tag:blogger.com,1999:blog-5303307482158922565.comments2018-02-12T11:30:22.535-08:00Math Mama Writes...Sue VanHattumhttp://www.blogger.com/profile/10237941346154683902noreply@blogger.comBlogger2142125tag:blogger.com,1999:blog-5303307482158922565.post-76230680163880756552018-01-15T20:43:00.279-08:002018-01-15T20:43:00.279-08:00Thanks for letting me know they fixed it. I am sti...Thanks for letting me know they fixed it. I am still hoping someone will take me up on my alternate version of the puzzle.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-55113011703255302782018-01-15T20:00:07.190-08:002018-01-15T20:00:07.190-08:00It seems that they have edited the Nautilus post.
...It seems that they have edited the Nautilus post.<br /><br /><em>* This post was edited to clarify that the question is not posed simultaneously, and that both prisoners know who’s asked first.</em>Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-16550595914397762912017-11-16T08:34:53.898-08:002017-11-16T08:34:53.898-08:00Yes my regression does take the data down to 0. Wh...Yes my regression does take the data down to 0. What algebra steps are used to solve this. I know that at whatever time zero the body is 98.6. ...<br />I got it now. ThanksJosephhttps://www.blogger.com/profile/06455349495917896426noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-16586838878542139622017-11-16T07:04:17.264-08:002017-11-16T07:04:17.264-08:00>The data follows an exponential graph but take...>The data follows an exponential graph but takes the data down to 0.<br /><br />It sounds like you mean that your regression takes the graph down to 0. If you want to use regression, instead of doing the algebra, you would need to use excess heat (how high above room temp) as your y values.<br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-5834537033327713882017-11-16T06:40:04.722-08:002017-11-16T06:40:04.722-08:00I would figure that the temperature would bottom o...I would figure that the temperature would bottom out at room temperature or 80 degrees on the island. Also, I would figure 98.6 being the temperature just prior to death. The data follows an exponential graph but takes the data down to 0. So when the cup of coffee gets to 2 or 3 hours the temp should be room temp but using the model my regression takes it down to zero. <br />I have tried working some transformations using the equation I find but am at a loss as to how to fix the issue. Josephhttps://www.blogger.com/profile/06455349495917896426noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-11939235642447005922017-10-12T12:25:52.989-07:002017-10-12T12:25:52.989-07:00Someone just complained about readability issues. ...Someone just complained about readability issues. It looks fine from here. Let me know if the formatting is weird.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-55838453911563143482017-08-31T08:00:14.418-07:002017-08-31T08:00:14.418-07:00Calvin, Email me once to give me your phone number...Calvin, Email me once to give me your phone number, and I am happy to switch to phone.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-75352180606169122442017-08-30T23:06:32.039-07:002017-08-30T23:06:32.039-07:00Im an old school Gen X/ Millenial cusp. I prefer a...Im an old school Gen X/ Millenial cusp. I prefer a now 'outdated" mode of conversation of communication with people on phones. But I will email soon if you prefer. You just keep living and I hope blessed. P.S. Chlorine is the enemey to the nasal and occular passages, I agree now. From CalvinAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-83504632242620894642017-08-14T21:34:20.641-07:002017-08-14T21:34:20.641-07:00Calvin, please email me! Then we can have a real c...Calvin, please email me! Then we can have a real conversation. You comment actually belongs on my new post. (You'll see.)Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-26386995900342844612017-08-13T23:54:26.474-07:002017-08-13T23:54:26.474-07:00Susan, never forget your inspiration and ability t...Susan, never forget your inspiration and ability to inspire. Sincerely From Calvin in M, MichiganAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-8718914438970930702017-07-10T07:55:14.271-07:002017-07-10T07:55:14.271-07:00None of my students has paid enough attention to n...None of my students has paid enough attention to notice this.I would ask: Do different cups of coffee cool at different rates? What does it depend on?<br /><br />I'm guessing the first person had more insulating body fat (thicker coffee cup), and the second person was smaller overall. <br /><br />But that difference does seem big. I have always just made up the temps, and then found the time and made sure it worked with the clues. Maybe I should keep them closer to one another. I just looked up body cooling (again), and you must tell student this is an oversimplification of real life.<br /><br />I re-read what you wrote, and it's important to say "in the first hour" and never say "per hour". That would indicate a constant rate of change. Every time a student says a thing like that I ask what they think will happen in the second hour, and we return to the graph. Students are so used to straight lines, they want to treat everything the way they do straight lines.<br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-82149137409188577492017-07-10T07:11:25.933-07:002017-07-10T07:11:25.933-07:00Hi Sue,
I am working through this project to do w...Hi Sue,<br /><br />I am working through this project to do with my students and have a question that I can't seem to resolve: In the first set of data, the body temperature decreases at a rate of 4.4 degrees in one hour. In the second set of data (assignment 4), the body temperature decreases at a rate of 5.9 degrees in 30 minutes or 11.8 degrees per hour. Since it has a lower starting body temp when found, shouldn't it be decreasing more slowly than the first body found?Denisenoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-10391527160811076302017-07-04T07:45:00.793-07:002017-07-04T07:45:00.793-07:00Congratulations, Sharon! (I verified her solution....Congratulations, Sharon! (I verified her solution.)<br /><br />The rules for this type of puzzle: use four 4's and no other digits, use any other math symbols you want.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-72657026563257955452017-07-03T22:28:18.068-07:002017-07-03T22:28:18.068-07:00"A Puzzle: Can you make 109 from four 4's..."A Puzzle: Can you make 109 from four 4's? (I don't promise that it's possible...)"<br /><br />It didn't seem possible... but I found a way to do it. It can be done!Sharon Minsuknoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-17041354654751703042017-07-01T09:47:55.043-07:002017-07-01T09:47:55.043-07:00So many interesting posts! Good thing I have a lon...So many interesting posts! Good thing I have a long weekend for browsing... Thank you for hosting. :-)Denise Gaskinshttps://www.blogger.com/profile/11928843626113889088noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-54146242036132342002017-04-18T20:04:36.713-07:002017-04-18T20:04:36.713-07:00Thanks!
