Ohio Mathematics Academic Content Standards (2001)
Geometry and Spatial Sense Standard
Use trigonometric relationships to verify and determine solutions in problem situations.
Grade Level Indicators (Grade 12)
Derive and apply the basic trigonometric identities; i.e., angle addition, angle subtraction, and double angle.
Patterns, Functions and Algebra Standard
Translate information from one representation (words, table, graph or equation) to another representation of a relation or function.
Grade Level Indicators (Grade 9)
Generalize patterns using functions or relationships (linear, quadratic and exponential), and freely translate among tabular, graphical and symbolic representations.
Principles and Standards for School Mathematics
Represent and analyze mathematical situations and structures using algebraic symbols
understand the meaning of equivalent forms of expressions, equations, inequalities, and relations;