This collection features two resources on the topic of perimeter.

The resources feature a:

  • Concept development lesson that focusses on developing conceptual understanding of significant mathematical ideas.
  • Task that provide mathematically rich problems that come with work for students to peer assess.

The Mathematics Assessment Resource Service (MARS) is a collaboration between the University of California at Berkeley and the Shell Centre team at the University of Nottingham, with support from the Bill and Melinda Gates Foundation. The team is known around the world for its innovative work in maths education.

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Historic bicycle

This task is designed to assess how well students understand calculating the circumference of a circle, working with imperial units.

The task features a ‘Penny Farthing’ bicycle with a big wheel of diameter 52 inches and a small wheel of diameter 18 inches.

Tasks comprise:

  • Calculating the...

Solving problems with circles and triangles

This lesson develops the concept of using geometric properties to solve problems. In particular students develop their ability in:

  • Solving problems by determining the lengths of the sides in right triangles using trigonometry
  • Finding the measurements of shapes by decomposing complex shapes...