How To Teach Algebra: The Distributive Property Progression with the Area Model (CRA)

"Ditch the algebra tiles!"
Many middle school and high school teachers will often eliminate the use of algebra tiles or in many more cases not even introduce them causing them to promote "ditching algebra tiles".
I have to agree with this.....if those teachers are introducing the tiles without any explanation or demonstration of where they come from or how they connect to other models of multiplication.
In this video you'll learn how to introduce the distributive property in your middle school or high school classrooms; how and why the area model for multiplication must be built upon so that the distributive property in algebra class makes sense; and, how we can use the Concreteness Fading Model to connect multiplying algorithms to the area model.
Resources:
makemathmoment...
Mathigon Polypad - The Distributive Property Progression - mathigon.org/p...

[@jeremiahjoseph2731]

This is really great! might be nice to add an example with -1 earlier in the progression, like 7 * 29 = 7 * (30 -1)

[@isaaclaws9429]

😃 Jon, thanks so much! Loved the 2022 Make Math Moments Summit--my first. I discovered Mathigon through this video. You are much appreciated! (How many teachers watch math videos on Thanksgiving?) 🤣🦃 (BTW, I teach 7th grade math & science.) Peace!

[@MakeMathMoments]

Amazingly dedicated ones!

[@sarahcrandall3847]

It looks like the link to the Mathigon Polypad isn't set up- I would love to save that for my own reference when I come back to this later in the school year.

[@MakeMathMoments]

Sorry about that Sarah, here's the link: mathigon.org/polypad/mCcBCaDushSjg