Understanding angles (age 10+)
Recognise angles where they meet at a point, are on a straight line, or are vertically opposite; find missing angles using these properties
Usually learned at ages 10–11
Builds on: Measuring angles (age 9+), Types of angles (age 8+), Angle Sum Rules
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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