This is a 31 page Smartboard file about Arithmetic Sequences. The lesson explains what a sequence is and the steps a student takes to find the "nth" term. The rule is explained and several examples follow. Some of the examples are positive numbers, some are negatives, and a few at the end involve decimals and fractions.
Elementary Algebra is generalized form of arithmetic. It provides a language to represent problems and functions. Algebraic thinking is also one of the first forms of abstract thinking that students develop in mathematics.