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by Joseph Malkevitch
Tue May 23, 2017 2:14 pm
Forum: Math is More: General Discussion
Topic: Graphs of soap bubbles
Replies: 0
Views: 5

Graphs of soap bubbles

Dear Colleagues,

Here is a nifty paper about the graphs of planar soap bubbles written by David Eppstein a few years back.

https://arxiv.org/pdf/1207.3761.pdf

Regards,

Joe
by Joseph Malkevitch
Tue May 23, 2017 12:06 pm
Forum: Math is More: General Discussion
Topic: Voting systems compared
Replies: 0
Views: 2

Voting systems compared

Dear Colleagues, A recent attempt to compare the virtues of different voting systems appears here: https://democracychronicles.org/12-best-voting-systems/ Unfortunately, there are lot of abbreviations whose meaning is not always made clear. Some of the alphabet soup can be interpreted with the assis...
by Joseph Malkevitch
Mon May 22, 2017 1:19 pm
Forum: Math is More: General Discussion
Topic: New York City school choice
Replies: 0
Views: 3

New York City school choice

Dear Colleagues, While in a general way I agree with the "editorials" and "opinions" of the NY Times I often find its views on education to be puzzling. Here is a recent posting by Alvin Roth who helped as part of a team that designed the school choice system in NYC. Again, there...
by Joseph Malkevitch
Fri May 19, 2017 12:39 pm
Forum: Math is More: General Discussion
Topic: Abusing school choice
Replies: 0
Views: 8

Abusing school choice

Dear Colleagues, School choice (creating "competition" between schools by allowing students choice as to where they attend school) may or may not be a good idea but there is no doubt it has encouraged the development of lots of nifty mathematical ideas related to two-sided and one-side mar...
by Joseph Malkevitch
Thu May 18, 2017 12:36 pm
Forum: Math is More: General Discussion
Topic: "Judging" teachers
Replies: 0
Views: 8

"Judging" teachers

Dear Colleagues, How can we "measure" or "judge" that a teacher is effective? In recent years a deeply flawed method for doing this became policy in many school systems. Here is an article (obituary) about the person who helped design one of the original versions of the approach ...
by Joseph Malkevitch
Wed May 17, 2017 1:02 pm
Forum: Math is More: General Discussion
Topic: STEM education and Mathematics Education
Replies: 0
Views: 15

STEM education and Mathematics Education

Dear Colleagues, Matt Larson, the current president of NCTM has a thoughtful essay about STEM education/Mathematics Education. http://www.nctm.org/News-and-Calendar/Messages-from-the-President/Archive/Matt-Larson/Math-Education-Is-STEM-Education!/ At the content level when people promote STEM educat...
by Joseph Malkevitch
Tue May 16, 2017 4:33 pm
Forum: Math is More: General Discussion
Topic: Non-convex octagonal tilings of the plane
Replies: 0
Views: 7

Non-convex octagonal tilings of the plane

Dear Colleagues, It is not possible to tile the Euclidean plane with tiles (convex polygons) all of which have 6 or more sides. I am not allowing the possibility here of using 4-gons with two additional vertices on opposite sides of the 4-gon. https://en.wikipedia.org/wiki/Hexagonal_tiling (scroll d...
by Joseph Malkevitch
Sat May 13, 2017 10:52 am
Forum: Math is More: General Discussion
Topic: DNA and topology
Replies: 0
Views: 11

DNA and topology

Dear Colleagues,

DNA as a physical molecule gets packed into the nucleus of a cell - DNA coils and is sometimes knotted. In light of this topological ideas are being used to understand DNA better.

https://www.quantamagazine.org/20160105 ... led-dna/?u

Regards,

Joe
by Joseph Malkevitch
Fri May 12, 2017 11:03 am
Forum: Math is More: General Discussion
Topic: Fixing remedial education
Replies: 0
Views: 7

Fixing remedial education

Dear Colleagues, Here is a recent article about attempts to deal with the fact that often remedial mathematics classes are an obstacle for students who want to pursue a college degree where little mathematics is actually required for being successful: http://hechingerreport.org/californias-new-effor...
by Joseph Malkevitch
Thu May 11, 2017 3:43 pm
Forum: Math is More: General Discussion
Topic: Famous Indian scientists
Replies: 0
Views: 7

Famous Indian scientists

Dear Colleagues, There have been lots of very distinguished mathematicians and scientists from India. Here is a brief compilation of biographical information about a small section of such individuals, including the mathematician Ramanajan. http://www.tifr.res.in/~outreach/biographies/scientists.pdf ...
by Joseph Malkevitch
Wed May 10, 2017 5:38 pm
Forum: Math is More: General Discussion
Topic: Sharing research papers
Replies: 0
Views: 13

Sharing research papers

Dear Colleagues, When articles are published in many prestigious research journals the articles get copyrighted and the rights of authors to post copies of these papers for "free" distribution online is murky. Part of the issue here is that colleges or individuals buying online access to r...
by Joseph Malkevitch
Fri May 05, 2017 3:08 pm
Forum: Math is More: General Discussion
Topic: Thermodynamics
Replies: 0
Views: 23

Thermodynamics

Dear Colleagues, When thermodynamics emerged as a full fledged sub-branch of physics in the 19th century, mathematical tools needed to be developed to better understand and model the notion of randomness and other aspects of thermodynamics. This over a period of time was good both for physics, mathe...
by Joseph Malkevitch
Fri May 05, 2017 12:41 pm
Forum: Math is More: General Discussion
Topic: William Baumol (1922-2017)
Replies: 0
Views: 16

William Baumol (1922-2017)

Dear Colleagues, William Baumol the influential economist has died at 95. Here is an article about some of his work: https://www.vox.com/new-money/2017/5/4/15547364/baumol-cost-disease-explained and a list of his many publications (referencing his work with the mathematician Ralph Gomory), over a ve...
by Joseph Malkevitch
Thu May 04, 2017 2:05 pm
Forum: Math is More: General Discussion
Topic: Revised New York State english and mathematics learning standards
Replies: 0
Views: 13

Revised New York State english and mathematics learning standards

Dear Colleagues, NY State is in the process of revising its learning standards in the areas of English and mathematics. For information about the process of carrying out the revision and the changes being looked at you can consult: http://www.nysed.gov/news/2017/state-education-department-releases-r...
by Joseph Malkevitch
Tue May 02, 2017 12:15 pm
Forum: Math is More: General Discussion
Topic: Mathematics and school choice
Replies: 0
Views: 16

Mathematics and school choice

Dear Colleagues, Although school choice is often an attempt to undermine public schools by allowing private and religious oriented schools to receive public money mathematics can often be used to improved what large school systems do where arrangements exist to allow students to attend different sch...

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