Lesson 1 Speed, Distance and Time in 21st Century MATHletes 6
November 23, 2018
7:30-8:30 a.m
l. Objectives:
At the end of 45 minutes period, 85% of BEED 4B students are expected to:
a. Define the speed, distance and time
b. Appreciate the importance of the speed, distance and time through giving
example of experience
c. Compute the speed, distance and time of the problem.
ll. Subject Matter:
a. Topic: Speed, Distance and Time
b. Reference: 21st Century MATHletes by perez, et al. p. 253-259
c. Materials: Visual aids, board
d. Strategy: 4A’s
e. Approach: learner centered approach
f. Skills Integration: reasoning skills
g. Values Integration: cooperation and respect
h. Subject Integration: Values Education
lll. Procedure:
Teacher’s Activity
A. Preliminary Activities:
1. Prayer
2. Checking of attendance
3. Checking of classroom setting
4. Recapitulation
-
What is the topic we discussed
last meeting?
Students’ Activity
(the answer will be the last topic discussed)
5. Motivation:
The teacher will say “run” to act
like running and “walk” to act like
walking and students will follow the
instruction of what the teachers
doing.
B. Developmental Activities
A. Activity:
-
-
Please count 1-2-3 to form a three
group for we will be having an
activity, please start.
Kindly choose your group leader
likewise your secretary.
1-2-3-1-2-3-1-2-3……
-
For this group activity, you will write
S if it is for speed, D if it is for
distance and T if it is for time.
-
I will only give you 2 minutes to talk
among yourselves then the
presentation will immediately follow.
-
Group 1,2 and 3 form a line.
-
The leader will be the first to answer
followed by the secretary and the
member.
-
Is the instruction clear?
Are you now ready?
Yes, Sir
You may now start
(The students will be performing the activity)
-
(After two minutes...)
Answer:
-
-
Please start answering the question
in the board.
Very good presentation group 1, 2
and 3. Let us, give one another a
“very good clap”.
B. Analysis:
-
(The teacher will facilitate the
discussion through asking questions
by posting the visual aids and will be
letting them express their thoughts
about speed, distance and time)
GROUP 1
GROUP 2
GROUP 3
1. D
2. S
3. T
4. S
5. D
6. S
7. T
8. S
9. T
10. D
11. T
12. D
13. S
14. T
15. D
1. T
2. D
3. S
4. D
5. T
6. D
7. S
8. D
9. S
10. T
11. S
12. T
13. D
14. S
15. T
1. S
2. T
3. D
4. T
5. S
6. T
7. D
8. T
9. D
10. S
11. D
12. S
13. T
14. D
15. S
-
What did you observe in our
activity?
Sample answer: It’s all about speed, distance and
time.
-
What is speed, distance and time?
Sample answer: Speed is fast or slow moving,
distance is the far or near of the place and time is
the happening hour, minute or second.
-
Is it important? why?
Sample answer: Yes because it is made by God
and we need to study this because it is in
everywhere so we need to be aware.
C. Abstraction:
-
Let us find out what is speed,
distance and time really mean, are
you now ready?
-
Will you please read the definition of
speed?
-
Very good.
-
Will you please read the definition of
average speed?
-
Very good
-
What is the difference between
speed and average speed?
-
Very good
-
(The teacher will give an example
about average speed)
-
Example 1: If a car travels 100
kilometers in 2 hours, find the
average speed.
Solution: using the average speed
formula.
distance
Average speed= time
=100
2
=50 kph
-
Answer: The average speed of the
car is 50 kph
-
Will you please read and answer the
example 2?
Yes, sir
Speed is a scalar quantity that refers to “how fast
an object is moving.” Speed can be thought of as
the rate by which an object covers distance.
(the explanation may vary)
Average speed is a measure of the distance
traveled in a given period of time; it is sometimes
referred to as the ratio of distance and time.
(the explanation may vary)
Sample answer: Speed is focus on how fast the
object is moving while the average speed is
getting the distance and time equally.
Example 2: Roy drives at an average of 45 mph
on a journey of 135miles. How long does the
journey take?
Solution: using the average speed formula.
distance
time
=135miles
45 mph
= 3 hours
Average speed=
-
Very good.
Answer: The journey takes 3 hours.
-
What is the importance of speed?
Sample answer: The importance of speed is to
make our work faster and we can go to the place
in a short of time like going to the school, I walk
fast to arrive on time.
-
Very good.
-
Will you please read the definition of
distance?
-
Very good.
-
(The teacher will give an example
about distance)
-
Example 3: Lemuel’s motorcycle’s
average speed on a motorcycle is
50 km/h. If he drives it for 4 ½
hours, how far does he travel?
Distance is the total length between two positions.
Distance is the amount of space between two
objects or the state of being far apart.
(the explanation may vary)
Solution: using the formula to find
the distance.
Distance= speed x time
= 50 x 4 ½
= 225 kilometers
Answer: he can travel a distance of
225 kilometers
-
Will you please read and answer the
Example 4: Sean drove 20 km/h for 2 ½ hours,
example 4?
what was the distance Sean traveled?
Solution: using the formula to find the distance.
Distance= speed x time
= 20 x 2 ½
= 50 kilometers
Answer: Sean traveled was 50 kilometers.
-
Very good.
-
What is the importance of distance?
-
Will you please read the definition of
time?
-
Very good
-
The formula to find the time is
Sample answer: The distance is important to
know if the place we wanted to go is far or near.
Example going to school if you are near you just
need to walk to save a money.
Time is the quantity measured or measurable
period during which an action, process, or
condition exists or continues.
distance
Time= speed
-
(The teacher will give an example
about time)
-
Example 5: Wilson can type 840
words in 20 minutes. Calculate his
typing speed in;
a. words per minute
b. words per hour
Solution:
his typing speed can be calculated
as:
840
a. typing speed= 20
= 42 words
per minute.
In 1 hour, we have 60 minutes, so:
b. typing speed= 42 x 60
= 2520
words per
hour
-
Will you please read and answer the
example 6?
Example 6: Anthony can speak 700 words in 5
minutes. Calculate his speaking speed in:
a. words per minute
b. words per hour
Solution: his typing speed can be calculated as:
700
a. typing speed= 5
= 140 words per minute.
In 1 hour, we have 60 minutes, so:
b. typing speed= 140 x 60
= 8,400 words per hour
-
Very good.
-
What is the importance of time?
-
Very good.
-
The teacher will show a diagram:
Sample answer: The time is very important to
guide us on what we are doing and we need to
use it properly because time is gold and it is the
most precious gift from God that we received
because our life depends in our time. Example if
you have an assignment or project do it
immediately to use your time wisely.
D
S
T
-
What is the diagram show?
-
Excellent.
-
Do you have a question?
-
Let us now proceed to our next
activity.
D. Application:
-
The teacher will divide the class into
three groups.
-
Kindly choose your group leader
likewise your secretary.
-
For this group activity, you will
answer the speed, distance, and
time of the problem by using the
formula.
Sample answer: The diagram show that to easily
remember the formula in getting speed, distance
and time.
Distance= speed x time
Speed= distance / time
Time= distance / speed
Sample answer: None sir
-
I will only give you 3 minutes to talk
among yourselves then the
presentation will immediately follow.
-
Is the instruction clear?
Are you now ready?
Yes sir
-
You may now start
(The students will be performing the activity)
-
For numbers 1-5, calculate the
distance that you would travel if you
drove for:
1. 2 hours at 30 km/h
2. 7 hours at 65 km/h
3. ½ hours at 46 km/h
4. 5 hours at 80 km/h
5. 1 ½ hours at 55 km/h
Answer:
1. 60 kilometers
2. 455 kilometers
3. 23 kilometers
4. 400 kilometers
5. 82 ½ kilometers
For numbers 6 -10 time, how
long does it take to travel?
6. 100 kilometers at 20 km/h?
7. 180 kilometers at 45 km/h?
8. 250 kilometers at 25 km/h?
9. 280 kilometers at 40 km/h?
10. 320 kilometers at 80 km/h?
For number 11and 12, speed.
11. and 12. A car travels 200
kilometers in 8 hours. Calculate
the average speed of the car in:
a. kilometers per hour
b. kilometers per minute
-
6. 5 hours
7. 4 hours
8. 10 hours
9. 7 hours
10. 4 hours
11. – 12.
a. 25 kilometers per hour
b. 1500 kilometers per minute
Presentation….
IV. Evaluation:
Solve each problem.
1. Mhar took a 5-hour bicycle trip. In all, he traveled 120 kilometers. What was his
average rate of speed? 24 km/h
2. Rolly travels from Lucena City to Manila every Saturday to visit his mother. The
trip takes 3.5 hours and he usually travel at an average rate of 64 km/h. how
many kilometers does Rolly travel from Lucena City to Manila? 224 kilometers
3. Wilfredo can write 200 words in 5 minutes. Calculate his writing speed in:
a. words per minute = 40 b. words per hour = 2,400
V. Assignment:
Solve the problem.
1. Alfred drives for 1 ½ hours at 75 km/h, then drives 120 kilometers at 60 km/h,
and finally drives for 30 minutes at 65 km/h. Calculate his average speed for the
whole journey?
Prepared by:
Mhar Anthony P. Duroy
Student teacher