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JeneanneHultzer_TeachMeet_Excel-in-Maths-Lit

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Jeneanne Hultzer gave this presentation entitled Excel in Maths Literacy at the Microsoft TeachMeet in Johannesburg, October 2011

Jeneanne Hultzer gave this presentation entitled Excel in Maths Literacy at the Microsoft TeachMeet in Johannesburg, October 2011


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  • 1. Excel in Maths Lit Jeneanne Hultzer Brescia House School• Break – even analysis with Grade 11’s• Doesn’t take as long to plot the graphs and so I can spend more time discussing and looking at changes: What if she charges more? What if her fixed costs increase? Etc.• I’ve learnt to put Excel links into my whiteboard slides so that I can set up tables and graphs and then just look at the effects of the change.• Need access to computers for the whole class – they don’t remember if they just watch – they must do!
  • 2. You buy a small franchise that sells iPods at your localflea market on Sundays. The franchise cost you R1000per month up front and you pay R50 per Sunday totrade at the flea market. Each iPod cost you R800 andyou plan to sell them for R1200 each.a) Use this information to set up a break-even analysis for one month of trading (4 Sundays). Find the break-even point and discuss what it means business wise. (11)b) You expect to sell at least 2 iPods each Sunday. If these expectations are met, what would your profit be? (3)c) If you sold 15 iPods in your first month of trading, what would your profit be? (3)
  • 3. d) Two months later, costs have risen steeplydue to an increase in inflation. The cost of yourfranchise has now been increased to R4000 permonth, and each iPod will cost you R1000. Younow need to pay R125 per Sunday to trade atthe flea market. You know that yourcompetitors intend to sell similar iPods forR1490 each, so you decide to charge R1450 periPod. Is this still a valid business proposition?Show the analysis on a new graph and explainyour answer. (13) [30]