I guess there's an ebb and flow, and...Thanks! <br /><br />I guess there's an ebb and flow, and I'm at the ebb these days with blogging. Google deleted my photos on a bunch of posts. (Perhaps I didn't have proper permission?) If you notice any that would really benefit by the photos being fixed, I'd love to know. Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-4929634911149503352017-04-18T19:59:17.247-07:002017-04-18T19:59:17.247-07:00I suppose I could do something like use a telephon...I suppose I could do something like use a telephone, perhaps. I did try to find her through them two years ago, when I wrote this, I believe. Maybe this summer, when I'm not busy with teaching, I can try again. Thanks for suggesting it.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-15660161867776675512017-04-18T17:47:51.452-07:002017-04-18T17:47:51.452-07:00You can possibly contact Angela Andrews through Du...You can possibly contact Angela Andrews through DuPage Children's Museum in Naperville, Illinois. I beleive they were the original host of her Aunty Math site.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-17711840180864361092017-04-18T04:33:51.457-07:002017-04-18T04:33:51.457-07:00Hi Sue! I was working out this morning listening ...Hi Sue! I was working out this morning listening to a podcast of Inspired by Math on which you were interviewed. 2014?!!! I'm looking forward to reading more of your blog. Love this Anti matter idea mburwitzhttps://www.blogger.com/profile/02193718744477900221noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-17541148370083064742017-04-14T10:19:00.111-07:002017-04-14T10:19:00.111-07:00I like the idea of becoming invisible: Check out t...I like the idea of becoming invisible: Check out this post I wrote about one of my former students doing just that: https://accumulatearate.wordpress.com/2017/03/01/mr-orange/Unknownhttps://www.blogger.com/profile/07100974811829233763noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-75739823840916902422017-03-12T23:09:06.832-07:002017-03-12T23:09:06.832-07:00So glad to see your righteous passion for teaching...So glad to see your righteous passion for teaching Mathematics to the young. Im still thankfull that you taught me when I entered college, even though I was already damaged goods in terms of hating math. You sparked a willingness to learn again those 16 years ago.And you taught me the beauty of trees. Sincerely, Cavin. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-58106021597398081292017-01-24T06:24:22.403-08:002017-01-24T06:24:22.403-08:00By the time of my death. (I am imagining you awake...By the time of my death. (I am imagining you awake now, and seeing it yourself without this comment...)Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-51665310505844355012017-01-24T01:27:22.769-08:002017-01-24T01:27:22.769-08:00Hello Sue!
Quick question!
Granted, I'm read...Hello Sue!<br /><br />Quick question!<br /><br />Granted, I'm reading this at 4 a.m. and might be overlooking something very simply in my exhaustion. However, I am trying to follow the project (which is amazing, by the way) and I get stuck on Assignment 4. If you've narrowed it down to 4 suspects, and then in step 4, split them up into 4 groups (one per group) you would be able to determine the killer if you could determine which group of the four is unaccounted for. Totally get that. But how do you determine which of the four groups is the one without the alibi? The assignment just seems to stop there. <br /><br />Thanks!Cassandra Poulinhttps://www.blogger.com/profile/10626472874312204832noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-66502140809073123552017-01-02T07:12:07.290-08:002017-01-02T07:12:07.290-08:00I submitted this post to The Best of the Math Teac...I submitted this post to The Best of the Math Teacher Blogs 2016: a collection of people's favorite blog posts of the year. They intend to publish an edited volume of the posts soon and use the money raised toward a scholarship for TMC.<br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-54607383931021788982016-12-31T19:00:28.829-08:002016-12-31T19:00:28.829-08:00thanks! just requested it from my library!thanks! just requested it from my library!noreen clairehttps://www.blogger.com/profile/00928847082001555881noreply@blogger.com