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Thread: Lattice Multiplication anyone????

  1. #1
    Mimito2's Avatar
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    I help my 9 yr old GS with homework each afternoon. He is in 4th grade and is in the process of being tested for dyslexia, etc. Last week I got this paper explaining that we were to now do multiplication with their new lattice technique.... What THE *&^*&^. Imagine this. Draw a windowpane with 4 windows in it and draw a line from bottom left to top right in each "pane" to make a triangle. Put top number of the problem on top over "panes" and put the bottom number of the problem down the side of the "panes" then multiply it out and put the answers for the ones section in the bottom triangles and then multiply the tens and put the answers in the top triangles then add from bottom right to top left putting the answer under the corresponding windowpanes and up the left side.... Do HUH??? After more than an hour and 2 problems done I tossed the example paper in the air (behind the couch) and said lets try this. Then I showed him how us "old" people did it. 10 problems done in 30 min... worked out on the homework paper. I got a note "requesting" that "I" give the "new" technique a chance....My question is why? If it ain't broke, don't fix it..especially with a child that is already in Special Ed...

  2. #2
    Power Poster amma's Avatar
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    I have been through various "new math" methods over the years... I couldn't figure it out either LOL and I taught my kids and the others the old fashioned way too. I don't understand taking a basic concept and making it more complicated... :roll:

  3. #3
    Super Member plainjane's Avatar
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    Why make it harder?!? I can remember my senior year in high school, someone decided to introduce "transformational grammer." I diagrammed sentences in junior high and loved it! Hated the new stuff-turned me off, dreaded the English class my last year. I hope you can help to keep down frustration-you're a good Mimi to help!

    Back in my day, there was new math or algebra-algebra was way easier!

  4. #4
    Super Member Quiltforme's Avatar
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    NO KIDDING!!! I cannot stand this new math crap! I taught my kids the old way and they are excelling better than their peers!! What is wrong with this???

  5. #5
    Super Member Leota's Avatar
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    Bottom line... they still have to know 1 - 9 multiplication tables before they can do double digits.... There is no "easier" method to learn these...

  6. #6
    Power Poster Sadiemae's Avatar
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    I don't understand why do this. And they wonder why kids struggle...

  7. #7
    Super Member dvseals's Avatar
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    *shakes head* I totally sympathize with you, I can't figure out the "new improved" stuff either always drove me nuts tryin to help kids do homework and trying to show them the way the teachers wanted it done only to have both of us even more confused and no homework done.

    We're having issues with my daughter's algebra teacher.

    here's just the latest edition of algebra gone wrong.

    Daughter just told me he "informed" them today that he's lost the grades for this half of the trimester and if the kids don't have the "hard copies" of their papers they'll get 0's...(most of which he hasn't handed back to them and said he doesn't want to re-grade them)

    he claims he told them at beginning of year to save all papers..
    he rarely uses real "paper" 95% of it's done on the computer so him telling them to keep their "papers" is kinda hard to believe as you can't save what you don't use.

    And if he wasn't so engrossed with the football playoffs maybe he wouldn't have "deleted" the grades to begin with.

    okies I'ma stop now before I rant any further..

  8. #8
    Super Member plainjane's Avatar
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    Quote Originally Posted by dvseals
    *shakes head* I totally sympathize with you, I can't figure out the "new improved" stuff either always drove me nuts tryin to help kids do homework and trying to show them the way the teachers wanted it done only to have both of us even more confused and no homework done.

    We're having issues with my daughter's algebra teacher.

    here's just the latest edition of algebra gone wrong.

    Daughter just told me he "informed" them today that he's lost the grades for this half of the trimester and if the kids don't have the "hard copies" of their papers they'll get 0's...(most of which he hasn't handed back to them and said he doesn't want to re-grade them)

    he claims he told them at beginning of year to save all papers..
    he rarely uses real "paper" 95% of it's done on the computer so him telling them to keep their "papers" is kinda hard to believe as you can't save what you don't use.

    And if he wasn't so engrossed with the football playoffs maybe he wouldn't have "deleted" the grades to begin with.

    okies I'ma stop now before I rant any further..
    I'm thinking this would mean a trip to the school to file a BIG complaint!

  9. #9
    Super Member dvseals's Avatar
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    we had a conversation during conferences and I was apparently one of the "nice" convo's he had during conferences.

