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Don't Zoom, Move: Treating Your Zoom Lens as a Series of Primes

Zooming in on Number Lines

Number lines are so important in elementary math. Students who can work with number lines efficiently and flexibly develop strong number sense and deep understanding of number relationships. In {this post} on All Things Upper Elementary, I blogged about how I use number lines to teach rounding. While we were reviewing rounding this week, …

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