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Showing posts from March, 2018

Making Arithmetic and Geometric Series Real

These past few weeks we've been working on Sequences and Series in Algebra II.  We started with an activity I got from a workshop led by Justin Coffey called Hexagon Trains .  This was a great introduction to arithmetic sequences and I plan on doing it again next year with little to no changes.  We wrapped up arithmetic sequences by doing a cup stacking activity I got from the same workshop.  Students got 6 Styrofoam cups to measure, stack, and calculate the common difference between stacked cups.  This generated an explicit formula they could use to predict the amount of cups needed to stack up to a person's height.  Calculations were never exact so this led to discussions as to why we might be off.  Responses included things like imprecise measuring of the common difference, and the weight of stacked cups pushing down and therefore reducing the overall height.  Here is a Twitter post of that activity! Cup stacking challenge was a success today! We used arithmetic sequence