    Yes looks like I'm gonna have to have another convo, maybe with someone a lil higher up the food chain this time.

    *Sigh*

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    I had this with my kids, one daughter we were told was mentally "slow" and really retarded, so should be put into a "SPECIAL" class. One secretary there whom we knew said the school got lots extra money for each child in special classes.
    My new husband refused to believe that she was retarded, this was the kid who figured out our gas milage when we went traveling, etc. She had a really sharp mind. She had already been tested in school and had no eye problems, 20/20. But a special optometrist agreed, she did have 20/20 vision, except that one eye saw things at a different level than the other. She had to wear special glasses but turned out alright, made it to being a Physician's Assistant. I also agreed with both my girls that the Dick and Jane books were boring as all get out, found a set of the old McGuffey Readers which were still being printed and were much more interesting to children. It taught by the sensible phonics method, not the look and guess which seemed to be the norm in the 50s. I also found a big abacus which they learned to use because it was fun, and in a sneaky way it helped them learn math.

  11. #11
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    And my daughter WAS AND STILL IS Dyslexic but she got where she is by carefully putting work in 10 and 15 minute segments, more or less like the Internet Flylady suggests all of us do. Very effective use of time.
    She also loves reading the Anne McCaffree science fiction novels, which are not slim books and have a lot of difficult sections in them. I've given some of them to other women and had them returned as being "too hard to read" and other comments that make me believe that they can't read that well.

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    Publicity. Publicity. Publicity, that is what schools hate.
    I suggest that you make an appointment to see the principle and tell him/her why, and ask permission to bring along a disinterested friend..who works for the local newspaper.

  13. #13
    ilovequilts's Avatar
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    Hey! I hope things got figured out, I recently took Math for Elementary School teachers and had to learn a billion ways of multiplication. I found a worksheet that seems to explain it pretty simply.

    http://www.superteacherworksheets.co...e/lattice2.pdf

    Try this, and if it doesn't help, you are more than welcome to PM me :)

  14. #14
    Super Member C.Cal Quilt Girl's Avatar
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    Had one who didn't mark in the book that had been turned in, finally worked it out that were checked in at the office before taken to class!! (Problem solved) This was also the one who never finished gifty projects till sent home at the end of the year, thanks for the xmas gift in june... humm what was taught that year?
    But most have ran into are Great... and just teaching what they are told to.

  15. #15
    Super Member lizzy's Avatar
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    Don't blame the teachers. The local school board falls for all these new methods presented to them by book companies and decide to try these new methods to raise their rank in the state. Then, teachers are obligated to use these methods. It is up to parents to talk to the school board and express their concerns. Believe me, the teachers would appreciate the parental input. They also dislike the "new" way of teaching. Retired 5th grade teacher.

  16. #16
    Power Poster ckcowl's Avatar
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    the main reason to give the new technique a try is because the teacher is evidently using the technique in class and if you 'choose' to teach your gs some other way he will never catch-on and be able to understand what the teacher is talking about. you are setting him up to fail.
    when my son was in algebra class years ago he had a teacher that was doing something i thought was ridiculous and took twice as long to get to the answer we figured out (my-way) he struggled through the whole year and even when he had the answer correct he was graded on writing out the whole problem and steps, since he did not follow the steps the teacher taught he was marked wrong on everything. teacher and i went round and round...i could not help him with his homework because i was causing him to fail math. sometimes it seems the correct end result is not as important as the steps you took to get there :wink:

  17. #17
    Super Member Deb watkins's Avatar
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    Quote Originally Posted by lizzy
    Don't blame the teachers. The local school board falls for all these new methods presented to them by book companies and decide to try these new methods to raise their rank in the state. Then, teachers are obligated to use these methods. It is up to parents to talk to the school board and express their concerns. Believe me, the teachers would appreciate the parental input. They also dislike the "new" way of teaching. Retired 5th grade teacher.
    I agree with Lizzy - we are obligated to 'teach' what ever the 'newest method' of whatever comes along. We often don't like it, and it is only when parents get involved (as the progress of their child declines) that we return to the "old fashioned" way of doing thing. If it isn't broke, don't fix it!

  18. #18
    Power Poster nativetexan's Avatar
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    my brain always had a different way of doing math. drove my teachers nuts. "you must do it my way" attitude. why?

