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              <p>&lt;div&gt;&lt;p&gt;sequence prepared collectively by secondary mathematics teachers and researchers. This contribution reports on a sequence of lessons about approaching the measurement of area of irregular surfaces from a probabilistic perspective at grade 7 (students of 12-13 years). Scratch was used to program a simulation to estimate the area of irregular surfaces.&lt;/p&gt;&lt;/div&gt;</p>
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