This PowerPoint was created with explicit instruction in mind. It will help teachers present information, develop concepts, demonstrate processes and revise. The language is concise. The graphics are relevant and eye-catching.

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Focus

• area is the amount of surface inside a closed shape
• area is conserved when a shape is cut into pieces, and the pieces reassembled differently
• it is not always easy to visually compare areas
• areas can be accurately measured and compared by counting square units (whole and partial)
• two metric units used to measure area are square centimetres and square metres