Comparison shopping and decisions around buying goods and services tie in very well in many areas of mathematics. Modeling financial decisions comes into play for students at many ages – after school snack options, cell phone plans, college costs, and many more scenarios are great places for students to connect to mathematics, in particular algebra and pre-algebra, with real world concerns.

Highlighted Tool: Is it better to Buy or Rent?

This tool from the New York Times is a great exploration for students and allows opportunities to practice interpreting graphs and using that information to inform decisions. Students can also explore the ways that increasing different inputs into this model effect the shape of the graph and when to buy or rent.

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