Brainstorm (group)(20 minutes)
- In groups of 4, students analyse a graph of of converting currencies and write down features of the graphs such as x and y axis and comes up with a way to find the currency conversion rate and how to find the value of a currency through the graph. (communication, reasoning)
- Get students to think why the conversion graph works. Get students to calculate the gradient of the graph. Then research online what the current conversion rate for two currencies are (through this they see that the gradient is the conversion rate). Get students to explain what they have found (communication, reasoning) (AFL)
Teacher questioning/prompts
- Does it matter which currency is on which axis? Why not?
- What relationship can you observe between the gradient and the conversion rate?
Activity 1 (individual): Introducing linear direct proportion (25 minutes)
- Students complete the worksheet activity which converts Australian dollars to Euros (problem-solving, fluency)
- After students finish the worksheet, the teacher will go through the questions with the class, selecting students for their answers for the questions (AFL)
Teacher questioning/prompts
- Does this currency exchange rate represent Australian dollars to Euros? Or Euros to Australian dollars?
Lesson conclusion: Exit slip (5 minutes)
- Students receive an exit slip which they complete and hand in to the teacher before leaving the class (assessment strategy)
Students complete the textbook chapters questions