elapsed between 8:20 A.M. and
11:35 A.M.? Step 1: First count the number of hours
From 8:20 to 11:20 is 3 hours
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CONFIDENTIAL 21
Elapsed Time
Step 2: Then count the number of minutes
From 11:20 to 11:35 is 15 minutes
So, 3 hours 15 minutes has passed
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CONFIDENTIAL 22
Try This!
How much time has passed? Begin: 6:15 A.M. End: 10:00 A.M. 3 h 45 min
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CONFIDENTIAL 23
Calendar
Ordinal Number: A number used to tell order or position
They are used to say a date Such as 1st, 7th, and 19th, of
first, seventh, and nineteenth June 26 can also be called the
26th of June, or the twenty-sixth You can use a calendar to find
the elapsed time Suppose today is May 8. How
many days is it until Mother’s Day?
Count on from May 8 to May 14. It is six days from May 8 to May 14.
May 2000S M T W T F S
1 2 3 4 5 6
7 8 9 10 11 12 13
14Mother’s day
15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
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CONFIDENTIAL 24
Try This!
Gene’s family leaves for vacation on June 26! They go home 12 days later. What day does his family return?
The vacation will end on July 7.
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CONFIDENTIAL 25
Years
Counting with Years
A year has 12 months (January, February, March, April, May, June, July, August, September, October, November, December)A year is 365 days. A decade is 10 years.A century is 100 years.A millennium is 1,000 years.
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CONFIDENTIAL 26
Temperature, Changes and Negative Numbers Temperature: A measurement that tells how hot or cold
something is. When the temperature rises, I wear lighter clothing
Two scales for measuring temperature: Degrees Celsius: A unit for measuring temperature.
The temperature in the snow is 00 Celsius Degrees Fahrenheit: A unit for measuring temperature.
The temperature in the swimming pool is 780 Fahrenheit
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CONFIDENTIAL 27
Temperature, Changes and Negative NumbersCelsius Thermometer Fahrenheit Thermometer
100
80
60
40
20
10
0
-10
210
190
170
110
70
50
30
-20
100
80
60
40
20
10
0
-10
Water Freezes
Normal Body temperature
Water Boils1000C 2100F
370C 98.40F
00C 320F
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CONFIDENTIAL 28
Temperature, Changes and Negative Numbers Temperatures can be below 00F or 00C. These are negative temperatures. You read 20 degrees below zero as - 200F. What is the temperature change from 150F to -50F?
Step 1:Find the change in temperature from 150F to 00F . The change is 150.
Step 2: Find the change in temperature from 00F to -50F. The change is 50.
Step 3: Add the 2 changes. 150 + 50=200.
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CONFIDENTIAL 29
Try This!
The temperature is 640F during the daytime. It drops 120 degrees during the night. What is the temperature then?
520 F
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CONFIDENTIAL 30
Let us take a break!
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CONFIDENTIAL 31
Game
Click me
Let us see how fast you are on this one!
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CONFIDENTIAL 32
Assessment
1. Tell which coins and bills make the amount $0.49 answers may vary
2. Find the amount of change. Price: $0.79 Amount given:$1.00 $0.21
3. Order from least to greatest: $123.78; $96.21; $131.09 $96.21, $123.78, $131.09
4. Round $0.86 to the nearest ten cents. $0.805. Tell how much time: 240 minutes = __ hours 4
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CONFIDENTIAL 33
Assessment
6. How much time has passed? 4 h 31 min Begin: 10:25 A.M. End:2:56 P.M.
7. How much time has passed? July 31 Start date: July 9 Elapsed time: 22 days End date: ___
8. Choose the best estimate. 1. To make a snowman 300F or 300C 300F2. To swim in the ocean 270F or 270C 270C
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CONFIDENTIAL 34
Good Job!
You have learned a lot today!!!