ࡱ> _ .bjbj |>\>\>$s 66666JJJ8TDJ]0000*HT,e]g]g]g]g]g]g]$_Hb]6"*]6600]$$$6060e]$e]$$2cXs[0@d! WY.Q]]0]%ZNb b\s[s[&b6[v>T$D]]!]b > : Interest, Depreciation, and Amortization HYPERLINK "http://peer.tamu.edu/DLC/NSF_Resources.asp?ID=1705&type=browse&num=10&terms=&content=allcontent&subject=allsubjects&grade=allgrades&query=query&hl=no&count=537&number=6&view=yes"Download all Associated Files for this lesson from our Website Summary: This lesson gives a brief overview on the concepts of simple interest, compound interest, and depreciation, as well as application of these concepts. Keywords: Amortization, Compound Interest, Continuous Compound Interest, Credit, Depreciation, Double-Declining Balance Depreciation, Interest Rate, Principal, Salvage Value, Simple Interest, Simple Straight-Line Depreciation, Units of Production Depreciation, Useful Life Subject TEKS: 111.36. Mathematical Models with Applications (6) The student uses algebraic formulas, graphs, and amortization models to solve problems involving credit. The student is expected to: (A) analyze methods of payment available in retail purchasing and compare relative advantages and disadvantages of each option; (B) use amortization models to investigate home financing and compare buying and renting a home; and (C) use amortization models to investigate automobile financing and compare buying and leasing a vehicle. (7) The student uses algebraic formulas, numerical techniques, and graphs to solve problems related to financial planning. The student is expected to: (A) analyze types of savings options involving simple and compound interest and compare relative advantages of these options Grade Level: 9th 12th Learning Objectives: The learner will: Describe the most common types of interest accumulation, depreciation methods, and basic concepts of amortization Apply these concepts to real life situations Be able to solve problems involving interest calculation, straight-line depreciation, and amortization with at least 90% accuracy. Time Required: PowerPoint presentation: 1-2 class period(s) Make your own amortization table: 1 class period Interest and Depreciation student activity: 2 class periods Total Time: ~3-5 class periods Materials: Resource to teach PowerPoint presentation Computer with Microsoft Excel or similar program Calculator Background/Concepts for Teachers: Teachers should have a basic idea of the three kinds of interest discussed in the lesson, a general idea of depreciation and its application, and a basic understanding of loan amortization. Teachers should review the PowerPoint before teaching to determine whether further research will be needed to teach students appropriately. Vocabulary / Definitions: Amortization - The paying off of debt with a fixed repayment schedule in regular installments over a period of time Continuous Compound Interest - used to determine the interest earned on an account that is constantly compounded, essentially leading to an infinite amount of compounding periods. Credit - the provision of money, goods, or services with the expectation of future payment Depreciation - a reduction in the value of an asset with the passage of time, due in particular to wear and tear. Double-Declining Balance Depreciation - an accelerated form of depreciation under which the vast majority of the depreciation associated with a fixed asset is recognized during the first few years of its useful life Interest Rate - the proportion of a loan that is charged as interest to the borrower, typically expressed as an annual percentage of the loan outstanding Principal - a sum of money that is placed to earn interest, is owed as a debt, or is used as a fund Salvage Value - (scrap value) what you can get out of your asset at the end of its useful life Simple Compound Interest - interest calculated on the initial principal and also on the accumulated interest of previous periods of a deposit or loan Simple Interest a basic formula for calculating how much interest to apply to a principal balance Straight-Line Depreciation - charges cost evenly throughout the useful life of a fixed asset Units of Production Depreciation - depreciation is charged according to the actual usage of the asset Useful Life - the estimated amount of time the asset is expected to be used Lesson Introduction/Motivation: Have students consider an asset they would like to acquire. Ask them questions about how they think they would go about purchasing an asset to assess their preliminary knowledge of interest, depreciation, and amortization. Presentation/Explanation: The PowerPoint presentation included in this lesson plan