CONFIDENTIAL1 Good Afternoon! Today we will be learning about Calendar and Years Let’s warm up : Complete the conversion tables: Hours478 Minutes 1) Calculate how much time has elapsed between: 2) 5:05 A.M. and 10:10 A.M.? 3) 2:20 P.M. and 5:40 P.M.? 4) 9:40 P.M. and 2:25 A.M.?

CONFIDENTIAL2 Let’s review the previous topic Elapsed 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. A day has 24 hours. These 24 hours is divided into two time zones. These are “A.M.” and “P.M.”. The standard unit of time is second.

CONFIDENTIAL3 Review Time Facts 60 seconds1 minute 15 minutes1 quarter-hour 60 minutes1 hour 90 minutes1 ½ hours 180 minutes3 hours The simple conversion table for time is: To convert from minutes to seconds multiply by 60 and to convert from seconds to minutes divide by 60. Similarly, To convert from hours to minute multiply by 60 and to convert from minute to hours divide by 60.

CONFIDENTIAL4 Review 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 Tell Time

CONFIDENTIAL5 Review 45 minutes (min) = ¾ hour (3/4 h) or 3 quarter hours 60 minutes (min) = 1 hour (1 h) or 4 quarter hours Tell Time

CONFIDENTIAL6 Review Elapsed Time: It is the amount of time that passes from the start to the end of an activity. 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. Step 2: Then count the number of minutes. From 11:20 to 11:35 is 15 minutes. So, 3 hours 15 minutes has passed.

CONFIDENTIAL7 Review Count past midnight What time is 4 hours 20 minutes after p.m.? Start at p.m. Count on 4 hours > > > > 3.00 Add on 20 minutes: 3.20 a.m. (Note: After midnight write A.M.) So, 4 hours 20 minutes after p.m. is 3.20 a.m.

CONFIDENTIAL8 Let’s start the topic Calendar and Years May 2000 SMTWTFS Mother’s day Calendar displays the layout of the dates of a month and their corresponding day of the week of a particular year.

CONFIDENTIAL9 Ordinal Number: A number used to tell order or position. They are used to say a date in a calendar. EXAMPLE: 1st, 7th, and 19th, or first, seventh, and nineteenth are ordinal numbers. June 26 can also be called the 26th of June, or the twenty-sixth. The layout of the calendar helps to know dates and their corresponding day in a particular month.

CONFIDENTIAL10 A day has 24 hours. There are 7 days in a week. They are: NUMBERDAYS 1Sunday 2Monday 3Tuesday 4Wednesday 5Thursday 6Friday 7Saturday There is generally 4 weeks and few days in a month.

CONFIDENTIAL11 A year has 12 months. MONTHNO. OF DAYS January31 February28 March31 April30 May31 June30 July31 August31 September30 October31 November30 December31

CONFIDENTIAL12 A year is 365 days. But in the Leap year the number of days become 366 as the month February has 29 days. The Leap year occur once every four years. The years 2000, 2004, 2008, 2012,………… are Leap years. Counting with Years 1 decade10 years 1 century100 years 1 century10 decades 1 millennium1,000 years 1 millennium10 century

CONFIDENTIAL13 Suppose today is May 8. How many days is it until Mother’s Day? You can use a calendar to find the elapsed time. May 2000 SMTWTFS Mother’ s day  Count on from May 8 to May 14. It is six days from May 8 to May 14.

CONFIDENTIAL14 You can use a calendar to find the elapsed time. May 2000 SMTWTFS Suppose today is May 15 How many days is it until June 17? Count on from May 15 to May 31. i.e., 17 days in May. June 2000 SMTWTFS Step1:

CONFIDENTIAL15 June 2000 SMTWTFS i.e. 17 days in May + 16 days in June = 33 days Add the number of days in May with number of days before June 17. Step2: Therefore, It is 33 days from May 15 to June 17.

CONFIDENTIAL16 June 2000 SMTWTFS You can use a calendar to find the Date. Suppose today is June 3. What is the date and day of the week after 16 days?  Use June 3 as the first day and count on 16 days. 16 days from June 3 is June 19 and the day is Monday.

CONFIDENTIAL17 You can use a calendar to find the Date. May 2000 SMTWTFS June 2000 SMTWTFS Suppose today is May 23. What is the date after 21 days?  Use May 23 as the first day and count on 21 days. The 21 days after May 23 is June 13.

CONFIDENTIAL18 Assessment 1) What is the date of third Wednesday in May? May 2000 SMTWTFS Mother’ s day ) On what day of the week is Mother’s day? 3) How long is it from Mother’s day to the following Sunday?

CONFIDENTIAL19 Find the elapsed time: June 2000 SMTWTFS July 2000 SMTWTFS ) Start day: June 9 End day: June 17 Elapsed time: ……… 5) Start day: June 19 End day: July 5 Elapsed time: ……… 6) Start day: July 12 End day: July 29 Elapsed time: ………

CONFIDENTIAL20 Find the Date: June 2000 SMTWTFS July 2000 SMTWTFS ) Start day: June 9 Elapsed time: 7 days End day: ……… 8) Start day: June 21 Elapsed time: 16 days End day: ……… 9) Start day: July 3 Elapsed time: 21 days End day: ) Start day: July 5 Elapsed time: 11 days End day:

CONFIDENTIAL21 Very Good! Let's Review Calendar displays the layout of the dates of a month and their corresponding day of the week of a particular year. Ordinal Number: A number used to tell order or position. They are used to say a date in a calendar. EXAMPLE: 1st, 7th, and 19th, or first, seventh, and nineteenth are ordinal numbers. June 26 can also be called the 26th of June, or the twenty-sixth. The layout of the dates helps to know and their corresponding day in a particular month.

CONFIDENTIAL22 Review A day has 24 hours. There are 7 days in a week. DAYS Sunday Monday Tuesday Wednesday Thursday Friday Saturday A year has 12 months. MONTHNO. OF DAYS January31 February28 March31 April30 May31 June30 July31 August31 September30 October31 November30 December31

CONFIDENTIAL23 Review A year is 365 days. But in the Leap year the number of days become 366 as the month February has 29 days. The Leap year occur once every four years. The years 2000, 2004, 2008, 2012,………… are Leap years. Counting with Years 1 decade10 years 1 century100 years 1 century10 decade 1 millennium1,000 years 1 millennium10 century

CONFIDENTIAL24 Review You can use a calendar to find the elapsed time. May 2000 SMTWTFS Suppose today is May 15 How many days is it until June 17? Count on from May 15 to May 31.i.e., 17 days in May. June 2000 SMTWTFS Step1:

CONFIDENTIAL25 Review June 2000 SMTWTFS i.e. 17 days in May + 16 days in June = 33 days Add the number of days in May with number of days before June 17. Step2: Therefore, It is 33 days from May 15 to June 17.

CONFIDENTIAL26 You can use a calendar to find the Date. May 2000 SMTWTFS June 2000 SMTWTFS Suppose today is May 23. What is the date after 21 days?  Use May 23 as the first day and count on 21 days. The 21 days after May 23 is June 13. Review

CONFIDENTIAL27 You have done a nice job. See you in the next session.