Lesson Plan in Mathematics 7

Time: 10:20-11:10 AM
Grade and Section: G7-Gold

I. Objectives

At the end of the lesson, the learners should be

able to:
1. Read and record thermometer readings; and
2. Measure temperature using a thermometer

A. Content Standards
The learner should demonstrate understanding of
area, volume and temperature.
B. Performance Standards
The learner is able to apply knowledge of area,
volume and temperature in
mathematical problems and real-life situation.
C. Learning Competencies
Reads and measure temperature using
thermometer (alcohol and/or digital) in degree
Celsius.

II. Subject Matter

A. Topic
Measures of Temperature
B. References
Mathematics Second Quarter- Module 9
Measurement
C. Materials
Pictures, thermometer, activity sheets, ppt, Chalk,
laptop.

III. PROCEDURE

A. Before the lesson(10-12minutes)

Teacher’s Activity Learner

a. Routine Activity (3 minutes)

 Prayer
 Greetings
 Checking of Attendance
 Setting Standards

b. Review
-Our last topic is about Measures of Length and
- What was your last topic? Anyone? Measures of Weight and Mass.
Very Good!

- What is the basic unit of length? - The basic unit of length is Meter(m).
Anyone?

- What is the basic metric unit of weight?

- The basic unit metric of weight is Gram(g).

- Who can answer this problem? How - There are 500 centimeter Sir.
many centimeters are there in 5 meters?
- Correct

- Who can answer this problem? How

many meters are there in 5 hectometer?
- Very Good! - 500 meter Sir.

- Okay, seems like you already mastered

that topic lets go to our next topic.

c. Motivation

- Now before we discuss another lesson

for today, I want you to arrange the
following jumbled words that I will be
posting on the board. I’ll give you 2
minutes to think and after that I’ll call
someone to answer it. Is that clear? - Yes Sir.

(Jumbled words posted)

- EMTAPERTRUE (temperature)
THERMETMORE (thermometer)

- Alright, time is up. Who can guess the

first word? (ANSWERING….)
- Is that correct class?
- Very Good!

- Who can guess the second word? - Temperature Sir.

Anyone?
- Correct! -Yes Sir.

- Who got all the answers?

- Good to hear! -Thermometer Sir.

 B. During the Lesson (30 minutes)

d. Presentation and Discussion

 I have a question, who among you got a little (some will raise their hands)
brother or a little sister?

 Okay, Jonathan, your mother wants to find

out if your brother/sister have a fever, what - A thermometer Sir.
will she use to find your brother/sister’s
body temperature?

 That’s right! Your mother can use a

thermometer to get your brother/sister’s
temperature.

 If you have a sick brother/sister, what would

you do? - I will help my mother Sir.

 You can help your mother/father in what

way? - By taking care of my sick brother/sister.

 Have you seen a Thermometer? - Yes Sir

 What is thermometer? -is an instrument that measures temperature.

Very Good!

 Temperature refers to the degree of hotness

or coldness that can be measured using a
thermometer (from the Greek word thermos
means “heat” and metron means “measure”).

 The units used in measuring temperature are

degree Celsius(°C), kelvin(K) and degree
Fahrenheit(°F).

 Note: Celsius is 1.8 times larger than a

Fahrenheit.

 Following are the examples to illustrate units

of temperature:

A. The normal body temperature is about 37°C or

98.6°F.

B. Absolute zero, which is 0 K, means the

complete absence of heat and motion. So 0 K is
equivalent to -273.15°C or 459.67°F.
 Lets have a quick review.

- Who can tell me, what a temperature is?

Very Good! -Temperature is measure of hotness or coldness of

an object.
- How can we measure temperature?
-By using thermometer Sir.
That’s correct.

- °C means? °F means? And K means?

-degree Celsius, Fahrenheit and Kelvin.

E. Application

Lets have a activity. Solve the following to get the

temperature of each question.
Ans.
1. From 39.8 degree Celsius, Reina’s body
temperature got down by 2.3 degree Celsius. 1. 37.5 degree Celsius
What would be her new body temperature?
2. The boiling water is at its 35 degree Celsius 2. 50 degree Celsius
and after five minutes it will increase by 15
degree Celsius. What would be its new measure 3. 0 degree Celsius
of
temperature?
3. Baguio City is considered as one of the
summer capital in the Philippines because of its
cold weather. If the temperature is at its 30
degree Celsius and will go down by 30, what
would be its new temperature?

IV. Evaluation

Instructions: Supply the appropriate unit of

measure on the blank using the units °F, °C. Write
the answer on your 1/4 sheet of paper.

