Using a protractor to measure angles in shapes

  • Using a protractor to measure angles in shapes
  • Course: Mathematics
  • Grade: Grade 6
  • Section: Angles
  • Outcome: Angle sum of straight lines, triangles and quadrilaterals.
  • Activity Type: Printable
  • Activity ID: 4534

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United States – Common Core State Standards

  • 4 – Grade 4
    • 4.G – Geometry
      • Mathematics

        • 4.G.1 – Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

  • 5 – Grade 5
    • 5.MD – Measurement & Data
      • Mathematics

        • 5.G.3 – Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.

        • 5.G.4 – Classify two-dimensional figures in a hierarchy based on properties.

Australia – Australian Curriculum

  • Year 6
    • Measurement and Geometry
      • Geometric reasoning

        • ACMMG141 – Investigate, with and without digital technologies, angles on a straight line, angles at a point and vertically opposite angles. Use results to find unknown angles

  • Year 7
    • Measurement and Geometry
      • Geometric reasoning

        • ACMMG166 – Demonstrate that the angle sum of a triangle is 180 degrees and use this to find the angle sum of a quadrilateral

New Zealand – National Standards

  • 7 – Year 7
    • 7.GM – Geometry and measurement
      • 7.GM.4 – Sort two- and three-dimensional shapes into classes, defining properties and justifying the decisions made

United Kingdom – National Curriculum

  • KS2 – Key Stage 2
    • KS2.Ma3 – Shape, space and measures
      • Knowledge, skills and understanding

        • Understanding measures

          • KS2.Ma3.4 – Pupils should be taught to:

            • KS2.Ma3.4.c – Recognise angles as greater or less than a right angle or half-turn, estimate their size and order them; measure and draw acute, obtuse and right angles to the nearest degree