Wednesday, October 19, 2011

Least Common Multiple... You Tube Style

In Math we have been going over factors, greatest common factor and least common multiple.  The biggest thing I try to teach is "Why do I have to learn this?  When will I ever use this??"  I think if I can answer these questions everyday to each concept... and with a valid reason (even though I wanna say... "because the state of Texas said so")... then I can get the kids more into my lesson. 

As I was lesson planning I thought.... when do I use LCM??   Duh Leslie- just about everyday (especially at the beginning of the year when making stuff for the kids).  Then I started thinking about packages and things that come in packages which immediately led me to think of the famous hilarious scene in Father of the Bride.

He goes nuts.... taking buns out of the hot dog bun packages, after all hot dogs come in packages of 8 and buns in packs of 12. 
I showed this to my kids (most of who have never heard of this movie) and they loved it!  I asked them to pay attention to how many bun packages he destroys.  Did you see??

He alters 3 packages... taking out 4 buns from each and ends up going to jail.  I asked my kids "How many buns did he want if he destroyed 3 packs by taking 4 out?"  Well he wanted 24 buns.  Well then what should he have done?  Buy 2 packages.... he would not have had security called, saved money, and not ended up in jail!!!!   

Look at how important LCM is!!!!  It can keep you sane and out of jail!  After this video, the kids were asking if they could rent the movie at Redbox.... :)  Don't you love when capture their interest? :)

Have a blessed and laughter filled week!


  1. Hi Leslie!

    I am in a training on... you guessed it... BLOGGING.
    They don't know I am blogging while they are talking about blogging!
    I am teaching GCF (my book calls it GCD!) and LCM...
    This is what I need! You ALWAYS give me something I can use the next day!!!
    YAY, YOU! And thanks!

    (I'll check back again when I am not being supervised!)

    Finding JOY in 6th Grade

  2. Love your blog and have given you the Blog on Fire award:)

    4th Grade Frolics

  3. Merry Christmas!!!! Hope you're enjoying a day full of love & laughter surrounded by loved ones!!!

    I've got your Christmas gift waiting for you!!!!! Come unwrap it ♥

    ❤ Mor Zrihen ❤
    A Teacher's Treasure

  4. I am new to blogging and just found you from another blog. I love that you are teaching sweet little children about Jesus. Such a great ministry! I teach first grade. My blog is about my family life and teaching. Come check me out! I would love the input. God bless u
    ~ vicky :o)

  5. nice ,,
    i want to share LCM from other source