1. Coffee is heated at 413 ____.

2. Jazzi has a high fever of 39 ____. Answers

3. The ideal room temperature for sleeping is 75 1. °F

____.
2. °C
4. The temperature of cold juice is 10 ____.
3. °F
5. The surface temperature on earth is 302 ____.
4. °C
 5. °F

V. Assignments

Study in advance the Measure of Time and Rate.

Goodbye everyone!

Good bye and thank you Sir Charles.

NOEL C. MAHUSAY

Checked by:
 Lesson Plan in Mathematics 9

Time: 3:00-4:00 PM
Grade and Section: G9-Acasia

I. Objectives

A. Content Standards
The learner demonstrates understanding of key
concepts of variations.

B. Performance Standards
The learners will be able to formulate and solve
accurately problems involving variations.

C. Learning Competencies
(M9AL-IIa-1)
Objectives:
At the end of the lesson, the learners will be able
to:
 illustrate situations that involve inverse
variation;
 translate into variation statement a
relationship involving inverse variation
between two quantities; and
solve problems involving inverse variations.
II. Subject Matter

A. Topic
Inverse Variation
B.References
Mathematics 9 learners material
C. Materials
Pictures, thermometer, activity sheets, ppt, Chalk,
laptop.

III PROCEDURE

A. Before the lesson(10-12minutes)

Teacher’s Activity Learner

Routine Activity (3 minutes)

 Prayer
 Greetings
 Checking of Attendance
 Setting Standards

Motivation

MOTIVATION:
 Before anything else, I prepared here an
activity for our lesson today. This
activity will tell us the topic that I will be
discussing this afternoon.

So I want you to group yourselves into

four (2). Okay, let’s count 1…2…3…
4…

In this game, it will test your skills in

translating statements into mathematical
equations.

The first group that will finish the game

first will have an additional 5 points to
their quiz later. Answer to the activity
k
Okay open your book 1. n=
s

k
2. n=
d

k
3. d=
v

k
4. a=
m

k
5. b=
h

B. During the Lesson (30 minutes)

Presentation and Discussion

Inverse variation occurs whenever a

situation produces pairs of numbers
whose product is constant.

For two quantities x and y, an increase in

x cause a decrease in y or vice versa. We
can say that y varies inversely as x or
k
y= .
x
The statement, “y varies inversely to x,”

k
Translate to y= , where k is the
x
constant of variation.
 Example:
1. Find the equation and solve for k: y
varies inversely as x and y=6 when
x=18.

Solution: the relation y varies inversely

k
as x translates to y= . Substitute the
x
values to find k:

k
y=
x

k
6=
18
k =( 6 ) ( 18 )
k =108
108
The equation of variation is y=
x

Let’s have another example.

2. If y varies inversely as x and y=10
when x=2, find y when x=10. This
concerns two pairs of values of x and y
which may be solved in two ways

Solution 1: first, set the relation, and

then find the constant of variation, k.
xy=k
( 2 ) ( 10 )=k
k =20
20
The equation of variation is y=
x
Next, find y when x=10 by substituting
the value of x in the equation.
20
y=
x

20
y=
10
y=2
Solution 2: since k=xy, then for any
pairs x and y, x 1 y 1=x 2 y 2
If we let x 1=2 , y 1=10 ,∧x 2=10 ,
find y 2. By substitution.
x 1 y 1=x 2 y 2 Inverse variation occurs whenever a situation
produces pairs of numbers whose product is
2 ( 10 )=10 ( y 2)
constant.
20=10 y 2 .
: For two quantities x and y, an increase in x cause
 20 a decrease in y or vice versa.
y 2=
10
y 2=2
Hence, y=2 when x=10 k
: We can say that y varies inversely as x or y=
x
. The statement, “y varies inversely to x,”
When to know that it is a inverse k
Translate to y= , where k is the constant of
variation? x
variation.

In inverse variation, what will happen to

our x when our y is increasing?

What is the possible statement in dealing

inverse variation and how to translate it
into mathematical equation?

IV. Evaluation

1
Crosswise.
2
Answer :
Find the constant variation and write equation
representing the relationship between the
quantities. k
1. y=
x
1. y varies inversely as x and y=12 when x=5. k = y ( x)
k =12 (5 )
2. If y varies inversely as x and y=3 when x=4,
find y when x=6. k =60
60
y=
x

2. Equation relation: x 1 y 1=x 2 y 2

Constant variation: y=2

Equation variation: y=2 w h en x=6

D. Assignments
study in advance the next lesson.

Checked by: