Rotational Symmetry (Introduction)
Introducing the concept of rotational symmetry and identifying shapes with rotational symmetry.
Key Questions
- Explain what it means for a shape to have rotational symmetry.
- Compare rotational symmetry to reflective symmetry.
- Identify objects in the classroom that exhibit rotational symmetry.
NCCA Curriculum Specifications
Suggested Methodologies
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Planning templates for Mastering Mathematical Thinking: 4th Class
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.
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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.
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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 Shape, Space, and Symmetry
Classifying 2D Shapes: Polygons
Classifying polygons based on their number of sides and vertices.
2 methodologies
Properties of Quadrilaterals
Classifying quadrilaterals based on their angles and side lengths.
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Properties of Triangles
Classifying triangles based on their side lengths (equilateral, isosceles, scalene) and angles (right, acute, obtuse).
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Reflections in the Coordinate Plane
Performing reflections of 2D shapes across the x-axis, y-axis, and other lines in the coordinate plane.
2 methodologies
Tessellations
Investigating how certain shapes can tile a plane without gaps or overlaps.
2 methodologies