MUS users – ? Re. MUS Delta

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  • January 11, 2013 at 4:59 pm
    missceegee
    Participant

    I have a child on lesson 17 of MUS Delta. It is on upside-down multiplication using place value notation. Dd doesn’t like it. I admit it is weird. I get it, but don’t see the point. Is there any reason to force this? She does it, gets it, but whyis it necessary?

    Thanks.

    January 11, 2013 at 5:03 pm
    Heather
    Participant

    We’re covering the multiplication in Gamma doing the Place Value Notation and I don’t get it – nor do I see the point Wink  I am curious as to what the other replies are on this topic.  Thanks for posting!

    January 11, 2013 at 5:09 pm
    Bookworm
    Participant

    The point of it is for the ease in checking the answer.  I would encourage it because checking is SO important in multiple digit division and having this down makes it much easier to check; however, once the child can check the work competently there is no reason to keep doing it.

    January 11, 2013 at 5:21 pm
    missceegee
    Participant

    Going with you bookworm. We will continue.

    February 11, 2013 at 4:23 pm
    missceegee
    Participant

    Thank you, again. This has been helpful. I think we will continue a bit longer and then easily drop it.

    February 11, 2013 at 6:23 pm
    petitemom
    Participant

    I do not understand. The upside down multiplication is not to check the division results but putting the larger number under the smaller one. And I don’t get it either. To me it makes it longer for nothing.

    We are in Delta too and very stuck, we just kept going even though DS kept on making mistakes and now I need to go back, he is just not getting it. I am finding it so discouraging right now.

    February 11, 2013 at 6:33 pm
    Lesley Letson
    Participant

    I am with Heather in Gamma and had similar issues. What I did was teach it to my son about three different ways – the ways Mr. Demme taught it, and then my way Wink. He said that my was was much easier Cool. Just to be sure I had him explain everything to me, what the place values were etc. until I was convinced that he DID in fact understand the why behind it all and not just how to get the right answer. That is satisfactory enough to me. I have conquered some pretty high level math and honestly my brain had a hard time understanding those other methods – I just chalk it up to all our brains working in different ways to achieve the same results!

    February 11, 2013 at 6:47 pm
    Anonymous
    Inactive

    My dd used this checking method for awhile but does not need it any longer. I don’t think that it was a huge help for us IMHO 🙂

    February 11, 2013 at 9:09 pm
    missceegee
    Participant

    The upside down multiplication makes checking the division easy. It’s easy to see the different values. I had to read the Delta book a couple of times and play with it, but now it makes lots of sense to us. It was great for dd to SEE the importance of place value. I don’t think she will need it much longer, though. 

     

    February 12, 2013 at 12:58 am
    4myboys
    Participant

    Older ds is about to start lesson 16 tomorrow.  Thanks for the heads up.  I’ll have a look at this during the next few.

Viewing 10 posts - 1 through 10 (of 10 total)
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