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lesson 28
1 hour

Federal Income Tax


This real-life descriptive modeling lesson is about using inequalities and graphs to understand the progressive federal tax system. Like the last lesson, this lesson again runs through the problem, formulate, compute, interpret, validate, report modeling cycle, but unlike the difficult modeling lesson on the double and add 5 game, more autonomy can be given to students in this lesson.


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From of the New York State Education Department. Algebra I Module 1, Topic D, Lesson 28. Available from; accessed 2015-05-29.
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