This document provides examples for teaching students how to translate phrases and sentences into algebraic expressions and equations. It includes sample phrases and sentences with the corresponding algebraic translations. Students practice translating phrases such as "twelve more than a number" to algebraic expressions like "12+x". The document also provides examples of evaluating algebraic expressions and translating expressions back to verbal phrases.
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MATH 6 PPT Q3 W6 - Real-Life Verbal Expressions And Equations Into Letters Or Symbols, Variable In An Algebraic Expression And Equation,.pptx
2. Objectives:
Gives the translation of real-life verbal
expressions and equations into letters or
symbols and vice versa. M6AL-IIIe-16
Defines a variable in an algebraic
expression and equation. M6AL-IIIe-17
Represents quantities in real-life
situations using algebraic expressions
and equations.
M6AL-IIIe-18
3. Drill:
1.The cafeteria bought lots of frozen pizzas to
serve. If you know the total amount of money
they spent and how many pizzas they bought,
how could you figure out the cost of 1 pizza?
Why do you believe that? What is the action
of this operation?
2.)Pete bought some candy and gave
some of the pieces to his best
friend, Hal. How could you figure
out how many pieces Pete has left?
Why do you believe this? What is
4. 2.)Pete bought some candy and gave some of
the pieces to his best friend, Hal. How could
you figure out how many pieces Pete has left?
Why do you believe this? What is the action
of the operation?
3. Bob and Tyler do not have enough money
to buy a box of donuts, but they have the
exact amount needed if they combine their
money. How would you find the cost of a box
of donuts? What is the action of this
operation?
5. 4.Macy wants to buy each of her
classmates a Coke. How would you
figure out the cost? What is the action
of this operation?
6. 4.Macy wants to buy each of her
classmates a Coke. How would you
figure out the cost? What is the action
of this operation?
7. B. Establishing a purpose
What expression describes President
Rodrigo Duterte?
If we use expressions to describe our
President, we also use expressions in
Mathematics, to describe
relationships between numbers and
the operations being used.
8. C. Presenting examples/ instances
Define an expression for students
Variable is a placeholder
. "Some number" is a phrase that indicates a
variable is needed
a.Example: Given "some number increased by
5", ask students, "What action is happening
in this phrase?" (Answer: We are making
larger, joining to, adding to). Then ask, "What
operation indicates this action?" (Answer:
Addition) x + 5
9. Group Activity:
Translate each phrase or sentence into a
mathematical expression or equation.
1.Twelve more than a number.
SOLUTION: 12+x
2.Eight minus a number.
SOLUTION: 8x
3.An unknown quantity less fourteen.
SOLUTION: x14
4.Six times a number is fifty-four.
SOLUTION: 6x=54
5.Two ninths of a number is eleven.
SOLUTION: 2/9x=11
10. 6.Three more than seven times a
number is nine more than five times the
number.
SOLUTION
3+7x=9+5x
7.Twice a number less eight is equal to
one more than three times the number.
SOLUTION:
2x8=3x+1 or 2x8=1+3x
11. E. Discussing new concepts
Discuss examples 4-5 on page 228-229 of
Mathletes txbk.
Lulu comes from school with a
heavy heart because of homework.
Her elder brother gives her a helping
hand. He has seen the following:
13. F. Developing Mastery
Group Activity:
Translate in algebraic symbols.
1.)twice a number a divided by three Ans:2a / 3
2.)five times a number x minus four Ans:5x - 4
3.)Thrice the sum of a number x and six Ans:3 (x +
6)
4.) A number x is divided by two added to seven
Ans:7 + x / 2
14. Translate algebraic symbols into
mathematical statement.
5.)5x + 2y
the product of five X added to the
product of two and y
the sum of five times x and two
times y
five times x increased by twice y
twice and more than five times x
15. G. Finding practical application of
concepts
Pair-share:
1. Translate into verbal phrases.
a.)3x - 4
b.)n + 8
c.)2 / x + y
d.)5y - 2
e.)2x + 3
16. 2. Translate in algebraic symbols.
a.eight times a number x increased by
three.
b.five times a number n added to six.
c.fifteen added to the quotient of a
number y and two.
d.twenty four multiplied by the sum
of x and y.
e.the sum of the number n and seven
multiplied by two.
18. Answer Math Challenge on page 237
1. Aldrin bought 5 pencils and 7 notebooks.
A notebook costs P10.80 more than a
pencil. Write an algebraic equation
showing that the total amount of yje
school supplies bought is P210.00
2. Art is twice as old as Ken. Ten years ago,
he was four times as old as Ken. Write
the algebraic equation for their ages ten
years ago.
19. 3) Vincents weight is 6 kilograms
more than Ezekiels weight.
Daniels weight is 3 kilograms
less than Ezekiels weight. Write
an algebraic equation for the
weight of the three boys having
an average weight of 63
kilograms.