Introduction to Complex Numbers
Students explore the imaginary unit and perform operations with complex numbers. They connect complex roots to quadratic equations.
About This Topic
Students explore the imaginary unit and perform operations with complex numbers. They connect complex roots to quadratic equations.
Key Questions
- What is an imaginary number?
- How do we add, subtract, and multiply complex numbers?
- What does a complex root tell us about a quadratic function's graph?
Planning templates for Algebra II
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
Unit PlannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
RubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
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