Maths

Calculate Perimeter: Count (Irregular)

EASYTEACHING.NET

Overview:

Students find the perimeter of irregular shapes by counting squares along the edges. Designed for middle and upper years students.

Learning Objectives:

  • Calculate the perimeter of irregular shapes by counting squares.
  • Understand how to determine the perimeter of shapes with uneven sides.
  • Develop skills in using a grid to measure the total length around irregular shapes.

How the Activity Works:

Students are given irregular shapes on a grid and are asked to count the number of squares along the edges of each shape to find its perimeter. They will carefully tally the squares on each side and add them together to calculate the total perimeter. This activity helps students visualise and understand the concept of perimeter for irregular shapes while practising measurement skills using a grid.

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