Perimeter (age 10+)

Recognise that shapes with the same area can have different perimeters and vice versa; explore this relationship systematically

Usually learned at ages 10–11

Builds on: Estimating answers (age 9+)

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On the map from: Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy