Republic of the Philippines
Department of Education
Region IV – A (CALABARZON)
Schools Division of Lipa City
ANILAO NATIONAL
HIGH SCHOOL
Anilao, Lipa City
A Detailed Lesson Plan in Mathematics 9
I.
LEARNING
OBJECTIVES
At the end of the lesson, the students
must be able to:
1.
Recall
simplifying radical expressions.
2.
Add
radical expressions.
3.
Relate
the topic in real-life situations.
II.
LEARNING
CONTENT
A.
Topic: Addition of Radical Expressions
B.
Instructional Materials: laptop, TV, manila papers, markers, chalk,
chalkboard
C.
References: Hands-On, Minds-On Activities in Mathematics II by Dionio,
Janet D., et. al, pp. 165-168
Mathematics Learner’s Material 9, pp.
260-261
Intermediate Algebra Textbook for Second
Year by Bernabe, Julieta G. and Soledad Jose-Dilao, Ed. D., pp. 149-151
https://www.youtube.com/watch?v=xQ-esyi_ziM
D.
Values Integration: “Every addition to true knowledge is an addition to
human power.”
III.
LEARNING
PROCEDURE
|
Teacher’s Activity
|
Student’s Activity
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A.
DAILY ROUTINE
1.
Prayer
2.
Greetings
Good
afternoon, class.
3.
Classroom Management
Before
you take your seat, kindly check the alignment of your chairs and pick up the
messes under it.
4.
Checking of Attendance
Who is the secretary of the class?
Kindly submit to me the list of the absentees for today before I leave the
room.
B.
PRIMING
1.
Motivation
Before
we start our lesson for today, let’s first sing a song. The song is in the
tune of “You Belong With Me.”
2.
Video Presentation
I
have here a video about our topic for today. Study and analyse the content of
the video together with its examples given. Remember to note important
details from the video. After that, we will have an activity.
Is
that clear?
C.
ACTIVITY
Let’s have an activity.
The class will be divided into 4
groups. Your group will be based on your birth month. Those who have their
birthdays on January, February and March will be the group 1, April, May and
June will be the group 2, July, August and September will be the group 3 and
October, November and December will be the group 4. Each group will receive
an envelope containing the materials you will use and the task that you are
going to do. You are only given 5 minutes to finish your activity.
Are my instructions clear?
Before you proceed to your respective
groups, please be guided by the word “RADICAL”.
And be guided by the following set of
criteria.
Directions: Simplify the given radical
expressions. Box your final answer.
Examples:
·
·
    
1.
2.
3.
4.
D.
ANALYSIS
1.
How did you answer the given activity?
2.
How do you think the given expressions were
simplified?
·
The expressions were simplified by adding the
radicals.
3.
Based on the activity, how do we add radicals?
·
Similar
Radicals
are radicals with the same order or index and the same radicand.
·
Dissimilar
Radicals
are radicals of different indices and different radicands. These radicals
cannot be added.
Example:
a.
 = 
b.
c.
    
d.
E.
ABSTRACTION
To sum up:
How do we add similar radicals?
How about radicals with different
radicands?
F.
APPLICATION
Now that you already know how to add
radicals, I have here a quotation. Kindly read altogether.
What insights can you give based on
the quotation? Who can relate it to our topic for today?
We all know that knowledge is power as
power increases with knowledge. We can acquire these knowledge through
personal experiences. If we have acquired knowledge, we also have the power
to solve different problems easily. In relation to our topic for today, in
addition of radical expressions, If you have the knowledge of simplifying
radicals and other concepts that are needed, you can easily apply it and add
radical expressions.
|
Heavenly Father,
You hold each of us in your loving hands. Come fill our hearts, minds and bodies afresh with hope. Help us to cast our worries upon you, so that we can embrace our learning today. Bless us as we study and grow together. Come and anoint those who teach and tutor us to be bringers of insight and knowledge. Lord, watch over us all, keep us safe within your Almighty hand. Amen.
Good
afternoon, Ma’am.
Yes, Ma’am.
Tune: You
Belong With Me
I.
You’re in the room with your teacher she’s asking
She’s telling
off about something you should know
‘Cause she
doesn’t get your humor like I do
II.
I’m in the room, it’s a typical Wednesday right
I’m listening
to the kind of lesson you doesn’t like
And she’ll
never know your story like I do
Refrain
But she knows index
I know radicals
She simplify it and add on the similar
Dreaming about the way when you make
up and find
That what you’re solving for has been
here the whole time
Chorus
If you could add the radicals
I understand you
Been here all along
So why can’t you see
You can add with me
You can add with me.
Yes, Ma’am.
Yes, Ma’am.
R
- Read the directions carefully.
A
- Analyze the given expressions.
D
- Directions must be followed.
I
- Involve yourself in the activity.
C
- Cooperation must be observed.
A
- Apply what you have learned.
L
- Legibility and neatness of your work is needed.
1.
2.
3.
4.
Student’s
answers may vary.
Student’s
answers may vary.
Student’s
answers may vary.
   
We add similar
radicals by adding the coefficients then affix the common radical.
Simplify the
radicals then combine the similar terms.
“Every
addition to true knowledge is an addition to human power.”
Student’s
answers may vary.
|
III.
ASSESSMENT
Directions: Simplify the following
radical expressions. Box your final answer.
1.
2.
3.
4.
5.
IV.
ASSIGNMENT
Directions: Simplify the following radical
expressions.
1.
2.
3.
4.
5.
Prepared by:
JAMISAL, JENNY
P.
