We measure time in seconds, minutes, hours, days, weeks, months, and years.

1

• We measure time in seconds, minutes, hours, days,
  weeks, months, and years.
• Although we can measure time exactly, we dont
  feel lengths of time exactly. For example, when
  we are happy or having fun, time seems to pass
  quickly. When we are happy or having fun, time
  seems to pass quickly. When we are unhappy or
  bored, time seems to pass very slowly.

Gr3-U4-L1
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• People use calendars, planners, and schedules as
  tools to organize their time. These tools help
  them plan how to use their time wisely.
• A time line is a special kind of number line.
  The dates get closer to the present time as we
  move to the right on the time line.

Gr3-U4-L2
3

• The 12 hours from midnight when the new day
  begins to noon are called A.M. A.M. means ante
  meridian or before noon. The meridian is
  noon.
• The 12 hours from noon through the afternoon to
  the next midnight are called P.M. P.M. means
  post meridian or after noon.

Gr3-U4-L3
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• We write times just like a digital clock shows
  them with the hour digits, a colon, and the
  minutes digits. For example, 1 oclock is
  written as 100.
• There are 24 hours in a day. They are divided
  into A.M. and P.M.

Gr3-U4-L3
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• We measure time in seconds, minutes, hours, days
  weeks, months, and year.
• 60 seconds 1 minute
• 60 minutes 1 hour
• 30 minutes 1/2 hour
• 15 minutes 1/4 hour
• 24 hours 1 day

Gr3-U4-L4
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• Elapsed time is the time that passes between one
  time and another time. For example, the amount
  of time that passes from the time you get on the
  bus at 315 P.M. until you get home at 337 P.M.
  is 22 minutes of elapsed time.

Gr3-U4-L5
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• 7 days 1 week
• 4 or 4 weeks 1 month
• 12 months 1 year
• 52 weeks 1 year
• 28, 30, or 31 days 1 month
• 365 days 1 year and 366 days leap year

Gr3-U4-L6
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• Elapsed time is the time that passes between one
  time and another time. For example, the amount
  out time that passes from the time you begin a
  trip on the 4th until you return home on the 10th
  is a week if you include both the day you left
  and the day you returned.

Gr3-U4-L6
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• It is important to recognize the United States
  bills and coins and to know what each is worth.

Gr3-U4-L7
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• There are at least two different combinations of
  coins that equal any amount over 4 cents, and
  there are often many more combinations.
• The easiest way to find out how much a group of
  bills and coins equals is to take the largest
  amount and add the next largest, then the next
  largest, and so on until you find the total.

Gr3-U4-L8
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• There are at least two different combinations of
  coins that equal any amount over 4 cents, and
  there are often many more combinations.
• The easiest way to find out how much a group of
  bills and coins equals is to take the largest
  amount and add the next largest, then the next
  largest, and so on until you find the total.

Gr3-U4-L9
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• The easiest way to make changes is to count up
  from the amount an item costs to the amount you
  paid. For example, a Frisbee cost 2.65 and you
  paid 5.00. Count up from 2.65 to 5 to make
  change. 2.65 a dime 2.75 a quarter
  3.00 2 1 bills 5.00, so the correct change
  is 2.35.

Gr3-U4-L9
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• There are at least two different combinations of
  coins that equal any amount over 4 cents, and
  there are often many more combinations.
• The easiest way to find out how much a group of
  bills and coins equals is to take the largest
  amount and add the next largest, then the next
  largest, and so on until you find the total.

Gr3-U4-L10
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• The easiest way to make change is to count up
  from an item costs to the amount you paid.

Gr3-U4-L10