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# Mobile Phone Plans

Students explore the mathematical concepts of cost estimates, data analysis, cost time graphs, line graphs and tables.

### Teacher notes

• Student use line graphs to analyse the costs associated with some different mobile phone plans.
• Students interpret patterns to make predictions and comparisons between different plans using graphs to analyse and compare the costs associated with different plans.
• Students recommend the cheapest plan for each user profiled.
• The learning objects become progressively more difficult as the number of options and alternatives increase.

### Learning objects

 Mobile phone plans: find the best deal 1Students compare monthly costs of a current prepaid plan (covering calls and texts) for 3 different users with costs from a new phone company. Mobile phone plans: find the best deal 2Students compare monthly prepaid plans (covering calls, photos and texts) offered by three companies for a range of users with different calling patterns. Mobile phone plans: find the best deal 3Students compare monthly prepaid plans (covering 6 options) offered by three companies for a range of users with different calling patterns. The plans include discounted rates for calls to subscribers of the same company. Mobile phone plans: peak and off-peakStudents compare monthly costs on two different calling plans (peak and off-peak) for a range of users with different calling patterns. Mobile phone plans: one companyStudents compare monthly costs on three different calling plans for a range of users with different calling patterns offered by a company. Mobile phone plans: several companiesStudents compare monthly costs for a range of users using three similar plans offered by three different companies.