Predict: I predict this problem will involve problem solving, numbers and comparing skills.
Read: “Which deal costs less per litre? A) $32 for 4L B) $8.50 for 1L”
Clarify: nothing to clarify
What’s the BIG Question?: Out of the two options, what deal on litres cost less per litre?
Strategies: “Write an Equation” and “Do I know a Similar Problem” (For more strategies, check out my “Mathematician’s Toolbox” page. Here is the link: http://grace2012.global2.vic.edu.au/mathematicians-toolbox/ Enjoy!)
Solving Procedure: Firstly, to work out how much option A would cost I divided 32 by 4, I got 8. Now knowing that option A was $8 per litre I instantly knew it was cheaper than option B because it said that it was $8.50 per litre.
Summary: In the end I got the answer of option A and used my estimated strategies, my prediction was also correct.
By Gracie 🙂