Republic of the Philippines
Department of Education
Learning Area
MATHEMATICS 5
Learning Area: Mathematics
OBJECTIVES
A. Content
Standard
B. Performance
Standard
C. Most
Essential
Learning
Competencie
s (MELC)
Skills
Attitudes
Values
CONTENT
LEARNING
RESOURCES
PROCEDURES
4.1 Introduction
Grade Level: Quar
5
ter: 2
Duration: 50min
The learners demonstrate understanding of four
fundamental operations involving decimals and ratio and
proportion.
The learners is able to apply the four fundamental operations involving
decimals and ratio and proportion in mathematical problems and real-life
situations
Express ratio using either colon (: ) of fraction form.
Expressing ratio using either colon or fraction form
Wise use of water
Water conservation
Visualizes the ratio of two given numbers M5NS-IIh-122
Express ratio using either colon of fraction .
Expresses ratio in the simplest form – M5NS- IIi-125
Lesson Guide in Elementary Mathematics Grade 5
Power point presentation converted to video
Self Learning Materials (PIVOT4A) pages 29-32
1. Drill
Give the lowest term of the following fraction.
Review
Find the quotient of the given numbers.
1. 18.3 ÷ 6=
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2.
3.
4.
5.
71.28 ÷ 54 =
0.28 ÷ 0.4 =
729 ÷ 0.9 =
112 ÷ 0.16 =
MOTIVATION
Guessing the wordles ( Science Integration )
squareroot
table
multiplication
H2O
Water as H20
The ratio of Hydrogen atoms to oxygen atoms is two is to one.
Did you know that water is the most common chemical compound that makes up the
lakes, rivers and oceans. A molecule of water contains 2 atoms of hydrogen and 1 atom
of oxygen.
What is the importance of water in our life? As a pupil, how do you conserve water at
home and in school? ( Values Integration )
What are the uses of water? ( EPP and Health Integration ) use for cooking, drinking,
washing of clothes, watering the plants and cleaning our body.
Introduction
What I Need to know ?
After going through this lesson, you are expected to express ratio using either colon
or fraction.
WHAT is new?
Presentation: ( English Grammar Integration / Reading Comprehension )
Look at the illustration below.
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.
Development
How many
pupils are there?
How many
books are there?
How do you
relate the number of
pupils
to
the
number of books?
How many
quantities
were
compared?
What do you call if we are comparing two or more quantities?
Ratio is the comparison of two or more quantities.
What I know?
Read and understand.
In a grade 5 class, for every 9 girls there are 6 boys
How will you compare the number of girls to the number of boys in the classroom.
What is in?
The teacher will explain the following topics for deeper understanding of the lesson.
Ratio is a comparison of two or more objects
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Department of Education
Another example
Write each ratio in colon and fraction form . Always write your answer in lowest term.
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5 bottles
4 cans
Bottles to cans
Cans to bottles
10 apples
5 oranges
Apples to oranges
What is it?
. Let them perform the activity given.
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Read and answer.
It is Christmas time the Lumbre family are now preparing for their noche Buena. Inside
the fruit basket are 6 dalandan, 10 rambutan fruits, 7 star apples, 9 indian mangoes and
6 melons. Find the ratio of dalandan to rambutan fruits, star apples to Indian mangoes,
Indian mangoes to melon, and Indian mangoes to the total number of fruits.
Engagement
What’s more?
Express each ratio of the first quantity to the second quantity and reduce to its
simplest form. Write your answers in your notebook.
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Department of Education
1.
2.
3.
4.
5.
2 teachers to 46 pupils
21 garbage cans to 14 classroom
36 glasses of juice to 30 sandwiches
12 flowers to 4 vases
4 books to 10 pupils
What can I do?
Use the pictures below to write the following ratio in three form, then simplify.
In words
to
In colon
In fraction form
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Department of Education
To
To
To
To
What is ratio?
What are the ways in writing ratio?
What can I do? (Assessment)
Write the following ratios to lowest terms
1. 20 wins to 35 games
2. 12 red balls to 96 blue balls
3. What is the ratio of Saturday and Sunday to the days
in a week?
4. What is the ratio of the letter A to all the letters in the
word MATHEMATICS?
4. What is the ratio of the number of months in a year to months in a decade?
Assignment
1.
Solve the following problems. Express the ratio in simplest term.
There are 29 pink beads and 9 purple beads on Mica’s necklace.
What is the ratio of the number of pink beads to the number of purple beads?
2. 30 of the tables at MD’s Italian Restaurant are full and other 10 tables are
empty. What is the ratio of the number of empty tables to the number of full
tables?
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Department of Education
3. In the auditorium there are 8 red chairs and 42 blue chairs. What is the ratio of
Reflection
the number of blue chairs to the number of red chairs?
The Learners will write their personal insights and reflection based on what they have
learned from learned from the lesson
I understand that ________________________
I realize that ___________________________
Prepared by:
Noted
using the following prompts.