Percent math 6

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LESSON PLAN IN MATH 6

Objectives: 1. Find the percentage when the

rate and rate and base are given

- Write the data for rate and

base using Techan’s triangle - Strive for one’s best

content: Skill: - Find the percentage when the rate and base are given Reference: - BEC PELC II 3.2.1 and 3.1 Value: - Striving for one’s best/ perseverance

preparatory activities: 1. Mental Computation Drill on changing percent to ratio, decimal to percent, fraction to percent, and vice versa

percent to ratio:

6% =

decimal to percent:

1.2 =

Fraction to percent:

3/4 =

Percent to decimal:

25% =

ratio to percent:

1:2 =

Complete the table:

DECIMAL FRACTION

RATIO PERCENT

2.5

2/5

1:5

65%

preparatory activities: 2.

What’s your target score in a 20-item test? What passing

grade is it?(75%, 80%, 90% or

100%)

developmental activities: 1. Pablo listens very well to the

teacher during the discussion of the lesson. When they were given a five item test, his grade was 80%. How many correct answers did Pablo get?

Answer the following questions: 1. Who listens very well to the

teacher? 2. How many items was their

test? 3. What was his grade in the test?

Answer the following questions: 4. If you were Pablo will you also

be listening intently to the teacher? Why?

5. Do you think you can get a higher grade than Pablo? Why do you

think so?

Discussion: 1. What are the given data?

( Lead the pupils to write the given data inside the

Techan’s triangle) 2. What is the equation for the problem?

translating word

expression Into Mathematical expression or equation What is 90% of a 50-item test? or 90% of a 50-item is what?

what - can be replaced by any letter; it is the missing

number is - can be replaced by equal

sign of – means multiplication as in

¼ of 20 means ¼ X 20

What is 90% of 50?

so N = 90% X 50 N = 0.9 X 50

N = 45

90% of a 50-item is what? so 90% X 50 = N

0.9 X 50 = N 45 = N

practice exercise: Solve for the percentage.

a. 36% of 95 is N. b. 48% of 290 is what number? c. N is 20% of 8? d. What is 20% of 8?

e. 60% of 80 is what?

generalization: How do you find the percentage

when the rate and base are given?

P B RTechan’s Triangle

generalization: Multiply the base and the rate

to get the percentage of a number.

P B RTechan’s Triangle

application: a. There are 40 pupils in a

class. Seventy-five percent of them are present? How many are absent?

b. Rhoda’s allowance for the day is P250. She spends 80% of it and saves the rest. How much does she spend? How much does she save?

evaluation:

Answer the following: 1. What is 25% of 4?

2. N is 50% of 2 3. 200% of 3 is what

number?

4. 75% of12 is ___ 5. 60% of 30 is N

evaluation:

Answer the following: 6. 30% of 600 is what number?

7. 230% of 90 is N 8. 150% of P400 is ____

9. ___ is 10% of P1,000,000

10. What is 1% of P1,000?

ANSWERS:

1. 1 6. 180 2. 1 7. 207

3. 6 8. 600 4. 9 9. 100,000 5. 18 10. 10

assignment:

Complete the table. BASE RATE PERCENTAG

E

30 10%50 60%60 30%

180 150%200 75%

Thanks and God bless you all!See you next

time and don’t forget to study your lessons.

Do your homework,

too.