tag:blogger.com,1999:blog-4746027850336066537.post7685863832885513584..comments2024-03-21T03:54:48.886-04:00Comments on The Elementary Math Maniac: Fluency with Double Digit AdditionThe Math Maniachttp://www.blogger.com/profile/06177173988483052908noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-4746027850336066537.post-40224845995497669592014-02-27T21:06:29.291-05:002014-02-27T21:06:29.291-05:00It definitely takes more time to teach kids to thi...It definitely takes more time to teach kids to think about math rather than just do it. I find the initial time invested up front saves me time in the long run when kids "forget" the algorithm and have to be re-taught it in third grade, and fourth grade and fifth grade.The Math Maniachttps://www.blogger.com/profile/06177173988483052908noreply@blogger.comtag:blogger.com,1999:blog-4746027850336066537.post-16644261892822389062014-02-27T03:01:21.239-05:002014-02-27T03:01:21.239-05:00I teach both and leave the option to the students....I teach both and leave the option to the students. With a dual curriculum we have very little time and it is very VERY hard to explain to second grade kids the mental math concepts.Mehttps://www.blogger.com/profile/14906504592318878001noreply@blogger.comtag:blogger.com,1999:blog-4746027850336066537.post-25882008020923293122013-12-11T19:46:16.399-05:002013-12-11T19:46:16.399-05:00I thought of one more thing. Talk with the third ...I thought of one more thing. Talk with the third grade teachers about how their students learn multiplication facts. If they are using the distributive property and building up, do the watchers want kids to have to write out and solve double digit addition problems with the standard algorithm or do they want them to be able to do it mentally? I have never met a third grade teacher who wants to add extra steps to the processor learning multiplication facts.The Math Maniachttps://www.blogger.com/profile/06177173988483052908noreply@blogger.comtag:blogger.com,1999:blog-4746027850336066537.post-38104293773522371742013-12-11T19:41:50.131-05:002013-12-11T19:41:50.131-05:00I address these two issues in a few different ways...I address these two issues in a few different ways. First I never send multi digit addition or subtraction for homework in second grade. It just isn't worth it because parents teaching kids "how to do it" undoes the work I do around conceptual understanding and flexible thinking. <br /><br />Second, I have the advantage of also being in the third grade classroom. It took some years of convincing but now the third grade teachers I work with have seen how much better it is when kids think about math rather than doing it. You also have the common core on your side. It specifies that students need to show mastery of a standard algorithm for addition and subtraction by grade 4. That is a long way off from second grade. I would also invite the third grade teachers into your classroom when your kids are doing some of this great conceptual development. Keep having the conversation in your building and keep sending them links to blog posts about other ways to think. I have written about this issue multiple times and there are other bloggers out there writing about it as well. Good luck!The Math Maniachttps://www.blogger.com/profile/06177173988483052908noreply@blogger.comtag:blogger.com,1999:blog-4746027850336066537.post-88390517661911582052013-12-11T12:50:54.307-05:002013-12-11T12:50:54.307-05:00No ideas but I'm curious about this too!No ideas but I'm curious about this too!mamaandmummyhttps://www.blogger.com/profile/15528993205678615960noreply@blogger.comtag:blogger.com,1999:blog-4746027850336066537.post-10756022320536470262013-12-11T07:17:15.452-05:002013-12-11T07:17:15.452-05:00I, too, do not teach my students algorithms for tw...I, too, do not teach my students algorithms for two-digit addition. I think it's so much more useful and efficient for them to learn to do math mentally. It takes so much more thought and demonstrates so much more understanding. <br />I struggle, though for two reasons...<br />1. Without fail, when parents see it on homework, they teach the child the algorithm. <br />2. The third grade teachers expect the students to know how to use the algorithm. <br />Any suggestions? Anonymoushttps://www.blogger.com/profile/07324104133961913453noreply@blogger.com