Search Me

Recent Posts
 Girls’ Angle Bulletin, Volume 13, Number 5
 LCM Optimal Sequences
 Girls’ Angle Bulletin, Volume 13, Number 4
 Girls’ Angle Bulletin, Volume 13, Number 3
 Happy New Year 2020!
 Girls’ Angle Bulletin, Volume 13, Number 2
 Girls’ Angle Bulletin, Volume 13, Number 1
 Why the Girls’ Angle Bulletin?
 Girls’ Angle Bulletin, Volume 12, Number 6
 Girls’ Angle Bulletin, Volume 12, Number 5
 Girls’ Angle Bulletin, Volume 12, Number 4
 A Student’s Perspective on a Math Collaboration
Categories
 applied math (5)
 Contest Math (24)
 gender issues (9)
 math (130)
 Math Education (107)
 Uncategorized (26)
 WIM videos (4)
Archives
 June 2020 (2)
 April 2020 (1)
 February 2020 (1)
 January 2020 (1)
 December 2019 (1)
 October 2019 (2)
 August 2019 (1)
 June 2019 (1)
 May 2019 (1)
 March 2019 (1)
 February 2019 (1)
 January 2019 (1)
 December 2018 (1)
 October 2018 (1)
 September 2018 (1)
 August 2018 (1)
 June 2018 (1)
 April 2018 (1)
 February 2018 (1)
 January 2018 (1)
 December 2017 (1)
 November 2017 (1)
 October 2017 (1)
 August 2017 (1)
 July 2017 (1)
 June 2017 (1)
 April 2017 (2)
 February 2017 (1)
 January 2017 (1)
 December 2016 (2)
 November 2016 (1)
 October 2016 (2)
 September 2016 (1)
 August 2016 (1)
 June 2016 (1)
 April 2016 (1)
 February 2016 (2)
 January 2016 (1)
 December 2015 (1)
 October 2015 (1)
 September 2015 (1)
 August 2015 (2)
 June 2015 (2)
 May 2015 (1)
 April 2015 (1)
 March 2015 (1)
 February 2015 (2)
 January 2015 (1)
 December 2014 (2)
 October 2014 (1)
 September 2014 (1)
 August 2014 (1)
 July 2014 (1)
 June 2014 (2)
 May 2014 (1)
 February 2014 (1)
 January 2014 (4)
 December 2013 (1)
 November 2013 (2)
 September 2013 (2)
 August 2013 (1)
 July 2013 (2)
 June 2013 (1)
 May 2013 (1)
 April 2013 (3)
 March 2013 (1)
 February 2013 (2)
 January 2013 (2)
 December 2012 (2)
 November 2012 (2)
 October 2012 (3)
 September 2012 (8)
 August 2012 (10)
 July 2012 (7)
 June 2012 (3)
 May 2012 (3)
 April 2012 (7)
 March 2012 (4)
 February 2012 (3)
 December 2011 (4)
 November 2011 (7)
 October 2011 (11)
 September 2011 (13)
 August 2011 (16)
Everything Math
 AIME
 angles
 area
 binomial coefficients
 calculus
 center of mass
 Chebyshev polynomials
 chocolate
 circles
 combinatorics
 complex numbers
 conformal
 crossword
 cyclotomic polynomials
 Deanna Needell
 Diophantine equations
 Emily Riehl
 exponentials
 Fermat's little theorem
 Fibonacci
 finite fields
 geometry
 Girls' Angle
 Girls' Angle Bulletin
 induction
 irreducible polynomials
 Jean Pedersen
 Julia Zimmerman
 Kate Jenkins
 Kristin Lauter
 Laura Pierson
 linear algebra
 lines
 logarithms
 math
 math contests
 Math Doctor Bob
 math event
 math games
 math magazine
 math prize for girls
 math problems
 math videos
 matrices
 Matthew de CourcyIreland
 minimal polynomials
 multiplication
 optimization
 origami
 parabolas
 Pascal's triangle
 permutations
 perspective drawing
 probability
 puzzle
 Pythagorean theorem
 Pythagorean triples
 raffle contest
 roots
 sets
 similarity
 sine
 stable marriage problem
 sumit
 telescoping sum
 tennis
 tessellations
 tilings
 triangles
 trigonometry
 variables
 vectors
 volume
 Whitney Souery
 zigzags
Tag Archives: area
Girls’ Angle Bulletin, Volume 13, Number 2
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. This issue’s interview is with Prof. Raegan Higgins, associate professor of mathematics at Texas Tech University. Prof. Higgins went to college and … Continue reading
Posted in math, Math Education
Tagged area, Deanna Needell, deep learning, generated photos, Jenny Kaufmann, Laura Pierson, Laver Cup, machine learning, Michelle Chen, neural nets, perspective drawing, probability, Raegan Higgins, selfreferential test, tennis, Texas Tech University, zigzags
Leave a comment
Girls’ Angle Bulletin, Volume 12, Number 2
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. We open with the second part of a multipart interview with mathematician Dr. Kristin Lauter, a professor at the University of Washington and … Continue reading
Girls’ Angle Bulletin, Volume 10, Number 3
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. Volume 10, Number 3 opens with an interview with Sommer Gentry, professor of mathematics at the US Naval Academy. Prof. Gentry invented a … Continue reading
WIM Video: Pick’s Theorem
In our latest WIM Video, Depaul University Associate Professor of Mathematics Bridget Tenner discusses Pick’s theorem. The Girls’ Angle WIM Video series is the brainchild of Girls’ Angle director Elisenda Grigsby. WIM Videos are often shot on the spur of the moment … Continue reading
Posted in math, Math Education, WIM videos
Tagged area, Bridget Tenner, equilateral triangles, lattice polygons, Pick's theorem
2 Comments
Girls’ Angle Bulletin, Volume 7, Number 2
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. In Bisection Envelopes, a paper to appear in the journal Involve, Noah FechtorPradines proves many interesting properties of the envelope of the set of … Continue reading
Manipulatives: Use With Caution!
Math manipulatives are concrete objects used as props in math education. As mere objects, they are, in and of themselves, not a bad thing. What is terrible is how they are often used in instruction.
Areas and Brownies
Recently at Girls’ Angle, we brought in a brownie and told the girls that nobody could have any until they figured out a way to dissect it so that everyone gets an equal share. I’ve done this activity before, but … Continue reading
Posted in math, Math Education
Tagged area, brownie, geometry, Petsi Pies, quadrilateral
Leave a comment
3D Trapezoids
A few days ago, I was discussing the area formula for a trapezoid with students who had just derived it for themselves. The discussion led to a neat generalization of the trapezoid to higher dimensions different from the one that envisions the 3D … Continue reading