Week 3: Warm ups

CCGPS Coordinate AlgebraWeek 3: Warm ups Warm-up 8/27/2012: Adding and Subtracting IntegersSometimes mathematicians are not interested in actual numbers, but simply whether or not a number is positive. A good example is the stockholder who is a concerned only with whether the value of his or her stocks go up.

Problem: Describe each situation below as positive, negative, zero or cannot be determined.The sum of two positive integers.The difference of two positive numbersThe sum of a number and its oppositeThe sum of a negative number and zeroThe difference of two negative numbersMath Starters 5-29, page 1972Key Words in inequalities word problemsIs not greater thanIs more than below MinimumNot more thanIs smaller thanAboveIs less thanAt leastAt mostIs greater thanIs not less thanMaximumIs larger thanNot smaller than

List below are key words or phrases that are often found in inequality word problems. Match the key words or phrase with the appropriate inequality symbol. , , , or . Then make a foldable using the key words and symbols:

Answer key:

Warm up 8/28/2012:Solving Two-Step EquationsTwo step equations are equations that must be solved by using two transformations. If each side of an equation is in simplest form, then the following steps should be followed: Add or subtract the same number to each side of the equation.Multiply or divide each side of the equation by the same non-zero number.Problem: Of the four problems listed below, which have the same solution?3a+ 4 = -22a+14 = 011 = 7 2a -3a+18 = 39 Math Starters 5-50, page 205Warm up 8/29/2012: The Muddiest pointOn a post-it, students will individually identify their muddiest point (any standard or concept he or she did not understand) of the Caras Candles and The Yo-Yo Problem.

Group Assessment 1st BlockStudents will participate in a group assessment. (Please see below for groups)Rules: 1. You may only talk to your group members to complete the assessment.2. All members names must be on the assessment in order to receive credit.3. The test will be timed. (Please work SMART not HARD).4. Each group will submit 1 test.5. If caught cheating the test will be omitted for the entire group. That means you will receive a ZERO!6. All members must participate. ChazJoseTerrineckiaJordenMamadouMauriceDesireeTerrenceShateraChristianQuiannaDeVonteVictoriaCoreyMalikJoshuaShonterriaTamaraNadabShiniquaAiyanahVermikaTyrinTakeishaAlonnaShontaviousJaquaviusChristopherSavonTrevelyanKevinJonathanJosephWyteriaMarcusVerlonNiasiaTatiannaAnthonyGroup Assessment 3rd BlockStudents will participate in a group assessment. (Please see below for groups)Rules: 1. You may only talk to your group members to complete the assessment.2. All members names must be on the assessment in order to receive credit.3. The test will be timed. (Please work SMART not HARD).4. Each group will submit 1 test.5. If caught cheating the test will be omitted for the entire group. That means you will receive a ZERO!6. All members must participate. CierraMalik JasmineCelesteGaryValenciaMikeriaDeonteJochuwaTaylorDarielleMarcus G.TraneciaPhaderianRodariusRickiAmberRaunetriJoshua JMariahBriannaEddieChristopher H.ShanpporiaBariSariahDavidDelvanteMiracleShaneseMarcus B.CourtlandTyioneMyaRodnellDejaunAndweleQuintrezGroup Assessment 4th BlockStudents will participate in a group assessment. (Please see below for groups)Rules: 1. You may only talk to your group members to complete the assessment.2. All members names must be on the assessment in order to receive credit.3. The test will be timed. (Please work SMART not HARD).4. Each group will submit 1 test.5. If caught cheating the test will be omitted for the entire group. That means you will receive a ZERO!6. All members must participate. KarlTamikaMikeGabbyDeMarcoQuindariusRobertMoeshaNickShataviaNiquiraJamesShomariTayinanaGarrettJayanniKiannaIneziaRonaldCayelaKhalilAlvinChristopherLorenReginald

NetoJustin H.CurtoryWarm up 8/30/2012

Word Problem Example:

Mya wants to buy Hot Fries, a Snickers bar, and a Fanta at the store. After school, she goes home to get money, but she realizes her little brother took her $20 bill and left her only $5. Mya angrily walks to the store and checks the prices of the snacks. The Hot Fries cost $1.95; the Snickers costs $2.50; and the Fanta costs $1.50. When she gets to the register, the cashier tells her the Hot Fries are on promotion for 50% off before tax, and the tax is 7%. Can Mya buy all of these snacks? August 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Example:

Mya wants to buy Hot Fries, a Snickers bar, and a Fanta at the store. After school, she goes home to get money, but she realizes her little brother took her $20 bill and left her only $5. Mya angrily walks to the store and checks the prices of the snacks. The Hot Fries cost $1.95; the Snickers costs $2.50; and the Fanta costs $1.50. When she gets to the register, the cashier tells her the Hot Fries are on promotion for 50% off before tax, and the tax is 7%. Can Mya buy all of these snacks? August 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Example:

Left $5Hot Fries $1.95; Snickers $2.50; Fanta $1.50Hot Fries are 50% off before tax, and the tax is 7%. Can Mya buy all of these snacks? Create an inequality to represent this situation.August 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Example:

HF = Hot FriesS = SnickersF = FantaAugust 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Example:

Left $5HF = $1.95; S = $2.50; F = $1.50Hot Fries are 50% off before tax, and the tax is 7%. Can Mya buy all of these snacks? August 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Example:

White Board ExplanationNo, she cannot buy all the snacks!August 30, 2012OpeningWord Problem Strategies

Cross out information that not relevantExtract import given numbersAssign variablesCircle key wordsRestate the question in your own wordsSolveCheck your work does your answer make sense?August 30, 2012OpeningWord Problem Strategies

Check your work does your answer make sense?

How can I tell? What are the units?August 30, 2012OpeningPart 1: The Yo-Yo Problem

August 30, 2012Work Period

Expectations:*Math-accountable talk*Working in your groups*Seated and engaged*Raise your hand for help

Part 1: The Yo-Yo ProblemReflection/Discussion:Give an example of a time when the answer would not make sense in this problem. How can you check your equation?August 30, 2012ClosingHomework: Create 2 word problems and solve them. Show all your work.*Dont reuse my example with new numbers.*Warm up 8/31/2012

Solving Two-Step EquationsCreating algebra problems is sometimes more difficult than solving them.

Problem: Write a two-step equation whose solution is x = -6. Then write an explanation of how you created the problem.Math Starters 5-51, page 205