tag:blogger.com,1999:blog-4380407236179837110.comments2023-11-13T09:01:24.158-05:00RockyRoerAnonymoushttp://www.blogger.com/profile/09116848601260489841noreply@blogger.comBlogger69125tag:blogger.com,1999:blog-4380407236179837110.post-52954489453596664972017-12-29T07:45:37.217-05:002017-12-29T07:45:37.217-05:00Hi Rocky, very interesting read. Could you please ...Hi Rocky, very interesting read. Could you please go into further detail how you calculated the ways of choosing a run of 7s?<br /><br />How do you know that no combinations are counted twice. thanks alotmathguynoreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-30759812014164336592015-09-20T19:10:59.320-04:002015-09-20T19:10:59.320-04:00Thanks for sharing your puzzles - they are a great...Thanks for sharing your puzzles - they are a great idea. I arrived at your blog via Dan Meyer's post (and your comment) on Factoring Trinomials/Headache/Aspirin, etc. All the theory aside, I think many students like to solve puzzles, and one key to engaging them with factoring is to play up the puzzle aspect. One question - the file for Table Puzzles (Multiplication) is actually an answer key - do you have a blank copy of the file? I would love to 'borrow' these worksheets. - Wendy MenardMermaid of Brooklyn - Wendy Menardhttps://www.blogger.com/profile/16732230805520644038noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-19235182337200552862014-07-30T14:27:03.801-04:002014-07-30T14:27:03.801-04:00I created a rule for divisibility by seven, eleven...I created a rule for divisibility by seven, eleven and thirteen whose algorithm for divisibility by seven is this:<br />N = a,bcd; a' ≣ ( − cd mod 7 + a ) mod 7; cd is eliminated and if 7|a'b then 7|N. The procedure is applied from right to left repetitively till the leftmost pair of digits is reached. If the leftmost pair is incomplete consider a = 0.<br />Example: N = 382,536, using simple language:<br />36 to 42 = 6; 6 + 2 − 7 = 1 → 15; 15 to 21 = 6; 6 + 3 − 7 = 2 → 28; 7|28 and 7|N.<br />This rule is mentioned in my unpublished (officially registered) book: Divisibility by 7, the end of a myth?.<br />Details: http://www.pascalsimplified.blogspot.com.brSilvio Moura Velhohttps://www.blogger.com/profile/18322243925876063572noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-63920801836838925052014-06-20T13:21:11.028-04:002014-06-20T13:21:11.028-04:00Thanks for this. It gave me an idea of a project f...Thanks for this. It gave me an idea of a project for my Algebra 2 class to do.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-90063018490588084582013-06-27T06:30:03.398-04:002013-06-27T06:30:03.398-04:00Excellent post, just what I needed.Excellent post, just what I needed.Andreshttp://thehappyengineer.blogspot.it/noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-48698907983847592602013-04-06T15:25:30.442-04:002013-04-06T15:25:30.442-04:00Official word from the photographer is that the pi...Official word from the photographer is that the picture was taken on April 2, at 9:13 am. <br /><br />I was mistaken in assuming the website that provided the alta-azimuth data accounted for daylight saving's time, something that was easily checked as they said so at the bottom of the page. Adding an hour to my predictions makes me 1 day (out of 365 a year) and 20 minutes (out of 1440 per day) off, which I'm considering a victory. <br /><br />And as for the mini-argument I had with my wife, she wins. Anonymoushttps://www.blogger.com/profile/09116848601260489841noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-44762232325369844172013-03-14T14:55:59.554-04:002013-03-14T14:55:59.554-04:00This Graphing Calculator is AWESOME!!! =)
This Graphing Calculator is AWESOME!!! =)<br />Download free Graphing Calculator version: 1.3 apkhttp://blackmart-alpha.blogspot.com/2013/03/download-free-graphing-calculator.htmlnoreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-8140405279352726962013-01-15T21:11:30.209-05:002013-01-15T21:11:30.209-05:00I'm learning that last lesson a little right n...I'm learning that last lesson a little right now too!Tim Staperthttps://www.blogger.com/profile/13249608834795241784noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-17116766232096470542013-01-01T08:03:48.661-05:002013-01-01T08:03:48.661-05:00I'm a very visual person so I love that graphi...I'm a very visual person so I love that graphic with the shaded boxes. So interesting! P.S. He was born in '55, and got a silver cup from the GR Press. ;-) Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-20471946634557687032012-12-17T09:37:37.648-05:002012-12-17T09:37:37.648-05:00I know I'm one of those people guilty of sayin...I know I'm one of those people guilty of saying "that's so random..." Thanks for clarifying! I'll try to use one of the other words next time. :) P.S. Great movie clip. P.P.S. Cute penguin. Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-38395097675429447752012-11-22T10:17:42.359-05:002012-11-22T10:17:42.359-05:00A great list! I love you too! A great list! I love you too! Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-36161266820547861912012-11-22T01:29:46.252-05:002012-11-22T01:29:46.252-05:00Why would a merciful god create beings in his '...Why would a merciful god create beings in his 'form' and curse them eternally for the folly of a pair who supposedly lived mns of yrs ago??? That would be like you getting whipped for something your ancestor did in 100BC!!!! would you accept that?<br /><br />It would do better to keep an open mind understanding that Bible was written by man not god himself and hence is open to errors prone to any man. Also it would serve your purpose as a teacher to learn more about ancient religions as opposed to just focusing on a modern semitic religion.