Work Sample : Lesley

Activity : Changing rectangles

    Changing rectangles - Lesley : Grade Commentary

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Lesley has demonstrated sound knowledge and understanding of perimeter and area. Five examples have been drawn, and correct measurement units have been used to perform calculations, but there are some inaccuracies. The relationship between area and perimeter is shown through the diagrams. An adequate level of competence is evident in the justification provided but the explanation lacks clarity and would benefit from more effective use of mathematical reasoning and terminology. 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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