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Example problem #1. A couch cost 5 times as much as a rocking chair.Altogether they cost $702. How much will the rocking chair costThe algebraic method involves using x to represent therocking chair. The pictorial representation shows therocking chair with respect to the couch (y) which is fivetimes (5x) more in price.yx702• Using Comparison model, we can form an equation.• y =5x and 702 = x + y• Therefore, x + 5x = 702• x =$11711/19/2011
Example Problem. #2. An inspector found 30defective bolts during an inspection, it is 0.25% ofthe total number of bolts inspected, how many boltswere inspected.Let total number of bolts inspected represent 100%.However, we know that 30 inspected bolts were defectiverepresenting 0.25% of defective bolts. We need to find howxmany bolts were inspected.Here a bar is drawn to representthe data given.• 0.25% represent 30 bolts• 100% will represent x bolts.• So we can find x• Therefore x = 100/0.25 x 30• x=120,000 bolts11/19/20110%300.25%100%
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 34 and 35: Example problem #2. A store gives 1
Page 36 and 37: Part-Whole Model in Problem solving
Page 38 and 39: Comparison Model cont’d• The pi
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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