**TEKS Standards and Student Expectations**

**A(12)** Number and algebraic methods. The student applies the mathematical process standards and algebraic methods to write, solve, analyze, and evaluate equations, relations, and functions. The student is expected to:

**A(12)(D)** write a formula for the nth term of arithmetic and geometric sequences, given the value of several of their terms

**Resource Objective(s)**

Given a pictorial or tabular representation of a pattern and the value of several of their terms, the student will write a formula for the nth term of a sequence.

**Essential Questions**

What strategies can be used to think about how to organize data?

How is a geometric sequence different from an arithmetic sequence?

**Vocabulary**

- Expression
- Additive Relationship
- Multiplicative Relationship