LESSON 55:FINDING ELAPSED TIME
Objective : Find the elapsed
Time in minutes and seconds
Value focus:
Love for sports
Prerequisite Concepts and skills
Telling time in minutes and seconds.
Converting time from minutes to seconds and vice versa
INSTRUCTIONAL PROCEDURE
A . Preliminary Activities
1.Drill
Write the time using a.m. and p.m.
1 | 48 minutes past 11 in the morning | 11:48 a.m. |
2 | 9 minutes past 4 in the afternoon | |
3 | 35 minutes past 12 noon | |
4 | 15 minutes past 8 in the morning | |
5 | 24 minutes past 9 in the evening | |
6 | 20 minutes before 12 midnight | |
7 | 5 minutes before 11 in the morning | |
8 | 25 minutes before 6 in the evening | |
9 | 5 minutes before 7:15 in the morning | |
2.Review
Conduct a review on
converting minutes to seconds
and vice versa
How many seconds are there in one minute?
How many seconds are there in 5 minutes? etc
How many minutes are there in 360 seconds? etc
3.Motivation
Say something about the boy.
Do you also play tennis?
What is your favorite sport?
Do you love playing your
favorite sports?
With whom do you play your
favorite sport?
(Relate the value of love for
SPORTS. )
B . Developmental Activities
1. Presentation
Problem Opener
Rico and his friend started playing tennis at 8:10 am
and ended at 8:55 a.m. How long did they play?
Who played tennis ? What time did they
they playing?
At what time did they end playing?
What does the problem ask you to do?
4.Reinforcing and Concept and Skill
Discuss Explore and Discover page 174
Do Get Moving
On page 175
B . Do Keep Moving on
176 LM
Keep Moving B. !
5.Generalization
What is elapsed time ?
How do you find elapsed time?
6.Applying to New and Other situations
Apply Your Skills on page177
Read and solve each problem . Write your answer
In your notebook.
1.Alen began his breakfast at 6:55 a.m. and finished
at 7:10 a.m. How long did it take him to eat?
2.Mary left school at 4:15 p.pm. And arrived home at
5:05 p.m. How long did she travel?
3. The Cruz family arrived at the bus station at 7:30 a.m. The bus left at 8:15 a.m. How long did they wait?
4. Carlo finished the 100 –meter distance in 48 seconds as shown in the stopwatch . If the timer
started recording the time after 5 seconds, how long was Carlo’s running time?
Solve the following Problems
1. At 1:02:10 p.m. Mark started
walking from their classroom to the library. If he reached the library
At 1:02:54 p.m., how long did it take
Mark to reach the library?
2. Mr . Castro left Manila at 12:05 p.m.
and reached Naga City at 1:02 p.m.
How long was the trip?
Thank You So Much
MARVIE T.BLANCO
FOUR-KINDNESS
URDANETA I CENTRAL SCHOOL
URDANETA CITY,PANGASINAN