Heavy and Light — Weighing
Calculating the surface area of cuboids by finding the area of each face.
Key Questions
- Which object feels heavier — the book or the pencil case?
- Can you balance the scales — what do you need to add?
- Put these objects in order from lightest to heaviest.
NCCA Curriculum Specifications
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
Planning templates for Foundations of Mathematical Thinking
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 Long and Short — Measuring Length
Perimeter of 2D Shapes
Calculating the perimeter of various 2D shapes, including rectangles, squares, and composite shapes.
2 methodologies
Covering Surfaces
Calculating the area of rectangles and squares, and understanding units of area.
2 methodologies
Big and Small Shapes
Calculating the area of triangles and parallelograms using their respective formulas.
2 methodologies
Filling and Capacity
Calculating the volume of cuboids and understanding units of volume.
2 methodologies
Comparing Sizes and Amounts
Converting between different units of length, mass, and capacity within the metric system.
2 methodologies