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Lattice Multiplication - TOTAL IDIOCY!!!
Posted: Wed Jan 07, 2015 7:10 pm
by grouchy
We have Trey, our 4th grader with us tonight. He is a darn smart kid.
He has been introduced to "lattice multiplication" this week. Sorry folks, it is pure bs. Sometime
old school is best. Google it.
Re: Lattice Multiplication - TOTAL IDIOCY!!!
Posted: Wed Jan 07, 2015 7:32 pm
by Sangersteve
Sounds like more common core goofyness. I have looked at some of this carp and it is much more confusing than the old fashioned way. 21 steps to get to the same answer as opposed to 3 steps the old way.
Re: Lattice Multiplication - TOTAL IDIOCY!!!
Posted: Wed Jan 07, 2015 7:41 pm
by grouchy
Yep!
Karen tells me that this type of thing works best for the kids with learning difficulties. I am glad for
them, and it does not hurt for the regular kids to learn an alternative method. But, I do prefer the
old school approach.
Re: Lattice Multiplication - TOTAL IDIOCY!!!
Posted: Wed Jan 07, 2015 11:05 pm
by GRANDPA
Wikipedia says it's a very old method, so Common Core might not have anything to do with it. But I wouldn't be surprised. It looks to me like you still have to know how to multiply to know what numbers to put inside the lattice. If you know how to do that, then what's the point?
Re: Lattice Multiplication - TOTAL IDIOCY!!!
Posted: Thu Jan 08, 2015 9:31 am
by John in Plano
I read wiki and failed to grasp the concept so I watched youtube.
Still fail to grasp the need to make it harder for the majority of students.
https://www.youtube.com/watch?v=cijuPxHgZAA