A POWERPOINT PRESENTATION IN MATHEMATICS 5

1. SOLVE THE PROBLEM USING GROMSA METHOD
Mang Tomas has 12.5 hectares of land.
He wants to divide it into 2.5 hectares
each for his sons. How much hectares of
land each sons must have?

2. If we were to play today, what would you choose, basketball or
volleyball?
VOTE VOTE

3. VISUALIZING RATIOS
Ratios are helpful tool for comparing things with each other in
Mathematics and in real-life situations so it is important to
know what they mean and how are they used. Ratios occur
frequently in daily life and help to simplify many of our
interactions by putting numbers into perspective like comparing
and choosing things like basketball or volleyball.

4. In visualizing ratios of two quantities, you need to
know that a “part” is a piece of something or one
thing in a particular group, and that a “whole”
represents all the combined pieces of something or
all the items belonging to a particular group. You
can represent a ratio in three forms, using the word
"is to", using a colon form “:" and in fraction form.
If necessary, you can also use the phrase form.

5. A ratio is a comparison of two quantities or given
sets of objects. It is also a pair of numbers that
compare two quantities in the same unit by division.
Write the ratio of the following:

6. STUDY THE TABLE BELOW
GRADE 5
BOYS
GRADE 5
GIRLS
The ratio that compares the boys and girls in Grade 5-Philippine
Eagele is 11:3

7. The expressions 11:3; 5:12, 7:12, 12:5 or 12:7 are examples of
ratio. A ratio is a comparison of two quantities. As we said
earlier, we have three or four ways (at times if needed) in writing
ratio. We have the “is to” form, colon form, fraction form and
‘phrase form’ if needed. For the colon form, we use the colon (:)
read as “is to” or “to” and/or for the fraction form, we use the
fraction bar (/) to separate two terms. In the ratio a:b, a and b are
the terms, a is the first term or antecedent and b is the second
term or consequent. In the example 5:12, 5 is the first term or
what we call antecedent, and 12 is the second term or what we
call consequent.

8. Bel glued suns and clouds on a piece of
paper.

9. QUESTIONS:
1.What is the ratio of the number of suns to
the number of clouds? __________
In words: four is to nine
In Ratio: 4 : 9
In fraction: 4/9

10. QUESTIONS:
2. What is the ratio of the number of shapes
to the number of clouds? __________
In words: thirteen is to nine
In Ratio: 13 : 9
In fraction: 13/9

11. QUESTIONS:
3. What is the ratio of the number of shapes
to the number of suns? __________
In words: thirteen is to four
In Ratio: 13 : 9
In fraction: 13/9

12. GROUP 1
Study the number of different shapes in the box and answer
the questions below.

13. QUESTIONS:
1. What is the ratio of the number of stars to the number of circles?
__________
2. What is the ratio of the number of triangles to the number of circles?
__________
3. What is the ratio of the number of pentagon to the number of stars?
__________
4. What is the ratio of the number of stars to the number of triangles?
__________
5. What is the ratio of the number of rectangles to the total number of
shapes? __________

14. GROUP 2- COUNT THEM
Let us use the things found in the classroom in giving the ratio. Present your answer
through singing or rapping.
1.What is the ratio of of chairs to tables? __________
2.What is the ratio of the CR to the number of pupils?
__________
3.What is the ratio of the number of electric fans to the
number of pupils? __________
4.What is the ratio of cabinets to windows? __________
5.What is the ratio of chairs to televisions? __________

15. GROUP 3 – SHOW IT
Illustrate the following using any object/ drawings that you like.
1. 7 : 8
2. 5:6
3. 8:12
4. 10:5
5. 1:1

16. IN WHAT SITUATIONS CAN WE APPLY RATIO IN
REAL- LIFE?
The concept can be applied in the following real-
life scenarios such as cooking. What 2 things can
you compare?
a. Ratio of ________________ to ____________
Why do we need to know the ratio of
things that we mention earlier?

17. HOW TO VISUALIZE THE RATIOS OF TWO QUANTITIES?
•In visualizing ratios of two quantities, you need to know that
a “part” is a piece of something or one thing in a particular
group, and that a “whole” represents all the combined
pieces of something or all the items belonging to a
particular group. You can represent a ratio in three forms,
using the word "is to", using a colon form “:" and in fraction
form. If necessary, you can also use the phrase form.

18. BY COUNTING 45 MINUTES FROM 8:10 TO 8:55.
• By computation
Subtracting 8:10 from 8:55
8:55 Think of 8:55 as 8 hours and 55 minutes
- 8:10 Think of 8:10 as 8 hours and 10 minutes
0:45