Properties of Polygons (Regular and Irregular)
Students will identify and describe properties of regular and irregular polygons, including interior and exterior angles.
Key Questions
- Differentiate between regular and irregular polygons.
- How can you calculate the sum of interior angles of any polygon?
- Explain the relationship between interior and exterior angles of a polygon.
MOE Syllabus Outcomes
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
Planning templates for 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.
More in Geometry and Angles
Angles on a Straight Line and at a Point
Students will identify and apply properties of angles on a straight line (sum to 180°) and angles at a point (sum to 360°).
3 methodologies
Vertically Opposite Angles
Students will identify and apply the property of vertically opposite angles being equal.
3 methodologies
Angles in a Triangle
Students will apply the property that the sum of angles in a triangle is 180° to find unknown angles.
3 methodologies
Angles in Quadrilaterals
Students will apply the property that the sum of angles in a quadrilateral is 360° to find unknown angles.
3 methodologies
Rotational Symmetry
Students will identify and describe rotational symmetry in 2D shapes, including the order of rotational symmetry.
3 methodologies