Perimeter problem solving lesson

A complete lesson of more interesting problems involving perimeter. I guess they’re the kind of problems you might see in the Junior Maths Challenge. Includes opportunities for pupils to be creative and make their own questions.

Activities included:

Starter:
A perimeter puzzle to get pupils thinking, where they make changes to shapes without effecting the perimeter.

Main:

• A set of four perimeter problems (on one page) for pupils to work on in pairs, plus some related extension tasks that will keep the most able busy.
• A matching activity, where pupils match shapes with different shapes but the same perimeter, using logic. I would extend this task further by getting them to put each matching set in size order according to their areas, to address the misconception of confusing area and perimeter.
• Pupils are then prompted to design their own shapes where the perimeters are the same.

Plenary:
You could showcase some pupil designs but much better, use all of their answers to create a new matching puzzle.

Printable worksheets and answers included.

Please review if you buy as any feedback is appreciated!