Two-dimensional spatial structure B
Mathematics K–10 (2022) · Stage 3 · View this focus area on the NESA NSW Curriculum website ↗
Outcomes
MA3-2DS-01 investigates and classifies two-dimensional shapes, including triangles and quadrilaterals based on their propertiesMA3-2DS-02 selects and uses the appropriate unit to calculate areas, including areas of rectanglesMA3-2DS-03 combines, splits and rearranges shapes to determine the area of parallelograms and trianglesContent dot points
Each dot point has its own page with resources matched to it.
2D shapes: Dissect two-dimensional shapes and rearrange them using translations, reflections and rotations
- Use the terms translate, reflect and rotate to describe transformations of two-dimensional shapes 2 resources · 2 interactive/game
- Dissect and rearrange one shape to make another
- Recognise that translations, reflections or rotations change the position and orientation but not the size of shapes (Reasons about spatial orientation)
Area: Find the area of composite figures
- Find different ways to calculate the area of a composite L-shape figure 1 resource · 1 interactive/game
Area: Calculate the area of a parallelogram using subdivision and rearrangement
- Show how to transform a parallelogram into a rectangle to find its area 1 resource · 1 interactive/game
- Record, using words, a method for finding the area of any parallelogram
Area: Determine the area of a triangle
- Investigate the area of a triangle by comparing it to the area of a parallelogram with the same base length and height 1 resource · 1 interactive/game
- Establish the relationship between the area of a triangle and the area of a parallelogram formed by duplicating and rotating the triangle
- Record, using words, a method for finding the area of any triangle
Stage 3 planning resources
Stage- or course-wide documents (scope and sequences, guides) that cover this focus area alongside others.
- Unit/PlanningSample scope and sequence – Stage 3
- Unit/PlanningMaking connections – Stage 3 (parallel content)