Subtracting Positive and Negative Numbers | The Matrix and Batman | PBSMathClub

Math Club parodies the Matrix and Batman to explore the concept that subtraction is merely addition by adding the opposite.
A-B=A+(-B)

Does subtraction exist? Take the red gift card and find out.

Addition and subtraction are two sides of the same coin and can be used to explain lots of things: elections, good and bad feelings, even retelling the plot of the Dark Knight. When the Matrix asks you to add long strings of positive and negative numbers for homework, we explain a neat little trick to help you out.

For Teachers
CCSS.Math.Content.7.NS.A.1c Understand subtraction of rational numbers as adding the additive inverse, p -- q = p + (--q).... apply this principle in real-world contexts.

[matt]

I'm in teacher school. This is a great a idea: incorporating pop culture references to teach academic ideas. Great execution as well: identifiable scenes, dialogue, even the lighting, set, and costume added to the effect. excellent work.

[ihascupquakefanforever]

1:17 who else thought that their device was glitching out

[XEIIKII]

For My homework We Had To Watch This Video And Write About It, Amazing Job!

[ComputerHelpHawaii]

Just wanted to let you know I shared this video with the whole math department. Thank you for making one of the few math videos that's both entertaining on a 7th grade level and educational. I use change the sign add a line all the time and"I don't, not, like him as well.

GREAT JOB.
Rick
Long term substitute teacher and in home tutor Honolulu Hawaii

[ronnnnnn]

I saw this in class today and I loved it. I was laughing and I got the material down too! Great video!!!

[ErikaThornes]

Fantastic Video! I'm telling all my friends to subscribe! Great work! 

[cire]

LOL im cire spencer. im pretty sure some of my classmates are here xD thanks for the help

[thenyanminer]

"I thought there would be more to it, "
"Nah, its pretty easy." XD

[zetazane]

We didn't get to watch this for our homework, but most of them were your vids! Then I discovered my teacher dons like The Matrix!

[gda]

witty AND quality production [oh thnx for the help]

[jennifercollette]

Great video! Going to show this to my 8th graders in math workshop.

[earnestp]

I loved this. It reminded me of my old favorite math show, Square One. 

[brittonsolverson]

We miss you! We want you to make a comeback. I have a whole math class that might make some new amazing math videos!

[burdhan]

This Rocks!!!! Great for helping kids with

[whytewabbit]

This is cool! Great work! Math can be entertaining!

[dimplylobsterhd]

The movie parodies make my day when im trying to learn math

[johannacatay]

Woaahh..

Iam left out in here.
In the chair.
Eyes wide open

Speechless and I . I . I dont know what to say.

This video is totally awesome!!
Jeez thank you very much!!!!

It really did help me a lot. 

[maddiethesmall]

Really nice video, you guys are super funny! Can't stop watching your vids! First time I'm ever been interested in math actually, thanks a bunch!! ^.^

[teachn]

Hilarious! I cannot wait to show my class!!

[lunaluvr]

This is helping so much! I've got a test tomorrow and I'm sure to get an A+! (Which would be a positive on my report card)