These are the notes that I use at the beginning of this unit to introduce some basic vocabulary about arithmetic sequences and also the recursive formula. Notes include instructions for determining if the sequence in arithmetic, finding the common difference, stating the next 3 terms, and writing a recursive rule to model the sequence.
There is also a practice assignment included for after the notes. I use this as homework but feel free to use however you see fit.
Please let me know if you have any questions!