Te Kete Ipurangi
Communities
Schools

# Tennis costs

Keywords:
Achievement Objectives:

Achievement Objective: NA4-4: Apply simple linear proportions, including ordering fractions.
AO elaboration and other teaching resources
Achievement Objective: NA4-9: Use graphs, tables, and rules to describe linear relationships found in number and spatial patterns.
AO elaboration and other teaching resources

Purpose:

The purpose of this activity is to engage students in using arithmetic and pre-algebra techniques to solve a financial problem.

Description of mathematics:

The background knowledge and skills that need to be established before and/or during this activity are outlined in the diagram below:

Click to show example questions for each heading

This activity may be carried out with step by step guidance, or by allowing the student to follow their own method of solution. The approach should be chosen in sympathy with students' skills and depth of understanding.

Activity:

Charlie plays tennis, with one ladder competition day each week.

It costs \$70 for the season’s subs and his mother drives him the 10 km each way to the tennis club (running costs for the car are 70 cents per km).

If the season runs for 14 weeks, what is the cost of competing in this tennis club ladder?

If he finds a way to share transport with another player (so his Mother only needs to take him every second week), what would the cost for the season become?

Are the savings worthwhile?