Work Sample : Robyn

Activity : Changing rectangles

    Changing rectangles - Robyn : Grade Commentary

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Robyn has demonstrated sound knowledge and understanding of area and perimeter. Three different rectangles with the same perimeter of 18 cm have been drawn, and the perimeter and area of each one has been calculated, but the correct units for area have not been used. Robyn has used some mathematical terminology to justify answers in a simple explanation, but more detail is necessary. This work sample demonstrates characteristics of work typically produced by a student performing at grade C standard at the end of Stage 3.

Grade C

The student has a sound knowledge and understanding of the main areas of content and has achieved an adequate level of competence in the processes and skills.

Full list of grade descriptions

Foundation Statement strands

The following strands are covered in this activity:

  • Working Mathematically
    Students ask questions and undertake investigations, selecting appropriate technological applications and problem-solving strategies. They use mathematical terminology and some conventions and they give valid reasons when comparing and selecting from possible solutions, making connections with existing knowledge and understanding.
  • Measurement and Data
    Students select and use the appropriate unit to estimate, measure and calculate length, area, volume, capacity and mass. They use 24-hour time in real-life situations and construct timelines. Students draw and interpret a variety of graphs using a scale.
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