Week 5 – Lesson 1 (Time)

Grade: 5
Subject: Mathematics
Date: November 2020
Topic: Time
 
 

Time is an aspect of measurement and there are three main ways of measuring time.
1.  By clock

That is, the exact time of day when something is done. The time your math class begins, the 
time you get up in the mornings, the time your school dismisses (5:30am, 6:45pm, 8:20am)
2. By the calendar

The time something actually happens on our calendar. The time we are born, the first week in 
July, the first month we have Christmas(December).
3. Time Interval

That is, the total length of time taken to do something. It takes me 45 mins to get ready for 
school, it takes 2 1/2 hrs for the movie to end, the barber takes 15 minutes to cut my hair.
Activity
Write the missing numbers for the following.
1.  240 minutes  =  ________ hours
2. 6 minutes  = __________ seconds
3. 4 1/2 hours  = __________ minutes
4. 450 years = ___________ century
5. 56 days = ___________ weeks
6. 180 seconds = ___________ minutes
7. 8 1/2 decades = ____________ years 
8. 5 fortnight( not the game of course  ;-) ) = ____________ weeks.
Fill the blanks with the correct responses.
Interval,      Clock,       Calendar
9. The Prime Minister spoke to the nation at 9:00pm ___________________ .
10. Jamaica and Trinidad got Independence in 1962 ___________________ .
11. Caribbean Airlines took 3 1/2 hours from Norman Manley International Airport to Grantley 
Adams Airport in Barbados ________________ .
12. The X-Men movies lasted for 2 hours and 45 minutes . It was so exciting ____________ .
Remember these! 

• Noon is 12 o' clock in the daytime.

• Midnight is 12 o' clock in the night.

• a.m. hours are those between midnight and noon

• p.m. hours are those afternoon and before midnight

• There are 12 hours of a.m. and 12 hours of p.m. in a day

It is important to know the difference between these aspects of time.
After the summer holiday, school will resume the first week in September.
My teacher says school will begin at 8:30a.m.
I will have to leave home at 7:15 because it takes me 45 minutes to get to school. 
Now study this table on the Units of Time!

60 seconds (s)   =

1 minute (min)

60 minutes (min)  =

1 hour (h)

24 hours (h) =

1 day (d)

7 days (d)  = 

 1 week (wk)

4 weeks (wk) =

1 month (mth)

2 weeks (wk) =

1 fortnight

12 months (mth) =

1 year (yr)

52 weeks (wk) =

1 year (yr)

365 days (d) =

1 year (yr)

366 days (d) =

1 year (yr)

10 years(yr) =

1 decade

100 years (yr) =

1 century