tag:blogger.com,1999:blog-5303307482158922565.post6065036429659139158..comments2024-02-08T09:27:51.016-08:00Comments on Math Mama Writes...: Murder Mystery: A Project for LogarithmsSue VanHattumhttp://www.blogger.com/profile/10237941346154683902noreply@blogger.comBlogger61125tag:blogger.com,1999:blog-5303307482158922565.post-10837072883045550612023-05-17T15:19:18.291-07:002023-05-17T15:19:18.291-07:00Is the time of death around 12:27pm or am I way of...Is the time of death around 12:27pm or am I way off? Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-70591461495333836702015-05-25T06:34:47.779-07:002015-05-25T06:34:47.779-07:00I want the answers .!
I want the answers .!<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-84276575067725381372015-05-08T07:41:36.911-07:002015-05-08T07:41:36.911-07:00The problem can't be solved with the informati...The problem can't be solved with the information given. The person using the problem with students needs to add more students (and change all the names). If you're a teacher, please let me know what more you would need to use this. If you don't understand exponential functions and how that relates to cooling off, don't use this in a classroom. You can see in the comments above that a very irresponsible teacher used this just as it is, which makes no sense.<br /><br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-69823053873702116772015-05-08T05:20:58.891-07:002015-05-08T05:20:58.891-07:00I need help I'm stuckI need help I'm stuckAnonymoushttps://www.blogger.com/profile/09402698019243853466noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-64585713120468626152015-03-02T20:39:19.373-08:002015-03-02T20:39:19.373-08:00What do you think?What do you think?Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-34033359347111257572015-03-02T15:40:11.829-08:002015-03-02T15:40:11.829-08:00is it kevin
is it kevin<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-16670802829882856682014-03-30T20:44:38.721-07:002014-03-30T20:44:38.721-07:00Are you telling me you have no access to a way to ...Are you telling me you have no access to a way to heat water up? You can at least test the time, can't you?Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-74065061995454969132014-03-30T20:30:31.455-07:002014-03-30T20:30:31.455-07:00What do you think, Nelson? (And if you're not ...What do you think, Nelson? (And if you're not old enough to drink coffee, ask someone who is. Or google it. Or google the time McDonald's got sued because someone got burned by their coffee. Lots of options. No need to ask here.) You could buy a cup of coffee to see how long it takes to get cold. Or you could heat up some water, and check that.<br /><br />Sorry if I sound snippy. I am concerned because I've also gotten questions in email that seem like people don't want to think. I'm not sure yet what I want to do about it...<br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-8907617729020678062014-03-30T20:24:00.530-07:002014-03-30T20:24:00.530-07:00This comment has been removed by the author.Nelsonhttps://www.blogger.com/profile/16299664747490212402noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-66666024385679587262014-02-07T11:18:45.786-08:002014-02-07T11:18:45.786-08:00I don't understand. Email me to discuss answer...I don't understand. Email me to discuss answer if you want. (mathanthologyeditor on gmail)Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-87684347989049689112014-02-07T11:08:33.570-08:002014-02-07T11:08:33.570-08:00It was exactly what you posted here. The time she ...It was exactly what you posted here. The time she got was roughly an hour after the second pair. She said that the 3rd pair went by after the body was discovered and so they can't be suspects. So it was very confusing to find 2 pairs of suspects. They were supposed to make a poster for the puzzle. She did everything in the poster with out writing the suspects or the murderer. Just wrote the titles, suspects and murderer and wanted to ask the teacher about this part before completing it. When she went to ask her, the teacher has asked her to turn it in for a lower grade as she didn't complete it. Never answered her question too. I didn't check her answers, but I am pretty sure she got the answers right. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-7890700906235505912014-02-07T10:32:27.269-08:002014-02-07T10:32:27.269-08:00No, that's why I said I list the rest of the c...No, that's why I said I list the rest of the class in between. The way I do it is to put students in pairs, and have one pair walk by every few (say 4 to 15) minutes. I make sure none walks by at exactly the right time, so there are two pairs who are suspects. The second murder splits everyone up, so only one person is a suspect for both murders.<br /><br />Did the teacher use the names I gave here, instead of the kids in the class?Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-24983078529063290832014-02-07T10:28:32.223-08:002014-02-07T10:28:32.223-08:00My daughter got this project for her 8th grade mat...My daughter got this project for her 8th grade math class. The teacher gave only the 3 pairs that you have mentioned in this for assignment 3. The time of murder she got is not very close to any of the three values and she thinks the in between values for the other pairs should be there to find the true murderer. The time (given), closest to the value she got is about 1 hr before the murder. Are the 3 times given in your problem enough to find the murderer? Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-25495009115859029542014-02-04T17:32:22.863-08:002014-02-04T17:32:22.863-08:00Nope. The teachers can figure out the math. And I ...Nope. The teachers can figure out the math. And I don't want it searchable for students. You are welcome to email me with particular questions.Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-87413583972206678132014-02-04T17:30:43.914-08:002014-02-04T17:30:43.914-08:00Hey Sue,looks like a great project, do you have an...Hey Sue,looks like a great project, do you have an answer key for this you can post?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-65165592102791501092014-01-10T15:40:59.581-08:002014-01-10T15:40:59.581-08:00I tried to email you and it bounced. Try emailing ...I tried to email you and it bounced. Try emailing me directly (mathanthologyeditor on gmail).Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-27484659284168827032014-01-10T14:19:31.894-08:002014-01-10T14:19:31.894-08:00Sue,
I am wondering if you happen to have even m...Sue, <br /><br />I am wondering if you happen to have even more information about this project, or any sort of additional materials you use. This looks like a fun project and I would like to start it next week but have very limited time to put things together this week. My email is aderosa@mancosre6.edu. Thank you! AMDW1024https://www.blogger.com/profile/03703404938143761562noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-16247567102337184112013-10-22T07:42:40.834-07:002013-10-22T07:42:40.834-07:00I found my mistake. Don't you know it was in t...I found my mistake. Don't you know it was in the arithmetic, not in the mathematics. Thanks for this fun activity!Anne Chttps://www.blogger.com/profile/02115466582446190655noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-17796470592110171502013-10-21T15:50:23.712-07:002013-10-21T15:50:23.712-07:00I just edited the post to point to a soundtrack on...I just edited the post to point to a soundtrack on youtube. Thanks for pointing that out.<br /><br />Email me with the steps you took, and I'll point to your mistake. (suevanhattum on hotmail)Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-46878605641573249522013-10-21T13:09:14.109-07:002013-10-21T13:09:14.109-07:00I'm working through this project. Too fun! Nex...I'm working through this project. Too fun! Next step is to find the Gilligan's Island soundtrack. I wanted to check my result for Assignment 4...the death of the teacher. I got 38.618 minutes. Not feeling like this is correct. Thanks for your help!Anne Chttps://www.blogger.com/profile/02115466582446190655noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-4040699224024099152013-09-08T07:39:58.292-07:002013-09-08T07:39:58.292-07:00I don't think she did. But it's so long ag...I don't think she did. But it's so long ago I wouldn't remember it. (I searched on 'ashley' in my email.)Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-33336077579203607582013-09-07T19:11:10.323-07:002013-09-07T19:11:10.323-07:00Sue,
Just found this project and am hoping to use...Sue,<br /><br />Just found this project and am hoping to use it in Pre-cal. Did Ashley ever email you her variation on a theme? Would love to see what she has done.<br />TinaTina Palmerhttps://www.blogger.com/profile/11427341201863705060noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-19178447006883846572013-04-15T20:27:03.491-07:002013-04-15T20:27:03.491-07:00I don't know without re-doing it. Try plotting...I don't know without re-doing it. Try plotting your points as a graph, using desmos, if that will help you make sense of it. It sounds about right...Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-2276279493378602842013-04-15T20:01:16.447-07:002013-04-15T20:01:16.447-07:00I wanted to use "e" because we had just ...I wanted to use "e" because we had just introduced it and it would be a way to apply "e" but I see your point. I solved the equation and found that t=-.44 which is a fraction of an hour right? When multiplied by 60, the answer is -26 which means 26 minutes before the 1st temp of the corpse was taken. Is that right?Anonymoushttps://www.blogger.com/profile/10240551543089074524noreply@blogger.comtag:blogger.com,1999:blog-5303307482158922565.post-16815951054365752332013-04-13T17:19:56.517-07:002013-04-13T17:19:56.517-07:00When I wrote "I think this representation is ...When I wrote "I think this representation is easier" above, I meant my representation. I'm curious why you prefer to use e. <br /><br />Here's a bit more about how it goes now, cobbled together in part from a comment of mine above:<br /><br />We use y=a*b^t+c as a template, and find the values for a, b, and c. <br /><br />We know the temperature will eventually cool of to be the same as the air temp, so that's the asymptote, or the shift, and must = c.<br /><br />We always start with two time and temp pairs as data. We let the first given time be t=0, our second data point comes from the other time (measured as minutes or hours since the first time). Plugging in these two data points to the template lets us find a and then b. (If we didn't use t=0, it would still be possible to find a and b from the two data points, but much harder.)<br /><br />We also know that the body was 98.6 degrees just before dying. Now that we have a proper function, we can find the time of death from this.<br />Sue VanHattumhttps://www.blogger.com/profile/10237941346154683902noreply@blogger.com