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n this project, students make a calculator that determines the Air Quality Index (AQI) given user-input sensor data. All calculations follow methods published by the US Environmental Protection Agency (EPA) and give students practice handling user input, rounding/truncating, calculating the max and min, and must handle a a simple calculation that requires either a look-up table or conditionals. This assignment can be given early in the semester to help students gain experience and proficiency with loops, calculating max/min, using conditionals and boolean expressions. 

It can also be used--with some modifications--at many points in the curriculum to explore more complex data structures (2d arrays or dicts), to practice function decomposition, or even object-oriented programming. I have successfully used the assignment twice in one semester, letting students return to the assignment later to see how much simpler the solution becomes when they are able to use functions and complex data structures. See the "redux" files attached here.

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