3. Addition and subtraction to thousands (Levels 2 and 3)
Empty Number Lines F-6
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3m 39s
Peter Sullivan presents a representation designed to assist students in mastering addition and subtraction, particularly with two and three digit numbers. The focus is on the Australian curriculum's key concepts of partitioning and regrouping. Number lines serve as a valuable tool, and an example demonstrates bridging techniques. The session emphasizes both intuitive and formal methods, encouraging familiarity with large numbers through varied questioning.
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