Math Forum Internet News

Volume 21, Number 51

Back to Table of Contents

 December 23, 2016                              Vol. 21, No. 51


                    PNC Christmas Price Index
        Mathpix | Holiday Statistics from the U.S. Census


                    PNC CHRISTMAS PRICE INDEX


 For the 2016 holidays, PNC Wealth Management has brought to 
 life the gifts from the carol "The Twelve Days of
 Christmas" with free content that shows how much all those
 presents cost and reveals basic principles of
 economic fluctuation.

 Download a coloring book, click the icons of gift-wrapped
 presents for festive facts, and use the pull-down menu at the
 end of it all to chart how prices have changed through
 the decades:

 PNC's partner, The Stock Market Game(TM), provides accompanying
 lesson plans to help students identify economic trends and
 project their impact on the 2016 PNC Christmas Price Index,
 available in

    - English
pdf/aboutpnc/CPI/SMG%20CPI%202016_Eng.pdf - Spanish
pdf/aboutpnc/CPI/SMG%20CPI%202016_Span.pdf -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- Now taking place: math education conversation of the day "Thank you everyone -- you're the best! Happy holidays and cheers to 2017!!" - rosa, tweeted to @SuMACzanne -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- MATHPIX Throughout the month of December, a team of developers has been rolling out significant updates to its Mathpix app, which is available for iOS and Android devices. When it first hit app stores at the beginning of the year, Mathpix could take handwritten math that had been photographed on a smartphone, then simplify expressions and solve equations. Earlier this summer, Mathpix developers added Desmos graphing capabilities. By September, developers revealed the algebraic manipulations, step by step, afforded by Mathpix. Over the last few weeks, version 3.0 rolled out, with the ability to— - interpret matrices and piecewise functions; - graph in three dimensions; and - convert handwritten math into typeset digital documents that can then be exported to LaTeX, PDF, and Overleaf. Mathpix is free to download and use. Unlimited scanning costs $19.99 per year. The idea for "snap, solve, graph and go, 2D and 3D" (in the words of one admiring tweet) came to its founder during his graduate studies in Palo Alto. The development team now includes a high school senior and a Stanford professor. They freely provide their LaTeX API on GitHub, and their 3D grapher here: -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- Now taking place: math education conversation of the day "Recommended reading for all teachers who teach mathematics and who read about PISA results for school mathematics." - Jerry, posted to the math-teach discussion -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- HOLIDAY STATISTICS FROM THE U.S. CENSUS To commemorate this festive time of year, the U.S. Census Bureau presents some facts and figures about the holidays. With links to source reports, this year's statistics contain information about— - retail sales; - the value of Christmas tree decorations; - where toys are made; and - the number of young domestic turkeys hatched during September 2016 in the United States. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum at NCTM Online PD Online Workshops Ask Dr. Math Problems of the Week Powerful Problem Solving Mathematics Library Math Tools Teacher2Teacher Discussion Groups Join the Math Forum Ask Dr. Math Books Facebook Blogs Twitter Feed SEND COMMENTS TO: _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \ An archive of all the Math Forum newsletters and directions for subscribing can be found at

[Privacy Policy] [Terms of Use]

Home || The Math Library || Quick Reference || Search || Help 

© 1994- The Math Forum at NCTM. All rights reserved.