Time LP

1

• Write down everything you know about time?

2
Starter Time Conversions

• 1 Minute Seconds
• 1 Hour Minutes
• 1 Day Hours
• 1 Year Days

60
60
24
365
Extension How many Seconds in a day?
3
WALT How do I convert between units of time and
solve problems?
Saturday, 15 April 2017
Time

• WILF
• Able to understand 12 hour and 24 hour time.
• Able to convert units of time.
• Able to solve real life application problems.

4
Examples

• Convert 3 hours 30 minutes to a time in minutes

Convert 150 minutes to a time in hours and
minutes
5
AFL 1

• Convert to a time in minutes
• (a) 2 hours 20 minutes(b) 3 hours (c) 4 hours
  15 minutes(d) 8 hours 45 minutes(e) 10 hours 45
  minutes

2. Convert to a time in hours and minutes (a)
90 minutes(b) 100 minutes(c) 200 minutes(d)
108 minutes(e) 322 minutes
6
Answers

• Convert to a time in minutes
• (a) 2 hours 20 minutes 140 minutes(b) 3 hours
  180 minutes(c) 4 hours 15 minutes 255
  minutes(d) 8 hours 45 minutes 525 minutes(e)
  10 hours 45 minutes 645 minutes

2. Convert to a time in hours and minutes (a)
90 minutes 1 hour 30 minutes(b) 100 minutes 1
hour 40 minutes(c) 200 minutes 3 hour 20
minutes(d) 108 minutes 1 hour 48 minutes(e) 322
minutes 5 hour 22 minutes
7
Examples

• Convert 3 minutes 5 seconds to a time in seconds

Convert 160 seconds to a time in minutes and
seconds
8
AFL 2
3. Convert to a time in seconds (a) 2 minutes
20 seconds (b) 10 minutes (c) 5 minutes 30
seconds (d) 4 minutes 20 seconds (e) 15 minutes
15 seconds
4. Convert to a time in minutes and
seconds (a) 90 seconds(b) 240 seconds(c) 310
seconds(d) 500 seconds(e) 185 seconds
9
Answers
3. Convert to a time in seconds (a) 2 minutes
20 seconds 140 seconds(b) 10 minutes 600
seconds(c) 5 minutes 30 seconds 330 seconds(d)
4 minutes 20 seconds 260 seconds(e) 15 minutes
15 seconds 915 seconds
4. Convert to a time in minutes and seconds (a)
90 seconds 1 min 30 seconds(b) 240 seconds 4
min (c) 310 seconds 5 min 10 seconds(d) 500
seconds 8 min 20 seconds(e) 185 seconds 3 min 5
seconds
10
Real world Problems

• 5. The film Forrest Gump lasts 142 minutes. How
  long is this in hours and minutes?
• 6. The film Titanic lasts 210 minutes. How long
  is this in hours and minutes?
• 7. The film Shutter Island lasts 138 minutes. How
  long is this in hours and minutes?

Extension How long would it take in total to
watch all 3 films?
11
Answers

• 5. The film Forrest Gump lasts 142 minutes. How
  long is this in hours and minutes?
• 6. The film Titanic lasts 210 minutes. How long
  is this in hours and minutes?
• 7. The film Shutter Island lasts 138 minutes. How
  long is this in hours and minutes?

2 hours 22 minutes
3 hours 30 minutes
2 hours 18 minutes
Extension How long would it take in total to
watch all 3 films?
8 hours 10 minutes
12
24 Hour Time
13
Where in life do we see and use 24 hour time?
14
Examples

• Convert the following from 12 hour time to 24
  hour time
• 645 a.m.
• 815 p.m.

• Convert the following from 24 hour time to 12
  hour time
• 0955
• 1837

15
Converting time-AFL3
1200
2230
0320
0005
1950
1725
443 p.m.
230 a.m.
520 a.m.
000 a.m.
840 p.m.
900 p.m.
16
What is the different between a.m. and p.m. ?
Ante MeridiemAnte MeridianLatin before
midday"

• Post MeridiemPost MeridianLatin "after
  midday"

17
AFL -4- Random selector Show the given 24-hour
time on the analogue clock.
0520
1430
18
Show the given 24-hour time on the analogue clock.
2340
0350
19
Show the given 24-hour time on the analogue clock.
1915
0025
20
Real life 24 hour time questions

• If I got home at 1730 and went to bed at 2130,
  how long was I at home before I went to bed?
• A car race began at 0845 and finished at 1435.
  How long did the race last?
• The sun sets at 1930 and rises again at 0630.
• a) How many hours of darkness are there?
• b) How many hours of daylight are there?

4 hours
5 hours 50 minutes
11 hours
13 hours
21
Plenary What have you learned?

• Create a list of everything you have learned in
  todays lesson.