will briefly explain simple interest, simple compound interest, and continuous compound interest; straight-line depreciation, double-declining balance depreciation, and units of production depreciation; and amortization. The PowerPoint will define these concepts, write out and explain the formulas for calculating each concept, and will assess the students knowledge of the subjects after each of the categories have concluded. This PowerPoint may need to be further explained if students have no background in the subjects. Activity/Application: A few activities are included with this lesson plan. Build your own amortization table this activity gives a step-by-step lesson on how to create a basic amortization table in Microsoft Excel. This is an extremely useful tool to use when considering different loan options and different purchase options, and can be used in determining amortization of anything from a $100.00 loan to a mortgage payment on a house Interest and Depreciation Activity this activity gives students a basic understanding of what happens when a loan is taken out when purchasing an asset. Students will consider an asset for purchase, find the price of that asset, and use an amortization table to visualize the way payments are determined for each period of a loan. Students will then find the depreciation on this asset. This activity also includes assessment questions of the activity, as well as interest and depreciation practice questions at the end of the activity. Loan Amortization Table Template this is a basic template found using Google for use if there is not enough time for students to make their own amortization tables. This table or any other table is fine to use for the activity above. Example activity of interest and depreciation This goes with the second activity listed above, and basically goes through the steps for the student activity to show students what is required of them for the activity. Teacher Activity Interest and Depreciation answer key for worksheet for Interest and Depreciation activity, as well as an explanation of the student activity How to Make Your Own Amortization Table Example The table used to create the Build Your Own Amortization Table activity; included for reference Assessment/Evaluation: Worksheet included on Interest and Depreciation Activity Lesson Closure: Go through the pros and cons of using credit to attain new assets. Have students make a list of a few pros and cons each to present to the class. They should be able to come up with at least two or three pros and cons. Lesson Extensions: This is a very important concept that students need to understand not only for testing purposes, but for life. It is encouraged that this lesson is taught thoroughly and is understood by all students, because they will need to understand this later in life. There are great resources online for further learning and practice of all three concepts discussed in this lesson. Resources: POWERPOINT RESOURCES http://faculty.chas.uni.edu/~campbell/mdm/simp.html http://math2.org/math/general/interest.htm http://accounting-simplified.com/financial/fixed-assets/depreciation-methods/straight-line.html http://www.accountingtools.com/double-declining-balance-depre http://accountingexplained.com/financial/non-current-assets/units-production-depreciation http://www.mathwarehouse.com/copyright.php http://www.investopedia.com/terms/a/amortization.asp http://www.myamortizationchart.com/articles/how-is-an-amortization-schedule-calculated/ WORKSHEET RESOURCES http://www.mathwarehouse.com/copyright.php http://www.maranausd.org/DocumentCenter/View/37902 References: Campbell. "Simple Interest."Simple Interest. University of Northern Iowa CHAS, 1 May 2003. Web. 6 Oct. 2015. Manura, David. "Interest and Exponential Growth."Math2.org. Web Math Collaboration, 2005. Web. 6 Oct. 2015. "Straight Line Depreciation Method."Straight Line Depreciation Method. Www.accounting-simplified.com, 2011. Web. 6 Oct. 2015. Bragg, Steven. "Double Declining Balance Depreciation."Double Declining Balance Depreciation - AccountingTools. AccountingTools, 2015. Web. 6 Oct. 2015. Jan, Irfanullah. "Units of Production Method of Depreciation."Accounting Explained. AccountingExplained.com, 2013. Web. 6 Oct. 2015. "Continuously Compounded Interest."Math Warehouse. Www.mathwarehouse.com, 2015. Web. 6 Oct. 2015. "Amortization."Investopedia. Investopedia, LLC., 18 Nov. 2003. Web. 6 Oct. 2015. "How Is an Amortization Schedule Calculated?"How Is an Amortization Schedule Calculated?MyAmortizationChart.com, 2015. Web. 6 Oct. 2015. 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