MS Algebra A-REI-3 – Ch. 4.1 & 4.2 Properties of Inequality ALGEBRA SUPPORT Create Algebraic Inequalities and Apply Properties of Inequality to Solve Them

SUPPORT Class Learning Target Title: 4.1 & 4.2 Properties of Inequality Date: SUPPORT Class Learning Target By the end of the period, I will create algebraic inequalities and apply properties of inequality to solve them. I will demonstrate this by completing Four-Square Notes and by solving problems in a pair/group activity.

Home Work 1-2-3: 1) Class 4-Square Notes Put In Binder? 2) Section 4.2 Pg. 200 3) Section ______ TxtBk. Prob. #42-48 All Notes Copied on blank sheet Solved and Put in Binder? of paper in Binder? Table of Contents Date Description Date Due

Notes:

Write, solve and graph the solution of the inequality. HW # 42 You have $8 and want to buy some 39-cent stamps. Let s represent the possible number of stamps that you can buy.

Write, solve and graph the solution of the inequality. HW # 43 Your average running speed is 6.5 miles per hour. You plan to run at least 10 miles a day as part of a training program. Let T represent the amount of time you spend running (per day).

Write, solve and graph the solution of the inequality. HW # 44 You read 10 pages per hour. You need to read at least 115 pages of a book for your English class. Let T represent the amount of time you spend reading.

Write, solve and graph the solution of the inequality. HW # 45 Maria plans to save at least $100 each week. She earns $7.50 per hour working at her job. Let H represent the possible numbers of hours Maria should work each week.

Storm Check (Think, Write, Discuss, Report) When you use the division property of inequality, what happens when you divide by a negative number? When I divide an inequality by a negative number, ___________________________________________ __________________________________________.

Write, solve and graph the solution of the inequality. HW # 46 You have $90 to buy CDs for your friend’s birthday. The CDs cost $18 each. What inequality represents the possible number of CDs that you can buy?

Write, solve and graph the solution of the inequality. HW # 47 John applies for a job that requires the ability to type 40 words per minute. He practices typing on a keyboard for 5 minutes. The average number of words he types per minute must at least meet the job requirement. What are the possible numbers of words that John can type in 5 minutes in order to meet or exceed the job requirement?

HW # 48 The traveling distance between San Francisco and Los Angeles is about 385 miles. Write, solve and graph an inequality that represents the possible average speeds s (in miles per hour) needed to drive from San Francisco to Los Angeles in less than 7 hours.

Vocabulary Addition Property of Inequality (P.O.I.) Subtraction P.O.I. Multiplication P.O.I. Division P.O.I. by a Positive(+) Number / by a Negative (-) Number

Vocabulary Acquisition Friendly Definition Sketch Wordwork Sentence DAY 2 1. Review word Friendly Definition Physical Representation 2. Draw a sketch DAY 1 Use Visuals Introduce the word Friendly Definition Physical Representation Use Cognates Write friendly definition Word List Vocabulary Acquisition DAY 3 and/or DAY 4 1. Review the word Friendly Definition Physical Representation 2. Show how the word works Synonyms/antonym Word Problems Related words/phrases Example/non-example DAY 5 1. Review the word Friendly definition Physical Representation 3. Write a sentence at least 2 rich words (1 action) correct spelling correct punctuation correct subject/predicate agreement clear and clean writing

Title: 4.1 & 4.2 Properties of Inequality Date: Learning Target By the end of the period, I will create algebraic inequalities and apply properties of inequality to solve them. I will demonstrate this by completing Four-Square Notes and by solving problems in a pair/group activity.

Home Work 1-2-3: 1) Class 4-Square Notes Put In Binder? 2) Section 4.2 Pg. 200 3) Section ______ TxtBk. Prob. #42-48 All Notes Copied on blank sheet Solved and Put in Binder? of paper in Binder? Table of Contents Date Description Date Due

Ticket OUT. PILOTING A student pilot plans to spend 80 hours on flight training to earn a private license. The student has saved $6000 for training. What are the possible hourly rates that the student can afford to pay for training? Turn to your partner and share your answer. Please use correct answer. Partner B, please share what Partner A told you.

Ticket OUT. PILOTING A student pilot plans to spend 80 hours on flight training to earn a private license. The student has saved $6000 for training. What are the possible hourly rates that the student can afford to pay for training? Write inequality. 6000 80 • r ≤ Turn to your partner and share your answer. Please use correct answer. Partner B, please share what Partner A told you. 80 80 Divide each side by 80. 75 r ≤ Simplify. ANSWER The student can afford to pay at most $75 per hour for training.