�Visualizes percent and its relationship to fractions, ratios, and decimal numbers using models. ��

Third Grading Week I

Using flash cards. Express each of the following in percent

5 : 100

62 : 100

83 : 100

43/100

Review meaning of percent� �

85% of the plants were watered

How many percent were not watered?

Pupils having the strips with 10 division

and 5 one division each to represent 15% as the answer will reach in front

showing the answer.

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Who among you have baby brother and sisters who still take milk from bottles?

Do you know how to prepare their milk?

How many ounces of water do you use?

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How many scoops of milk do you put?

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Pupils may say for every 4 ounces of water they put 2 scoop of milk before

shaking the bottle.)

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Why is it necessary to follow the instruction in preparing milk for your younger

brother/sister?

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Survival Game:

1. Let 5 boys and 5 girls stand in front of the class forming a circle. While the music is

being played the participants move around.

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2. When the music stops the teacher will say “The boat is sinking group yourselves into

2.”

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3. The group continues till the described players necessary to form the ratio is achieved.

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Discuss the following to the pupils;

For instance, the first group there are 3 girls and 1 boy left.

Then the ratio of boys to girls is 1:3

The ratio of girls to boys is 3:1

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If we are to write the ratio 1:3in fraction which will be the numerator? the denominator?�

1:3

1/3

If we are to get how many percent of the pupils are boys, in relation to the group, divide

The numerator by denominator

1.00

9

10

9

1

3

.33 or 33%

There are 33% in relation to the girls in the group.

In decimal, change percent to fraction with denominator of 100. Then express the fraction

as a decimal.

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33/100=0.33

Or simply drop the % symbol, Then move the decimal point 2 places to the left.

33% = .33 = 0.33

A. Using pictures the pupils will give the ratio of the number shaded parts to the unshaded� part. Then change them to fractions, decimal and percent.�

Ratio _______ Fraction ______ Decimal _______ Percent ________

GROUP ACTIVITY

Ratio:___Fraction___Decimal____Percent___

Group 1

Group 2

Group 3

Group 4

Group 5

Let the group present their output and answer the questions one at a time

After all the

group presented, ask, How did you find the activity? How can you change ratio to fraction?

to decimal? To percent?

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• Say: Ratio is a comparison between two or more quantities. It can also be expressed as
• fraction, the first number being the denominator. Through ratios and fractions we
• can get the percent equivalent by dividing the numerator by the denominator. The
• result is a decimal but move the decimal point two places the right and affix the

. Percent sign.

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Summarizing the Lesson:

• What is the relationship of ratios to fractions? topercent?
• If your data is written in ratio form, can you write it in fraction form? How can we get
• percent equivalent of a ratio and a fraction?
•  

• Ratio is a comparison between two or more quantities. It can also be expressed as fraction, the first number being the denominator. Through ratios and fractions we can get the percent equivalent by dividing the numerator by the denominator. The result is a decimal but move the decimal point two places the right and affix the percent sign.

Assessment :� Write the name for each shaded part as fraction, ratio, percent and decimal.��

1 2 3

. Home Activity�

Illustrate each and tell what the fraction ratio, percent and decimal of the set in the given number.

1. 2 in a set of 8 mangoes

2. 3 in a set of 6 watermelons

3. 1 in a set of 5 oranges

4. 4 in a set of 10 guavas

5. 6 in a set of 12 pineapples.

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