## Presentation on theme: "Copyright © Ed2Net Learning, Inc.1 Time to the Quarter and Half Hour Grade 3."— Presentation transcript:

Copyright © Ed2Net Learning, Inc.2 Hello! How are you Today? We are going to begin another Lesson on Time.

Copyright © Ed2Net Learning, Inc.3 Hour Hour is a unit of time. 1 hour = 60 minutes 1 day = 24 hours The Clock shows 9o’clock.

Copyright © Ed2Net Learning, Inc.4 Half-hour Half of one hour is called half-hour. 1 half-hour = 30 minutes The Clock shows 9:30

Copyright © Ed2Net Learning, Inc.5 Example If the time shown in the clock is 2:30. It is o Half past 2 o Two- thirty o 30 minutes after 2 o 30 minutes before 3

Copyright © Ed2Net Learning, Inc.6 Quarter-hour Half of one half hour is called quarter hour. 1 quarter hour = 15 minutes The Clock shows 1:15

Copyright © Ed2Net Learning, Inc.7 Example The time shown in the Clock is o Quarter to seven o Six-forty five o 15 minutes before 7 o 45 minutes after 6

Copyright © Ed2Net Learning, Inc.8 To represent 3:15 and 3:45 3:15 can be written as o Quarter after 3 o Three-fifteen 3:45 can be written as o Quarter to 4 o Three-forty five

Copyright © Ed2Net Learning, Inc.9 A.M A.M is used for the hours 12 midnight (12 A.M.) until 12 noon. Example: 11 A.M 9 A.M.

Copyright © Ed2Net Learning, Inc.10 P.M. P.M. is used for the hours 12 noon (12 P.M.) to 12 midnight. Example: 11 P.M. 8 P.M.

Copyright © Ed2Net Learning, Inc.11 Choose the most reasonable time for a) Getting up b) Eating dinner c) Eating breakfast Answers- a) A.M. b) P.M. c) A.M.

Copyright © Ed2Net Learning, Inc.12 Standard and Military time The system we use to tell time is Standard Time. The System that soldiers use to tell time is called Military Time.

Copyright © Ed2Net Learning, Inc.13 Military Time o In Military Time, no A.M., P.M. is required. o The first 12 hours(1 A.M. to 12 noon) are the hours 01-12. o The second twelve hours(1:00 P.M. to 12 midnight ) are the hours 13 – 24.

Copyright © Ed2Net Learning, Inc.14 Write each standard time in Military Time. a) 3:00 A.M. b) 3:00 P.M. Answer- a) 0300 hours b) 1500 hours

Copyright © Ed2Net Learning, Inc.15 Write each time using numbers a) Quarter after five b) Quarter to six c) Seven o’clock Answers- a) 5:15 b) 5:45 c) 7:00

Copyright © Ed2Net Learning, Inc.16 Describe the time in different ways. 8:30 Answer- a) Eight- thirty b) Half past 8 c) 30 minutes after 8

Copyright © Ed2Net Learning, Inc.17 Describe the time in 2 different ways. 1:45 Answer- Quarter to 2 45 minutes after 1

Copyright © Ed2Net Learning, Inc.21 2. Where does the minute hand point when it is a quarter to an hour? Answer- 9

Copyright © Ed2Net Learning, Inc.22 3. A clock shows 6:15. Write the time in different ways. Answer- Quarter after 6 Six- fifteen 15 minutes after 6 45 minutes before 7

Copyright © Ed2Net Learning, Inc.23 4. Write each standard time in military time. a) 6:00 P.M. b) 1:00 A.M. Answer- a) 1800 hours b) 0100 hours

Copyright © Ed2Net Learning, Inc.24 5. Write each military time in Standard Time. a) 2105 b) 1545 Answer- a) 9:05 P.M. b) 3:45 P.M.

Copyright © Ed2Net Learning, Inc.25 6. What time is quarter to 5? a) 4:15 b) Four-forty c) Four-forty three d) 4:45 Answer- d

Copyright © Ed2Net Learning, Inc.26 7. Write 9:45 in four different ways. Answer- Quarter to ten Nine- forty five 45 minutes after 9 15 minutes before 10

Copyright © Ed2Net Learning, Inc.27 8. The trains arrive at 1:15, 1:30, 1:45. If the same pattern continues, what time does the next train arrives? Answer- 2 o’clock

Copyright © Ed2Net Learning, Inc.28 9. Describe the time in different ways. 3:30 Answer- Three-thirty Half past 3 30 minutes after 3 30 minutes before 4

Copyright © Ed2Net Learning, Inc.29 10. Where does the hour hand and minute hand points when the clock shows 7:45? Answer- Hour hand – between 7 and 8 Minute hand - 9

Copyright © Ed2Net Learning, Inc.30 Recap o Hour o Half-hour o Quarter-hour o A.M. o P.M. o Standard and military time o Solved Examples o Practice Problems