Activity 3: Check out the computer (Maths)
1. PLAY the video segment
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In the video, the three flatmates discuss the computer offer they see on TV.
Nik has a problem with Sophie buying a computer over 60 months. |
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Sophie wanted to buy the computer that was advertised on TV. The whole deal offered a 'fast' 380 MHz PC, a CD-ROM drive, a modem and a network card. The offer also included free internet access. Sophie was a little worried that she would never be able to afford it.
Sophie and Tye went to the shop to check it out. The cash price for the computer was $3198. As Sophie didn't have cash, the shop offered her terms of 60 monthly payments of $79.95. They also asked her to pay 10% of the cost of the computer as a deposit.
2. ANSWER the following questions:
a. How much is the deposit that Sophie will have to pay?
b. How long is 60 months in years?
c. How much will Sophie pay altogether?
d. What is the total amount of interest charged?
Sophie and Tye decided to shop around. They found two other computer offers:
- Max Baggi Computers offered a PC, CD-ROM drive, a modem and a printer for $3800
- Timetravel Computers offered a PC, a printer, a CD-ROM drive for $150 per month over 24 months with no deposit required.
Which computer deal is cheaper?
3. LIST Nik's concerns about Sophie buying a computer over 60 months.
4. DISCUSS What's your opinion? Do you agree with Nik?
This activity can be found in the NSW Money Stuff Teacher resource book – Mathematics page 20 .
Explore additional learning activities (which include extension and revision tasks) in the print resources section under Print resources - Victoria.
Linked Learning Outcomes - NSW
Theme 6: Mathematics in the community
1. Chooses and sequences arithmetic operations to solve problems
2. Selects and uses appropriate mental, written of calculator techniques to perform a variety of operations involving fractions, decimals, percentages and words.
Learning Outcomes – Victoria
Victorian Essential Learning Standards (VELS) Discipline-based learning
Domain: Maths
Dimension: Number, Space, Measurement, Chance and data, Structure and Working Mathematically
Level 5
Students use efficient mental and/or written methods for arithmetic computation involving rational numbers, including division of integers by two-digit divisors.
Students formulate conjectures and follow simple mathematical deductions.
Level 6
Students carry out arithmetic computations involving natural numbers, integers and finite decimals using mental and/or written algorithms.
Students choose, use and develop mathematical models and procedures to investigate and solve problems set in a wide range of practical, theoretical and historical contexts.
Learning Outcomes - Western Australia
(Maths)
N 8.5 Calculates with integers, decimals and fractions using mostly mental strategies for integers, money and readily-visualised fractions.
WM 5.5 Draws on mathematical knowledge to give reasons for conjectures before testing them, and refines and modifies conjectures as a result of testing.