Mathematics 24x7

There is no escape...believe it or not. Mathematics is everywhere.

• United States

45 members

30 members

## Latest Activity

"grand idea! I have tweeted between $:\Phi_B=\int \vec{B}\cdot d\vec{A}:$ on HootSuite already !"
Feb 25, 2010
"Interesting -- I am no longer teaching math in our local public high school -- in large part due to my refusal to inflate grades. As the only male in the math department at the time, I was assigned several "low level" pre-algebra classes…"
Jan 7, 2010
J Edward Ladenburger replied to Christian Baune's discussion Divisibility in the group Math Problem Solving
"Using Modular Arithmetic {Mod[5]} Just look at the possibilities: n=0 mod 5 n= 1 mod 5 n=2 mod 5 n=3 mod 5 n=4 mod 5 When n=0, (n+1)^5 - (n+1) = 0 = 0 mod 5 When n=1, (n+1)^5 - (n+1) = 30 = 0 mod 5 When n=2, (n+1)^5 - (n+1) = 240 = 0 mod 5 When…"
Sep 14, 2009
J Edward Ladenburger replied to Christian Baune's discussion Divisibility in the group Math Problem Solving
"Not a formal proof, just a start for the discussion...plug and chug ;) n | value\n1 | 30\n2 | 240\n3 | 1020\n4 | 3120\n5 | 7770\n6 | 16800\n7 | 32760\n8 | 59040\n9 | 99990\n10 | 161040\n11 | 248820\n12 | 371280\n13 | 537810\n14 | 759360\n15 |…"
Sep 14, 2009
"Since learning styles have been addressed, I would add an emphasis on formal reasoning -- via derivations and proofs and models/demonstrations -- always trying to tie concepts to a broader whole, to make associations and links between mathematical…"
Sep 7, 2009
J Edward Ladenburger replied to Christian Baune's discussion Sums in the group Math Problem Solving
"star = 3 triangle = 5 circle = 7 swirl = 2 diamond = 11 so, ? = 21 I wrote a system of linear equations in matrix form [matrix = m] and ran NullSpace[m] in Mathematica. n = {{1 a, 2 b, 1 c, 0 d, 0 e, 20}, {1 a, 0 b, 0 c, 3 d, 0 e, 9}, {1 a, 2 b, 0…"
Aug 14, 2009
J Edward Ladenburger replied to Christian Baune's discussion Counting way in the group Math Problem Solving
"I have added the quick sketch I made to solve this per your request Christian. I simply traced paths, keeping track of each "choice" to head east or south. Once again, I am sure there is an easier method and my sketch would get complicated…"
Aug 14, 2009
J Edward Ladenburger replied to Christian Baune's discussion Counting way in the group Math Problem Solving
"hmm ... I get 13 different pathways by redrawing as a "decision" tree and counting the "leaves" at the end. These are my descriptive terms. I look forward to hearing of more formal language and from network folks who have more…"
Aug 13, 2009
"Perhaps this does not qualify as "software", but I think Wolfram|Alpha is worthy of mention -- as are the many Mathematica demonstrations and the free Mathematica player. Wolfram|Alpha http://www65.wolframalpha.com/ Demonstrations…"
Aug 11, 2009
"Bradford, I will check your website and fold some circles :) I am also a generalist and with formal training in physics have always looked to those few fundamental principles from which the "parts" can be deduced."
Aug 9, 2009
"interesting discussion going. MariaD -- I agree that it is unlikely that any rigid, "written in stone" approach to education is unlikely to succeed, even when it contains seeds of brilliance. Education is an art of reaching and probing and…"
Aug 8, 2009
J Edward Ladenburger joined Danny Clarke's group

### Teaching developmental math

There is a growing need to learn math for those who have had a bad experience with math in the past, or who have been away from math for a long time.I am interested in improved techniques for teaching math to this group of people.See More
Aug 8, 2009
"We have used Interwrite PRS system at Duke Marine Lab and have been pleased with the functionality -- but this does not use student's cell phones and I have not heard of such a system -- very interesting however and I'll do some…"
Jul 31, 2009
"Thank you very much Rashmi! I look forward to participating - learning and sharing as I am able!"
Jul 30, 2009
"I am too @jedward706"
Jul 30, 2009
"Welcome to Mathematics 24x7. The purpose of this network is to talk about all possibilities in Mathematics .There are people who love this subject and at the same time there are ones who are struggling for it. Let us join our hands and look for…"
Jul 30, 2009

## Profile Information

Name
Ed
Philosophy of life
Hold Orthodox Christian Worldview -- Seeker of Truth and Beauty -- Lover of Life and Learning --
Encouraging Classical Liberal Education

Experimental Physics, Math, Music, Chess, and The Great Outdoors tweak my passions
Cyber House
http://jedward706.wordpress.com
Profession
Physics Coordinator
Christ and His Creation
You in one line.
Ed

## Comment Wall (1 comment)

At 5:03pm on July 30, 2009, Rashmi Kathuria said…
Welcome to Mathematics 24x7. The purpose of this network is to talk about all possibilities in Mathematics .There are people who love this subject and at the same time there are ones who are struggling for it.
Let us join our hands and look for creative ingredients to make it interesting for everybody.
Thanks for joining this network.
Keep Sharing.