1. Time and Temperature

2. I can find measurements of time and temperature.

3. Time
1 year (yr) = 365 days
1 year = 12 months (mo)
1 year = 52 weeks
1 week = 7 days
1 day = 24 hours (hr)
1 hour = 60 minutes (min)
1 minute = 60 seconds (s)

4. Let’s Try this one together:
Convert.
2 hr 5 min = _____ min
2 hours 5 minutes
Think: 1 hour = 60 minutes.
(2  60) minutes plus 5 minutes
125 minutes
2 hr 5 min = 125 min

5. Now you try it:
Convert.
195 min = _____ hr
1 hr min
Think: 1 hour = 60 minutes.
195 min • = hr
195 min = 3 hr
1 4
Write as a mixed number.

6. Think: 1 hour = 60 minutes and 1 minute = 60 seconds. 60 min 1 hr
Let’s try another one:
Convert.
3 hr = _____ s
Think: 1 hour = 60 minutes and 1 minute = 60 seconds.
60 min 1 hr
60 s 1 min
3 hr •
= 10,800 s •
3 hours = 10,800 seconds

7. Let’s try to convert day to hours:
3 days 7 hr = _____ hr
3 days 7 hours
Think: 1 day = 24 hours.
(3  24) hours plus 7 hours
79 hours
3 days 7 hr = 79 hr

8. How about months to years?
Convert.
102 mo = _____ yr
1 yr mo
Think: 1 year = 12 months.
102 mo • = yr
102 mo = 8 yr
1 2
Write as a mixed number.

9. Let’s try days to minutes:
Convert.
2 days = _____ min
Think: 1 day = 24 hours and 1 hour = 60 minutes.
24 hr 1 day
60 min 1 hr
2 days •
= 2,880 min •
2 days = 2,880 min

10. The time between the start of an activity and the end of an activity is called the elapsed time.

11. Let’s review Elapsed Time:
Shawn was scheduled to arrive at 10:15 A.M. he was 1 hour and 55 minutes late. When did he arrive?
Scheduled time: 10:15 A.M.
Think: 1 hour after 10:15 A.M. is 11:15 A.M. 55 minutes after that is 12:10 P.M.
Arrival time: 12:10 P.M.
Shawn arrived at 12:10 P.M.

12. Now you try it:
Ty met his friends at 1:35 P.M. He had traveled for 2 hours and 45 minutes. At what time did Ty begin his trip?
End time: 1:35 P.M.
Think: 2 hours before 1:35 P.M. is 11:35 A.M. 45 minutes before that is 10:50 A.M.
Begin time: 10:50 A.M.
Ty began his trip at 10:50 A.M.

13. Let’s try another one:
Trent’s ferry was scheduled to arrive at 9:45 A.M. he was 1 hour and 15 minutes late. When did he arrive?
Scheduled time: 9:45 A.M.
Think: 1 hour after 9:45 A.M. is 10:45 A.M. 15 minutes after that is 11:00 A.M.
Arrival time: 11:00 A.M.
Trent’s ferry arrived at 11:00 A.M.

14. Check It Out:
Franco’s train arrived at 4:55 P.M. He had traveled for 3 hours and 15 minutes. At what time did Franco’s train depart?
Arrival time: 4:55 P.M.
Think: 3 hours before 4:55 P.M. is 1:55 P.M. 15 minutes before that is 1:40 P.M.
Departure time: 1:40 P.M.
Franco’s train departed at 1:40 P.M.

15. Be A STAAR:
At 8:00am the temperature was 50 degrees in Houston, then raised 5 degrees every hour after 10am until it was 4:00pm. What was the difference in temperature from the morning until 4:00pm when the students were released from school?

16. Insert Lesson Title Here
Lesson Quiz
Convert.
1. 17 min = _____ s days = _____ weeks
hr = _____ weeks
4. Ray drove 3 hours and 10 minutes to visit friends. He started his trip at 9:45 A.M. What was his arrival time?
1,020 7 2
12:55 A.M.