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Example problem #2. A store gives 10% discount to allstudents off the original cost of any item. If an additional 15%is taken off the discounted price, how much is the originalprice if a student purchases an item for $306?Solution:1 st 10% store discount represent 90% of original price .(100% – 10% = 90%)2 nd Discount price represent 85% of the first discount price of 90% = 0.85 x0.90 = 0.765Therefore the final price represent 76.5% of the original price.We need to find the unit price per percent.1% represent $306/.765 = $4.00Original price (100%) = 4 x 100= $400.00Here a pictorial bar model is used to represent the whole, (original price ofthe item). The whole is 100%.Original Price?$3061 unit $4.0076.5% 100%1/1/201290%11/19/2011
Model Method and AlgebraSingapore Model Method also offers alternative approach tosolving algebra word problems. Students mostly encounterdifficulty manipulating algebraic skills necessary in solvingword problems; therefore the need to develop newstrategies is more urgent. Here we will explain how we usethe Model method in solving problems in Algebra courses atMedgar Evers College, CUNY. We will explore the use of theUnitary model and the Comparison model to:• Process given information in the problem.• Identify known and unknown quantities• Understand relationships between those quantities.• Increase students reasoning and thinking skills.1/1/201211/19/2011
Page 1 and 2: Presenters:Dr. Umesh NagarkatteLavo
Page 3 and 4: Background -• Singapore Mathemati
Page 7: 11/19/2011Mathematics Framework•
Page 12: AttitudesAttitudes here refers to t
Page 16: Comparison ModelAddition and Subtra
Page 24 and 25: Example Problem #1-FractionPart-Who
Page 26 and 27: Example #1-RatioComparison Method
Page 28 and 29: Example #3-RatioPart-Whole Method
Page 30 and 31: Example #2- PercentagesPart- Whole
Page 32 and 33: Model Method & ProblemSolving• Mo
Page 36 and 37: Part-Whole Model in Problem solving
Page 38 and 39: Comparison Model cont’d• The pi
Page 40 and 41: Example problem #1. A couch cost 5
Page 42 and 43: Sample Question #3 High school grad
Page 44 and 45: Example Problem #4Question: Smith,
Page 46 and 47: Conclusion cont’dWordproblemProbl
Page 48 and 49: Conclusion cont’d• We conscious
Page 50: Conclusion cont’d• Moreover, th

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