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    I teach 5th grade. Lattice is introduced before they get to me. It offers a new algorithm for some to try; partial products is another. But I encourage traditional multiplication in my class, although I tell them to use what helps them be most successful . I do suggest they can't be drawing lattice boards every time they need to multiply as a adult. :wink: We've had races too... whoever is doing traidtional always wins. That motivates them more than anything to learn it. :lol:

  20. #20
    Super Member mary quite contrary's Avatar
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    Quote Originally Posted by dvseals
    *shakes head* I totally sympathize with you, I can't figure out the "new improved" stuff either always drove me nuts tryin to help kids do homework and trying to show them the way the teachers wanted it done only to have both of us even more confused and no homework done.

    We're having issues with my daughter's algebra teacher.

    here's just the latest edition of algebra gone wrong.

    Daughter just told me he "informed" them today that he's lost the grades for this half of the trimester and if the kids don't have the "hard copies" of their papers they'll get 0's...(most of which he hasn't handed back to them and said he doesn't want to re-grade them)

    he claims he told them at beginning of year to save all papers..
    he rarely uses real "paper" 95% of it's done on the computer so him telling them to keep their "papers" is kinda hard to believe as you can't save what you don't use.

    And if he wasn't so engrossed with the football playoffs maybe he wouldn't have "deleted" the grades to begin with.

    okies I'ma stop now before I rant any further..
    We learned in grade school to save EVERY paper our daughter came home with. Her third grade teacher didn't like her and made no secret about it. She said dd didn't turn in a paper that I remember seeing that had been graded but we had tossed it. She got a 0 on it. After that I kept everything! at least until the end of the school year.

  21. #21
    Super Member dvseals's Avatar
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    Quote Originally Posted by mary quite contrary
    We learned in grade school to save EVERY paper our daughter came home with. Her third grade teacher didn't like her and made no secret about it. She said dd didn't turn in a paper that I remember seeing that had been graded but we had tossed it. She got a 0 on it. After that I kept everything! at least until the end of the school year.
    That's more than half the problem, our school uses Macbooks for 99% of their work so if it's done on the comp it stays on the comp until end of the year.
    I've seen one (1) physical piece of paper with school work on it all year.

    Sorry to hijack your thread I'll hush now

  22. #22
    bj
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    When I taught 4th grade, I showed mine the lattice method. Every year there would be some kiddos who'd struggled with traditional that lattice would click for. Once I showed them how and practiced a couple of days, I gave them the choice. Most chose traditional, but for those that can't make sense of it right then, lattice was a godsend. I've even had parents want to come up for a lesson because they had such a hard time with multiplication. Why not show them how? I think it's kindof fun. Mine liked it because you could do such big numbers and not get lost in bringing down zeros. In elementary school sometimes it's more about teaching them to look at things a different way and think outside the box. Being willing to try to be a problem solver serves them well when they get into math classes that are not all about "cut and dried" methods.

  23. #23
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    This lattice method is dumb. We wonder why our students can't do math without a calculator? They are so confused. There are so many ways to solve a problem. Why force someone into one method that doesn't work for them? I don't care what a textbook says, I still have to make sure my student masters a concept. I will use a variety of options for them to use. I'm not a purist. I just want them to learn one that works every time. Shortcuts should be taught after the fundamentals and understood well.

    Teachers who have lost their grades are a problem. My gradebook was backed up by me daily on my personal flash drive and nightly by the school district. If grades were "lost" the only thing truly lost was the last days entries. Your child/and you should have been given periodic print out of grades. I told my students to keep all graded papers to verify that I haven't entered a grade in error (it happens like a 79 instead of a 97). Their paper was the proof that would make me change the grade.

    Computerized assignments should have a server backup or a student grade file somewhere. My students kept a copy and I kept one. I liked the double redundancy. My theory is technology will fail you always. Plan for it.

  24. #24
    Super Member Annaquilts's Avatar
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    Thankfully we do not do that.

  25. #25
    Mimito2's Avatar
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    [quote=ilovequilts]Hey! I hope things got figured out, I recently took Math for Elementary School teachers and had to learn a billion ways of multiplication. I found a worksheet that seems to explain it pretty simply.

    http://www.superteacherworksheets.co...e/lattice2.pdf

    Try this, and if it doesn't help, you are more than welcome to PM me :)
    Thanks ilovequilts :) I went to the link and printed off the instructions. They look so much simpler than what Tim's teacher sent home. Her example had 4 digits on them and Tim and I were both lost.
    Karon

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