tag:blogger.com,1999:blog-969821499728229660.post7479174511129205726..comments2024-11-05T08:24:30.910-05:00Comments on Scaffolded Math and Science: A manipulative for integer operations - negative number adding toolScaffoldedMathhttp://www.blogger.com/profile/12991099683629425350noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-969821499728229660.post-60598334623520437852019-12-23T18:47:50.936-05:002019-12-23T18:47:50.936-05:00I teach -(-6) as "the opposite of (-) negativ...I teach -(-6) as "the opposite of (-) negative 6 (-6), which then turns to +6. We'd then get the 4 back in as 4 + 6. There are sign examples on the back of the ruler for situations when signs are the same (or the same in disguise like your example). ScaffoldedMathhttps://www.blogger.com/profile/12991099683629425350noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-27912236813229209082019-12-20T06:54:01.435-05:002019-12-20T06:54:01.435-05:00How do you subtract a negative with the ruler? EX...How do you subtract a negative with the ruler? EX. 4 - (-6)?Anonymoushttps://www.blogger.com/profile/03598960033899451695noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-54830245595044705722018-10-15T21:06:00.228-04:002018-10-15T21:06:00.228-04:00Having them make their own rulers is such a great ...Having them make their own rulers is such a great idea. I feel it will help the kids become familiar with it before using it on integer problems. And Math Madness sounds so awesome! I would love to be a visitor in your class that day!ScaffoldedMathhttps://www.blogger.com/profile/12991099683629425350noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-44423489856285489772018-10-15T13:38:42.697-04:002018-10-15T13:38:42.697-04:00Thank you for sharing. I love the idea with the ru...Thank you for sharing. I love the idea with the ruler.<br /><br />I'm gonna be doing a Math Madness Session soon with nothing but Math for two hours.<br /><br />I'll even get them to make their own ruler.<br /><br />Thanks again,<br />snmyl6@gmail.comAnonymoushttps://www.blogger.com/profile/01012201502930759031noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-3205228901617057452017-10-17T14:27:30.564-04:002017-10-17T14:27:30.564-04:00Thank you for sharing, Linda! I concluded my resea...Thank you for sharing, Linda! I concluded my research in 2010 and agree that symmetry is how our brains work with integers. This is an interesting article. Thanks again!ScaffoldedMathhttps://www.blogger.com/profile/12991099683629425350noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-40849217286094603482017-10-17T08:14:08.749-04:002017-10-17T08:14:08.749-04:00Fantastic idea. Have you done any further research...Fantastic idea. Have you done any further research with your hinged number line? <br />You might be interested in a Stanford study that was done in 2015 in neuroscience regarding understanding negative numbers and how the brain uses symmetry to understand abstract concepts. https://news.stanford.edu/2015/07/06/symmetry-math-schwartz-070615/ <br />Thanks for sharing this and your thesis!Lindahttps://www.blogger.com/profile/07043369911584866519noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-88438730449533078472017-10-01T14:52:16.587-04:002017-10-01T14:52:16.587-04:00There are directions on the back for same-sign pro...There are directions on the back for same-sign problems. I explain it to my students this way... when we were kids and were adding 8 + 8, we didn't think about signs because they were the same. Now with -8 + -8 the signs are still the same, so we add and keep the sign like we did when we were younger. ScaffoldedMathhttps://www.blogger.com/profile/12991099683629425350noreply@blogger.comtag:blogger.com,1999:blog-969821499728229660.post-16799537458180756742017-10-01T14:36:17.536-04:002017-10-01T14:36:17.536-04:00I like the idea of the integer manipulative. How ...I like the idea of the integer manipulative. How do you use the ruler when finding the same number? Ex. -8 - 8 on the ruler?Anonymousnoreply@blogger.com