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-91312408250203791482012-11-20T18:02:33.803-05:002012-11-20T18:02:33.803-05:00This is so cool!! You are such a COOL teacher!! th...This is so cool!! You are such a COOL teacher!! this is awesome! im so proud of my Nerdy brother! through sufferinghttps://www.blogger.com/profile/18386487679921335462noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-11713807587086714722012-11-20T17:58:07.421-05:002012-11-20T17:58:07.421-05:00I felt happier after Mom died too- for that same r...I felt happier after Mom died too- for that same reason. I was so relieved that there was no more suffering, and i rejoiced in knowing she was finally with the Saviour she so longed to see. I love you! <br /><br />I love this assignment. I think this is such a cool opportunity. Showing how the physical world really does apply to us. Also, it is a great opportunity for you as a teacher to get to know your students on a new personal level. This is so very cool. Thanks for sharing- I wish i could have done this assignment when i was in your class!!through sufferinghttps://www.blogger.com/profile/18386487679921335462noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-41234125637199666322012-10-20T07:33:32.911-04:002012-10-20T07:33:32.911-04:00The calculator "videos" are gif's th...The calculator "videos" are gif's that my calculator emulator can produce. For more info, read http://rockyroer.blogspot.com/2011/06/ti-84-emulator-from-wabbitemu.html<br />Anonymoushttps://www.blogger.com/profile/09116848601260489841noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-30788610537578163762012-10-14T08:43:25.006-04:002012-10-14T08:43:25.006-04:00Many glitches and the students feel the need to ru...Many glitches and the students feel the need to rush. At times it has nothing to do with what was taught. Most students go to fast to think and process the information. By the time they press their button to submit response, the question is gone.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-1478835003349777132012-09-30T10:30:42.342-04:002012-09-30T10:30:42.342-04:00If you want to know the first real rule for divisi...If you want to know the first real rule for divisibility by 7 access: primeasdivisor.blogspot.com<br />Silvio Moura Velhohttps://www.blogger.com/profile/18322243925876063572noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-20242342181522813462012-07-17T12:11:21.078-04:002012-07-17T12:11:21.078-04:00When you showed this to me the other night, it was...When you showed this to me the other night, it was the coolest thing in astronomy I've seen in awhile. And thanks for not telling me exactly what I was looking for -- that perfect line of stars jumped right out at me! :)Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-79842639147998078162012-07-02T14:33:41.012-04:002012-07-02T14:33:41.012-04:00How did you create those calculator videos?How did you create those calculator videos?Tim Staperthttps://www.blogger.com/profile/13249608834795241784noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-31315907780610093962012-06-15T15:45:01.284-04:002012-06-15T15:45:01.284-04:00Well 2153 is 1 mod 4, so...Well 2153 is 1 mod 4, so...Tim Staperthttps://www.blogger.com/profile/13249608834795241784noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-90426395409646130912012-06-14T08:10:40.852-04:002012-06-14T08:10:40.852-04:00I love this post! This is something I've often...I love this post! This is something I've often wondered. But here's another thing to think about: A loaf of bread from the store is labeled as a 1 lb. loaf, and your calculations above are for a 2 lb. homemade loaf. So would a homemade 1 lb. cost only 66 cents? <br /><br />Yet there are a lot more slices in that store-bought 1 lb. than I can ever get from my homemade 1 lb... Hmmm...Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-81898128208028266982012-06-13T22:59:56.438-04:002012-06-13T22:59:56.438-04:00Hi Rocky. You can check my math. I calculate that ...Hi Rocky. You can check my math. I calculate that with a 20" mower and no overlap, you will need to mow at an average speed of 27.54 in/sec.rafterjphttps://www.blogger.com/profile/04321117712053643985noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-7996099941189699862012-06-13T22:36:42.394-04:002012-06-13T22:36:42.394-04:00I think the timing would be an issue too. Even th...I think the timing would be an issue too. Even though ther are no speeding laws in space, even at 100 mph, it would take 2400 hours, or 100 days of non stop driving, one way. That much food for three astronauts would cost a bit, and weigh the car a significant amount, which would reduce miles per gallon too.Rocky Roerhttps://www.blogger.com/profile/17833205290061997823noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-43112769146362631312012-06-13T21:10:07.317-04:002012-06-13T21:10:07.317-04:00Baldwin Street, in Dunedin, New Zealand, is consid...Baldwin Street, in Dunedin, New Zealand, is considered the world's steepest residential street. -Wikipedia<br /><br />That street has a 35 degree grade. If we constructed a road up to the moon with the same grade the actual mileage to the moon would be 415,000 miles so the cost would be $67,000. Still I think NASA neess to rethink its plan :-)<br /><br />Of course I don't know what kind of gas mileage you'll get climbing that bridge to the moon, or while in space, or the cost of the bridge, or how a combustion enigine will function in those high altitudes, or...Tim Staperthttps://www.blogger.com/profile/13249608834795241784noreply@blogger.comtag:blogger.com,1999:blog-4380407236179837110.post-30291722692511862012012-06-13T08:30:23.960-04:002012-06-13T08:30:23.960-04:00So you'd need to make $10 working in GR to mak...So you'd need to make $10 working in GR to make the trip break even. That's why I didn't like summers working at FCS where I'd be scheduled for 2-3 hours and make $20. Half of my paycheck would be going toward gas!Carrie Roerhttps://www.blogger.com/profile/12518265770331320768noreply@blogger.com