EMBED <iframe src="https://archive.org/embed/a2_Circus_Math_v1.0_1984_MECC_US" width="560" height="384" frameborder="0" webkitallowfullscreen="true ...
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“Darla, as you were comparing 2/6 and 2/4, I heard you mention that 2/4 equals 1/2. Can you tell me more about your thinking?” Are you curious about what Darla, a third-grade student, might say next?
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