NAME ___________________________________

YEAR and SECTION ______________________

DATE ____________________________________

TEACHER________________________________

Task Sheet

FraDentageCONVERSION

A Learner-Centered Learning Environment Module

By:

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Jeck

Jill

Jeck and Jill are both 1st Year high school students at Chocolate Hills National High School in Bohol but they belong to different sections. Both of

them are living in a dormitory and every morning they climb up the hill to fetch a pail of water. One time they make a bet, whoever performs better in the

Semestral Examination in Basic Mathematics will be exempt from fetching water for the whole week.

On exam day, Jeck got 60 corrrect answers out of a total of 80 items while Jill got 65 out of 90 in

Basic Mathematics.

Who do you think got the better score, Jeck or Jill?

Jeck and Jill are both 1st Year high school students at Chocolate Hills National High School in Bohol but they belong to different sections. Both of

them are living in a dormitory and every morning they climb up the hill to fetch a pail of water. One time they make a bet, whoever performs better in the

Semestral Examination in Basic Mathematics will be exempt from fetching water for the whole week.

On exam day, Jeck got 60 corrrect answers out of a total of 80 items while Jill got 65 out of 90 in

Basic Mathematics.

Who do you think got the better score, Jeck or Jill?

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Who do you think won the bet and will be exempt from fetching water? Who performed

better in the Basic Mathematics Semestral Examination? Put a check mark before the correct answer or write your answer on the

space provided below if you think none of the choices below is the correct one.

M. Jeck, because she got 65 while Jill only got 60

A. Jill, because 60/80 is greater than 65/90

T. It cannot be determined because the total number of items are different.

H. Other __________________________________

__________________________________________

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Lets analyze this…

M. Jeck, because she got 65 while Jill only got 60.

Why do you think that a better performance should be based on the score?

__________________________

___________________________

T. Its hard to determine because the total number of items are different.

How would you change the given in order to find who performed better?

___________________________

___________________________

H. Other __________________________________________________________________________________________________________________________________________________________________

A. Jill, because 60/80 is greater than 65/90

Why do you say that 60/80 is greater than 65/90? ___________________________

___________________________

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In our everyday life, we encounter fractions, decimals and percents. To fully understand

them, you should be able to change one number form to another. CLICK ME to learn about converting fractions to percentages.

In our everyday life, we encounter fractions, decimals and percents. To fully understand

them, you should be able to change one number form to another. CLICK ME to learn about converting fractions to percentages.

Now that you have learned to convert fractions to percentages, let us do some exercises by clicking on the

book below

Now that you have learned to convert fractions to percentages, let us do some exercises by clicking on the

book below

Lesson 1

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Activity Sheet 1: Convert the following fractions to percents.

1. 8/25______________ Divide the

numerator by the denominator (decimal form)

______________ Multiply by 100 by moving the decimal point right two spaces. Add the percent symbol.

Method 1: Use divifraction as a percent.sion to write the

2. 5/6______________ Divide the

numerator by the denominator (decimal form)

______________ Multiply by 100 by moving the decimal point right two spaces. Add the percent symbol.

3. 1/20______________ Divide the

numerator by the denominator (decimal form)

______________ Multiply by 100 by moving the decimal point right two spaces. Add the percent symbol.

Method 2: Write an equivalent fraction with a denominator of

1001. 8/25______________ Write an equivalent

fraction with a denominator of 100

______________ Write the numerator with a percent

symbol2. 5/6______________ Write an equivalent

fraction with a denominator of 100

______________ Write the numerator with a percent

symbol3. 1/20______________ Write an equivalent

fraction with a denominator of 100

______________ Write the numerator with a percent

symbol1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

To learn about changing percentages to fractions CLICK ME.

To learn about changing percentages to fractions CLICK ME.

Now that you have learned to convert percentages to fractions, let us do some exercises by clicking on the

book below

Now that you have learned to convert percentages to fractions, let us do some exercises by clicking on the

book below

Lesson 2

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Activity Sheet 2: Convert the following percents to fractions.

1. 25%

_____________________ Remove the percentage sign then put the number over 100

_____________________ Simplify if possible

2. 76%

_____________________ Remove the percentage sign then put the number over 100

_____________________ Simplify if possible

3. 110%

_____________________ Remove the percentage sign then put the number over 100

_____________________ Simplify if possible

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To learn about changing decimals to percentages CLICK ME.

To learn about changing decimals to percentages CLICK ME.

Now that you have learned to convert decimals to percentages, let us do some exercises by clicking on the

book below

Now that you have learned to convert decimals to percentages, let us do some exercises by clicking on the

book below

Lesson 3

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Activity Sheet 3: Convert the following decimals to percentages.

1. 0.11

_____________________ Multiply the decimal by 100

_____________________ Add the % sign

2. 0.69

_____________________ Multiply the decimal by 100

_____________________ Add the % sign

3. 0.02

_____________________ Multiply the decimal by 100

_____________________ Add the % sign

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To learn about changing percentages to decimals CLICK ME.

To learn about changing percentages to decimals CLICK ME.

Now that you have learned to convert percentages to decimals, let us do some exercises by clicking on the

book below

Now that you have learned to convert percentages to decimals, let us do some exercises by clicking on the

book below

Lesson 4

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Activity Sheet 4: Convert the following percentages to decimals.

1. 9%Remove the percentage sign: _________ Then divide it by 100.

Final Answer: _____________

3. 31%Remove the percentage sign: _________Then divide it by100.

Final Answer: _____________

2. 17%Remove the percentage sign: _________Then divide it by 100

Final Answer: _____________

4. 45%Remove the percentage sign: _________ Then divide it by100.

Final Answer: _____________

5. 80%Remove the percentage sign: _________ Then divide it by 100.

Final Answer: ____________

6. 63%Remove the percentage sign: __________Then divide it by100.

Final Answer: _____________

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Fishing for math linksDive into these swimming holes to learn more about fractions, decimals, and percents or any other math topic.

• Meter Math resources• Ask Dr. Math• Saloon Snap - A BBC Education Game of

conversion (lots of fun)• Marin College, CA Mathematics Departm

ent – Converting repeating decimals to fractions

• Math.com• Decimal matching – Harcourt school

publishers site

Other helpful internet sites

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More Exercises…

In mathematics, you need to solve exercises on your own without the help of anyone to check if you really understood

the lesson. Click Hello Kitty for more exercises.

In mathematics, you need to solve exercises on your own without the help of anyone to check if you really understood

the lesson. Click Hello Kitty for more exercises.

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Going back to the original problem…

Jeck’s score is 60 out of 80 Jill’s score is 65 out of 90

Convert 60/80 to percent

______________________

______________________

Convert 65/90 to percent

___________________

___________________

So who won the bet?So who won the bet?

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Some Applications (Word Problems)

Answer the following completely. Write your answer on a whole sheet of paper.

1. Berto shot the basketball 28 times and made 17 baskets. What percent of his shots were baskets?

2. The Pink Panthers won 7 games, lost 9 games and tied 2 games. What percent of the games did they win?

3. Escape velocity is the speed necessary to escape the gravitational pull of a planet. The escape velocity of Earth is 11.3 kilometers per second, while the escape velocity for Saturn is 310% of that. What is the escape velocity of Saturn?

4. All the backpacks at Olympic Village are on sale at 30% off the marked price. Tricia bought a backpack that was marked Php 1 600.

a. How much did she save? 

b. How much did she spend?

5. World population increased from 2.3 billion in 1900 to 6.1 billion in 2000. What was the percent of increase?

Check your answers

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“Comparing all three” Game…

Can you match the fractions, decimals or percentages

pairs? Click the calculator to play the game and have fun.

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FINAL OUTPUT1. Choose two(2) group mates.2. As a group, identify items that we use in everyday life which quantities are expressed

in fractions, decimals or percentages. Enumerate 5 items for each number form then convert them to the other two number forms.

3. Use the following format in a short bond paper:

A. Items (in percentage) Decimal Fraction1.2.3.4.5.

B. Items (in decimal) Fraction Percentage1.2.3.4.5.

C. Items (in fraction form) Percentage Decimal1.2.3.4.5.

4. Attach a copy of your solution (again, in short bond paper). Please use the method learned in this module. 5. Refer to the rubric on the next slide for the basis of grading.

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RUBRICCriteria Excellent Good

Needs Improvement

Points Remarks

Items listed (10pts)

Complete and follows the given guidelines.(8-10)

Incomplete but follows the given guidelines. (5-7)

Incomplete and does not follow the given guidelines(1-4)

Solution(15pts)

The solution is step-by-step and the final answer is correct. (12-15)

The solution is not step-by-step but the final answer is correct.(8-12)

The solution is not step-by-step and the final answer is incorrect. (1-7)

Presentation (5pts)

Follows the given format, is neat and free of erasure.(4-5)

Follows the given format, is neat but with some erasures.(2-3)

The output looks messy and full of erasures. (1)

Demonstrated Knowledge

(5pts)

Shows complete understanding of the lesson, mathematical ideas, and processes.(4-5)

The output shows some understanding of the lesson.(2-3)

The output shows lack of understanding of the lesson.(1)

Total

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Things to Ponder

1.Why is it necessary to convert one number form to another? ____________________________________________________________________

2. Are fractions, decimals, and percentages useful in our everyday lives? Explain. ____________________________________________________________________

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END1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Practice Exercises…I. Write these fractions as percents.

1. 1/4 = _________

2. 1/10 = _________

3. 3/4 = _________

4. 1/25 = _________

5. 1/100 = _________

II. Convert the following percents to fractions.1. 35% = _________

2. 8% = _________

3. 72% = _________

4. 40% = _________

5. 64% = _________

III. Write these decimals as percents.1. 0.5 = _________

2. 0.3 = _________

3. 0.7 = _________

4. 0.01 = _________

5. 0.25 = _________

IV. Convert the following percents to decimals.

1. 3% = _________

2. 10% = _________

3. 24% = _________

4. 68% = _________

5. 90% = _________

Back to the module Answer Key

Practice Exercises (Answer Key)…I. Write these fractions as percents.

1. 1/4 = 25%

2. 1/10 = 10%

3. 3/4 = 75%

4. 1/25 = 4%

5. 1/100 = 1%

II. Convert the following percents to fractions. 1. 35% = 7/20

2. 8% = 2/25

3. 72% = 18/25

4. 40% = 2/5

5. 64% = 16/25

III. Write these decimals as percents.1. 0.5 = 50%

2. 0.3 = 30%

3. 0.7 = 70%

4. 0.01 = 1%

5. 0.25 = 25%

IV. Convert the following percents to decimal.

1. 3% = 0.03

2. 10% = 0.10 or 0.1

3. 24% = 0.24

4. 68% = 0.68

5. 90% = 0.90 or 0.9

Back to the module

Some Applications (Word Problems)

ANSWER KEY

1. 60.71%

2. 38.89%

3. 35.03 kilometers per second

4. a. Php 480

b. Php 1 120

5. 265.22%

Back to the module