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The core mathematics of this unit is about understanding cyclical relationships between two quantities. Students develop a conceptual understanding of the repetition belonging to periodic functions and using this foundation for interpreting features of trigonometric functions including period, frequency, and amplitude. This unit builds on student experiences from geometry with trigonometric ratios, radian measure, and triangle applications to understand the unit circle as a tool for creating and analyzing trigonometric functions. 
Time frame: 5 weeks 
Initial Task  Developmental Lessons  Closure & Assessment 

1 lesson  4 weeks (approximately 1 week per big idea)  1 week 

Formative Assessment Lesson: Reengagement: Final Task: 