## Reflection: Modeling Subtracting Mixed Numbers - Section 4: The Elevator Speech

Simply - yes!

I used this same model in the lesson Adding Mixed Numbers but I'm OK with that. It is the concept that I am trying to get across. BUT if it is bothering you, change it and create a new model.

I didn't change the model because what I would do is use this model again and then maybe challenge them with a new one and have some students come up and draw a model.

Repetition is key, so using models that they are familiar will help students solidify their understanding.

Is this the same Elevator Speech as Adding Mixed Number Lesson?
Modeling: Is this the same Elevator Speech as Adding Mixed Number Lesson?

# Subtracting Mixed Numbers

Unit 2: Adding and Subtracting Fractions with Unlike Denominators
Lesson 7 of 7

## Big Idea: Changing Mixed Numbers into improper fractions makes it easy to add and subtract fractions.

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Standards:
Subject(s):
Math, Number Sense and Operations, Operations , equivalent, Fractions, mixed numbers, equivalent fractions, improper fractions, Fraction, Operations
85 minutes

### James Ewing

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