Page 214 - NUMINO TG_2A
P. 214
13Minutes Unit

2 Solve each word problem. 2. Have students find the elapsed time by
guessing how many hours have passed
a A TV program starts at 2:00 P.M. It finishes at 3:00 P.M. without using a model clock.
How long is the TV program? Have students who are having difficulties use
a model clock or draw clocks to solve the
1 hours problems.

2a. 11 12 1
10 2
b Thomas starts mountain climbing at 6:00 A.M. 93
He comes down at 9:00 A.M. 84
How long does Thomas climb the mountain?
765
3
hours Start time 2:00 P.M.
End time 3:00 P.M.
c Ann feeds her puppy at 9:00 A.M. and then at 2:00 P.M. Intervals between the numbers: 1 = 1 hour
What is the time interval between the puppy’s meal times?
2c. Students can subtract larger numbers
5 hours from smaller numbers to switch from A.M. to
P.M. Students may find this difficult, so guide
them through it.

3. Check Point

d The ship leaves at 10:00 A.M. It arrives at the port at 2c. Students have learned how to find
2:00 P.M. How long does the ship take? elapsed times in hours. Go over with them
4 hours that when looking for the elapsed times in
hours, they can count the intervals between
13. Minutes 123 the numbers or count the number of rotations
the minute hand makes.

Make your own word problems
Have students make their own word problems from real-life experiences. This will improve their creative thinking
and problem solving skills. It will also give them an opportunity to practice and enjoy learning about time.
Example: I started watching my favorite TV show at 1:15. If the clock reads 4:15 when the TV show finished, for

how many hours did I watch the show?

2A Unit 13 197
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