## Reflection: Grappling with Complexity Associative Property With Manipulatives - Section 3: Active Engagement

As the students were working and drawing their models, I was reminded again about how complex this work is for students.  Many of the students could very quickly tell me the product of the equations, use parenthesis, and explain with words.

However, when it came time to draw the models, students were stumped on drawing the model in the parenthesis a given number of times, which is the third factor.  I had to back up in my mind of the outcome of the lesson and allow them to grapple with understanding the concept and make sense of it on their own.

These girls struggled with what their third factor was telling them to do.  Watch how they talk through what they think and revise their work with some prompting.

I will continue to put into place more practice as me move through future lessons.

Go slow to go fast.

Flexibility
Grappling with Complexity: Flexibility

# Associative Property With Manipulatives

Unit 2: Understanding Multiplication
Lesson 15 of 15

## Big Idea: Children need to understand why the mathematical properties work and how they are applied. In this lesson, we explore modeling and "proving" the associative property.In this lesson, we explore modeling and "proving" the associative property.

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Standards:
Subject(s):
Math, Reasoning with real numbers, commutative property of multiplication, Number Sense and Operations, product, factors, multiplication, rigor, math journaling, partnership work, model with math, associative property, math prompts
62 minutes

### Michelle Marcus

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