Are you faced with the challenge of teaching students to divide with fractions, but don’t know how to lay the foundation for “numerator times numerator and denominator times denominator?” Too often our students retain minimal information regarding the division of fractions from day to day and year to year: which one do you flip, why am I multiplying when it says to divide, etc.
This lesson was designed to lay the foundation for dividing with fractions through models and to bridge the connection from the model to the algorithm where you multiply by the reciprocal. This is by no means a “keep change flip” rote practice type of lesson. Every part of this lesson is grounded in solid math through modeling the division of fractions. There is no doubt that by the completion of the lesson that students will understand why you multiply by the reciprocal to find the quotient to the division problem. More importantly, students have a modeling strategy to fall back on when they need reminding of the algorithm for dividing with fractions.
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Created by Kayce