Work Sample : Sam

Activity : Perimeter

    Perimeter - Sam : Grade Commentary

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Sam has demonstrated an adequate level of competence in calculating and recording perimeter measurements. A variety of shapes with perimeters of 20 cm, including an irregular trapezium, have been drawn. An attempt has been made to use half-centimetre measurements but the results are inaccurate. A simple explanation has been provided but Sam has not verified how the perimeters were determined and there is little use of mathematical terminology. This work sample demonstrates characteristics of work typically produced by a student performing at grade C standard midway through 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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