Primary Trigonometric Ratios
Students define the sine, cosine, and tangent ratios for right triangles and use them to find unknown sides and angles.
About This Topic
Students define the sine, cosine, and tangent ratios for right triangles and use them to find unknown sides and angles.
Key Questions
- How do we choose the correct trigonometric ratio for a given problem?
- What is the relationship between an angle and its opposite side?
- How do we use inverse trigonometric functions to find angles?
Planning templates for Principles of Mathematics
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.