Writing Inequality

AGENDA

DO NOW: Match Inequality with words

ACTIVATOR: Meaning of handsign

DISCUSSION: Writing Inequalities

WE DO: 3 Practice Questions

ChallengeQuestion

CLOSURE: Error Analysis
INDEPENDENT WORK: 6 Problems with exra

DO NOW:

I

can

create and solve inequalities in one variable

that model real world problems involving linear relationships

IOT interpret the solutions and determine whether they are reasonable.

STORY OF THE HANDSIGN

Do you ever have a picture using

this handsign?

Did you know that it has a

mathematical meaning behind it?

A

B

Understanding keywords can help us

write the equation or inequality.

greater than
no more than

at least

higher than

less than
maximum
minimum
lower than

greater than or equal to

less than or equal to

at most

EXAMPLE 1:

B

EXAMPLE 2:

B

In order to be a B Honor roll, the average of grades should be at 80-89. Zee wants
to check if he qualifies with his current grades.
Arts: 92
Math: 75
Science: 78
English: 83

EXAMPLE 3:

WE DO:

A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile.

If Erica has at most $10 to spend on the cab ride,

how far could she travel?

The South Carolina government is now proposing a new college scholarship for
students who achieve an average of at least 90% on four state tests. John would
like to go to college for free and just needs to take the state test for History next
year. Here are his state test results:
Algebra 1: 92
Biology: 84
English : 98
What is the minimum grade he needs to achieve on the History test for him to
qualify for the scholarship?

YOU TRY: (CHALLENGE)

CLOSURE:

FI

NI

S

H

Y

ou

r

W

or

ks

he

et

INDEPENDENT WORK: