A Math Word Wall PEMDAS Mobile


Some ideas seem so simple but for some reason have details that take forever to work out. This PEMDAS mobile was one of those ideas. 

UPDATE! There are now letters included to make a GEMDAS, GEMS, GEMA, BIMDAS or BEMDAS mobile instead.

For a long time I had wanted to find a way to show that division and multiplication and subtraction and addition can switch order depending on which of the pairs comes first in an expression. I love mobiles because they are dynamic. So a PEMDAS mobile just seemed like a good idea!

free PEMDAS mobile math word wall

I know that PEMDAS is a little controversial and that a lot of teachers would rather use a different acronym, or maybe forgo acronyms altogether in favor of Order of Operations. In my experience, kids understand that brackets are used to line up grouping pairs, similar to computer coding. Still, if you like GEMDAS, BIMDAS or BEMDAS, I included a G, I and a B that can be subbed in for the P.

free PEMDAS mobile math word wall

The first thing I did was color then cut out the 8 pieces. I like rainbow theme, but you can color it to match the theme of your room. I printed on thick paper, almost like that oak tag we all used to pine over in the 1980s.

free PEMDAS mobile math word wall

I then flipped one of each P, E, MD, AS piece face down, put glue in the center and ran a ribbon down the middle on the glue.

free PEMDAS mobile math word wall

Next came the matching pieces glued on top and then a big book to flatten for a bit. 

free PEMDAS mobile math word wall

I only flattened for about 5 minutes in case some pieces stuck together, which they did. The glue was still wet to they were easy to peel apart. 

PEMDAS mobile tor a math word wall

And here's the final product! If I were to make it again, I might use a thinner ribbon so the pieces could move more independently of each other. This mobile matches my other math word walls so that it can be used as a supplement. 

visual math word walls

You can download the PEMDAS mobile seen in this post for free here

Math classroom decoration ideas

There are more decor ideas in the post math classroom decoration ideas.

free Order of Operations Math Pennant Activity

And here is a free math pennant for order of operations that has been downloaded over 30K times.  


8 comments:

  1. Just perfect and exactly what I need. Also, love the mobile idea and wouldn't have thought of that on my own. Thank you!

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    1. Thank you Dawn! I hope it helps kids see that M/D and A/S switch. I hope you have a great year!

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  2. I was trying to get the free mobile download but it sent me to the pennant download.

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    1. The blue "here" in the last paragraph will bring you right to it. :)

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  3. I love the mobile idea! I think it will help students see the switch. I also like that you gave options for GEMDAS and others that might be taught. Thank you!

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    1. Thank you Deb! I hope you have a wonderful year!

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  4. Love this visual! I know my students will love it! I like how you set up the multiplication and division and the addition and subtraction. This reinforcement for those having difficulties in an observable format! Genius!

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    1. Thank you so much Kathryn! I hope you have a fantastic school year!

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