The document outlines objectives and activities related to calculating elapsed time, emphasizing its importance in real-life scenarios and sports. It includes various exercises and problems that require students to compute time durations, manage time effectively, and collaborate in groups. Additionally, it explains methods for finding elapsed time and prompts discussions about problem-solving strategies.

1. FINDING ELAPSED TIME
Wenefredo S. Hifarva Jr
Paradise Embac Elementary School
Paquibato District
Division of Davao City

2. OBJECTIVES:
1. Find the elapsed time in minutes and
seconds correctly.
2. Solve routine and non-routine
problems involving elapsed time.
3. Articulates the importance of
sports to human.

6. Use a.m. and p.m. in telling time
1) 48 minutes past 11 in the morning
2) 9 minutes past 4 in the afternoon
3) 35 minutes past 12 noon
4) 24 minutes past 9 in the evening
Answer: 11:48 a.m.
Answer: 04:09 p.m.
Answer: 12:35 p.m.
Answer: 09:24 p.m.

7. Convert minutes to seconds and vice versa
3 minutes = ____ seconds
5 minutes = ____ seconds
1 minute = ____ seconds
120 seconds = ____ minutes
180 seconds = ____ minutes
Answer: 180 seconds
Answer: 300 seconds
Answer: 60 seconds
Answer: 2 minutes
Answer: 3 minutes

9. Who played soccer?
 What time did they start playing?
What time did they end playing?
What does the problem ask you to find?
Rico and his friend started playing soccer at
8:10 a.m. and ended 8:55 a.m. How long did
they play?

10. RUBRICS FOR THE ACTIVITY
3 2 1
Cooperation All members
are on task at
all times
Most of the
members are
on task at all
times
Some of the
members are
on task at all
times
Time
Management
The group
finish ahead of
time with
complete data
The group
finish on time
with
incomplete
data
Do not finish
on time with
incomplete
data

11. Activity 1
Matt went to the store to buy school
supplies. He left his house at 11:27 a.m. He
returned home at 1:06 p.m. How long did
it takes Matt to buy school supplies and
return home?

12. Activity 2
The Santos family left home for the
beach. They reached the beach at 8:35
a.m. and stayed there for 6 hours and 45
minutes. What time did they leave the
beach?

13. - How did you solve the problem?
- Do you agree the answers of group
1, 2, and 3? Why?
- What are that different way that
each group used in arriving the
answer?
- Which is the easiest way? Why?

14. WHAT IS ELAPSED TIME?
Elapsed time – is the duration or length of
time that an event occured.
3 WAYS TO FIND ELAPSED TIME?
1. Count the number of minutes or seconds from the
time started to the time ended,
2. Subtract the time started from the time ended or
3. Use the linear clock, ruler clock or real clock

15. Problem 1
Mikay’s birthday party began at 5:23
and ended at 8:45 p.m. How long did the
party last?

16. Problem 2
Lillian’s son lives in the United States. The time
the Philippines is 9 hours late of the time in
States.
a. If Lillian’s son wants to call her up at 9:00
Philippines time, what time should he call?
b. If his son received a call from her mother at
5:30 p.m., what time is it in the Philippines?

17. READ AND PROBLEMS AND ANSWER THE QUESTIONS.
2. The class party started at 2:00 p.m. It lasted for 5 hours
and 35 minutes. At what time did the party end?
1. A bus left the station at 8:30 a.m. and arrived at its
destination at 4:55 p.m. on that same day. How long was
the trip?

18. ASSIGNMENT
Read and solve the problem carefully.
Winnie had to meet his friend at the park at 8:10 a.m.
He arrived at the park 35 minutes earlier. At what time
did Mark arrive at the park?

19. THANK YOU
VERY MUCH!