Time Primary 4 Mathematics Time Chapter Learning Outcomes

Time Chapter Learning Outcomes Telling time in seconds Understanding and using the 24 -hour

Time In Seconds There are three hands on this clock. This is the hour

Time In Seconds I can recall that 1 hour = 60 minutes. Well, 1

Time In Seconds after 30 s 3. 00 p. m. after 30 s 3.

Time The 24 -hour Clock What is the time shown on the clock? Using

Time Example Fill in the blanks. 12 -hour clock 4. 30 a. m. 5.

Time Word Problems Arianne started reading the newspaper at 18 00. She finished reading

Time Word Problems Justin finished cooking his lunch at 13 45. He took 2

Time Example Andy took a flight from Melbourne to Singapore which lasted 9 h

Time Example Jermaine started watching a movie marathon at 19 30. He finished watching

Time Reference - Textbooks Learning Outcomes Telling time in seconds Understanding and using the

Slides: 14

Download presentation

Time Primary 4 Mathematics

Time Chapter Learning Outcomes Telling time in seconds Understanding and using the 24 -hour clock Solve word problems related to time 2

Time In Seconds There are three hands on this clock. This is the hour hand. This is the minute hand. This is the second hand. 3

Time In Seconds I can recall that 1 hour = 60 minutes. Well, 1 minute = 60 seconds! We use s to stand for seconds. Use a stopwatch to see what you can do in 1 second! 4

Time In Seconds after 30 s 3. 00 p. m. after 30 s 3. 01 p. m. 5

Time The 24 -hour Clock What is the time shown on the clock? Using 12 -hour clock 9. 30 a. m. Nine thirty a. m. Using 24 -hour clock 09 30 Zero nine thirty hours 6

Time The 24 -hour Clock What is the time shown on the clock? Using 12 -hour clock 10. 00 p. m. Ten p. m. Using 24 -hour clock 22 00 Twenty-two hundred hours 7

Time The 24 -hour Clock 8

Time Example Fill in the blanks. 12 -hour clock 4. 30 a. m. 5. 20 p. m. 3. 15 p. m. 2. 05 a. m. Noon 9. 55 p. m. 24 -hour clock 04 30 17 20 15 15 02 05 12 00 12. 40 p. m. 21 55 12 40 5. 05 a. m. 05 05 9

Time Word Problems Arianne started reading the newspaper at 18 00. She finished reading at 19 20. How long did she take to read the newspaper? I can solve this using a time line. She took 1 h 20 min. 10

Time Word Problems Justin finished cooking his lunch at 13 45. He took 2 h 10 min to cook. At what time did he start cooking his lunch? Count backwards on the time line. He started cooking at 11 35. 11

Time Example Andy took a flight from Melbourne to Singapore which lasted 9 h 30 min. He stopped in transit for 2 h before taking a connecting flight to Penang for 1 h 15 min. If he landed at 08 30 on Tuesday, when did he leave Melbourne? He left Melbourne at 19 45 on Monday. 12

Time Example Jermaine started watching a movie marathon at 19 30. He finished watching the movies at 02 45 the following day. How long was the movie marathon? 4 h 30 min + 2 h 45 min = 6 h 75 min = 7 h 15 min The movie marathon lasted 7 h 15 min. 13

Time Reference - Textbooks Learning Outcomes Telling time in seconds Understanding and using the 24 -hour clock Solve word problems related to time 4 B Pg 81 – 85 4 B Pg 64 – 67 4 B Pg 86 – 89 4 B Pg 68 – 71 4 B Pg 89 – 97 4 B Pg 72 – 76 14