Modeling Fraction Subtraction as the Difference Between Two Strips
Explore fraction subtraction as the difference between the lengths of two strips.
Enter two proper fractions and click Subtract. Then use the + and − buttons to generate equivalent fractions with a common denominator. Click Reset Model to restart the animation.
Note: Adapted from Regional Educational Laboratory Midwest.
Adapted from the Fraction Bar - Subtraction resource by Auston B Cron, who thanks Tang Dashi on the GeoGebra Forum. Adapted by Regional Educational Laboratory Midwest for use with the Teaching Fractions Toolkit, which is based on the IES Practice Guide Developing Effective Fractions Instruction for Kindergarten Through 8th Grade.
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