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$13.99

SIR CUMFERENCE ISLE OF IMMETER

  • Description

When young Per visits her uncle Sir Cumference and his family, she learns how to play the game Inners and Edges. After she finds a clue linking the game to the mysterious castle on the island of Immeter, she must figure out how to find the perimeter and area of a circle to unlock the island's secret.

Maths skills taught include finding the area and perimeter of a rectangle and a circle. Introduces an underlying concept of calculus—using straight lines to measure curves.

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